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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2660. Отображено 100.
14-03-2013 дата публикации

METAL POWDER FOR SELECTIVE LASER SINTERING, METHOD FOR MANUFACTURING THREE-DIMENSIONAL SHAPED OBJECT BY USING THE SAME, AND THREE-DIMENSIONAL SHAPED OBJECT OBTAINED THEREFROM

Номер: US20130065073A1
Автор: FUWA Isao
Принадлежит: Panasonic Corporation

There is provided a metal powder for use in a selective laser sintering method for producing a three-dimensional shaped object, wherein the metal powder comprises a powder mixture of a precipitation-hardening metal composition. In particular, the metal powder of the present invention is configured to have a Fe-based component powder and a Ni-based component powder which are individually included in the powder mixture wherein a powder made of an alloy of Fe-based and Ni-based components is not included as a main powder in the powder mixture. 1. A metal powder for use in a selective laser sintering method for producing a three-dimensional shaped object , whereinthe metal powder comprises a powder mixture of a precipitation-hardening metal composition; anda Fe-based component powder and a Ni-based component powder are individually included in the powder mixture whereas a powder made of an alloy of Fe-based and Ni-based components is not included as a main powder in the powder mixture.2. The metal powder according to claim 1 , wherein the Ni-based component powder is a powder made of an individual component such that the Ni-based component is not alloyed with any other component.3. The metal powder according to claim 1 , wherein the precipitation-hardening metal composition is a maraging steel composition or a precipitation-hardening stainless steel composition.4. The metal powder according to claim 3 , wherein the maraging steel composition comprises 17 to 19 weight percent of Ni component claim 3 , 7 to 8.5 weight percent of Co component claim 3 , 4.6 to 5.1 weight percent of Mo component claim 3 , 0.3 to 0.5 weight percent of Ti component claim 3 , 0.05 to 0.15 weight percent of Al component and a remaining weight percent of Fe component.5. The metal powder according to claim 1 , wherein a powder particle of the powder mixture has an average diameter of 5 μm to 50 μm.6. The metal powder according to claim 1 , wherein a powder particle of the powder mixture has an ...

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Номер записи: 1
21-03-2013 дата публикации

Titanium alloy complex powder containing ceramic and process for production thereof, consolidated titanium alloy material using this powder and process for production thereof

Номер: US20130071283A1
Автор: Hideo Takatori, Osamu Kano, Satoshi Sugawara
Принадлежит: Toho Titanium Co Ltd

Titanium alloy complex powder is yielded by hydrogenating titanium alloy raw material to generate hydrogenated titanium alloy, grinding and sifting it to obtain hydrogenated titanium alloy powder, adding ceramic powder selected from SiC, TiC, SiO x , TiO x (here, index x is a real number which is in 1≦x≦2) and Al 2 O 3 , and dehydrogenating the mixture of the hydrogenated titanium alloy powder and the ceramic powder. In addition, consolidated titanium alloy material is obtained by CIP process and subsequent HIP process to the titanium alloy complex powder or by HIP process after filling the titanium alloy complex powder into capsule.

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Номер записи: 2
21-03-2013 дата публикации

TITANIUM ALLOY COMPLEX POWDER CONTAINING COPPER POWDER, CHROMIUM POWDER OR IRON POWDER, TITANIUM ALLOY MATERIAL CONSISTING OF THIS POWDER, AND PROCESS FOR PRODUCTION THEREOF

Номер: US20130071284A1
Автор: Kano Osamu, Sugawara Satoshi, Takatori Hideo
Принадлежит:

A process for production of titanium alloy material has steps of hydrogenating titanium alloy material to generate hydrogenated titanium alloy; grinding, sifting and dehydrogenating the hydrogenated titanium alloy powder to generate titanium alloy powder; adding at least one of copper powder, chromium powder or iron powder to obtain titanium alloy complex powder; consolidating the titanium alloy complex powder by CIP process and subsequent HIP process, or by HIP process after filling the titanium alloy complex powder into a capsule. In addition, titanium alloy complex powder and titanium alloy material produced by the process are provided. 1. Titanium alloy complex powder comprising:titanium alloy powder containing aluminum and vanadium, or containing at least one kind selected from zirconium, tin, molybdenum, iron and chromium in addition to aluminum and vanadium, andat least one kind of metallic powder selected from copper powder, chromium powder and iron powder mixed with the titanium alloy powder,wherein the titanium alloy powder is made from hydrogenating titanium alloy as a raw material to generate hydrogenated titanium alloy powder and by dehydrogenating this hydrogenated titanium alloy powder, andwherein the amount of the metallic powder ranges from 1 to 10 wt % in case that one metallic powder is added, and the amount of the metallic powder added ranges from 1 to 20 wt % in case that two or more metallic powders are mixed.2. (canceled)3. The titanium alloy complex powder according to claim 1 , wherein average particle size of the copper powder claim 1 , chromium powder or iron powder ranges from 1 to 300 μm.4. A process for production of titanium alloy complex powder claim 1 , comprising steps of:hydrogenating titanium alloy raw material to generate hydrogenated titanium alloy powder,dehydrogenating the hydrogenated titanium alloy powder to generate titanium alloy powder, andmixing at least one of copper powder, chromium powder or iron powder with the ...

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Номер записи: 3
13-06-2013 дата публикации

Powder Material, Method for Manufacturing Communication Device, and Communication Device

Номер: US20130149184A1
Автор: Zhou Yanzhao
Принадлежит: Huawei Technologies Co., Ltd.

A powder material, a method for manufacturing a communication device, and a communication device are disclosed. The powder material according to an embodiment of the present invention includes quartz glass powder, tungsten powder, and an auxiliary material, where a weight proportion of the quartz glass powder is 5% to 90%, a weight proportion of the tungsten powder is 5% to 90%, and a weight proportion of the auxiliary material is 0 to 20%. The powder material according to another embodiment of the present invention includes titanium powder, tungsten powder, and iron powder, where a weight proportion of the titanium powder is 4% to 80%, a weight proportion of the tungsten powder is 5% to 90%, and a weight proportion of the iron powder is 4% to 80%. 1. A powder material comprising:quartz glass powder;tungsten powder; andan auxiliary material,wherein a weight proportion of the quartz glass powder is 5% to 90%,wherein a weight proportion of the tungsten powder is 5% to 90%, andwherein a weight proportion of the auxiliary material is 0% to 20%.2. The powder material according to claim 1 , wherein a maximum value of the weight proportion of the quartz glass powder is 75% to 90% claim 1 , wherein a minimum value of the weight proportion of the quartz glass powder is 5% to 10% claim 1 , wherein a maximum value of the weight proportion of the tungsten powder is 75% to 90% claim 1 , and wherein a minimum value of the weight proportion of the tungsten powder is 5% to 10%.3. The powder material according to claim 1 , wherein the weight proportion of the quartz glass powder is 15% to 70% claim 1 , and wherein the weight proportion of the tungsten powder is 15% to 70%.4. The powder material according to claim 3 , wherein a maximum value of the weight proportion of the quartz glass powder is 65% to 70% claim 3 , wherein a minimum value of the weight proportion of the quartz glass powder is 15% to 30% claim 3 , wherein a maximum value of the weight proportion of the tungsten ...

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Номер записи: 4
20-06-2013 дата публикации

Iron-based mixture powder for sintering and iron-based sintered alloy

Номер: US20130152735A1
Автор: Kimihiko Ando, Satomi Yamada, Tadayoshi Kikko
Принадлежит: Fine Sinter Co Ltd, Toyota Motor Corp

There is provided an iron-based mixture powder for sintering, as well as an iron-based sintered alloy using same, that are capable of reducing the cutting resistance of the iron-based sintered alloy and of mitigating the shortening of cutting tool life even when a metal fluoride powder is used. The iron-based mixture powder for sintering comprises an iron-based powder, a graphite powder, a hard powder that is harder than the iron-based powder, and a metalfluoride powder. With respect to particle asperity as expressed by the following equation, particle asperity=(perimeter of a section of a particle) 2 /(sectional area of the section×4Pi), the particle asperity of the metal fluoride powder is within the range of 2 to 5.

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Номер записи: 5
18-07-2013 дата публикации

ALUMINUM POWDER METAL ALLOYING METHOD

Номер: US20130183189A1
Автор: Bishop Donald Paul, Cooke Randy William, Donaldson Ian W., Hexemer, JR. Richard L.
Принадлежит: GKN Sinter Metals, LLC

A zirconium-doped aluminum powder metal and a method of making this powder metal are disclosed. The method of making includes forming an aluminum-zirconium melt in which a zirconium content of the aluminum-zirconium melt is less than 2.0 percent by weight. The aluminum-zirconium melt then powderized to form a zirconium-doped aluminum powder metal. The powderization may occur by, for example, air atomization. 1. A method of making a powder metal for production of a powder metal part , the method comprising:forming an aluminum-zirconium melt in which a zirconium content of the aluminum-zirconium melt is less than 2.0 percent by weight; andpowderizing the aluminum-zirconium melt to form a zirconium-doped aluminum powder metal.2. The method of claim 1 , wherein the step of powderizing includes air atomizing the aluminum-zirconium melt.3. The method of claim 1 , wherein powderizing the aluminum-zirconium melt to form a zirconium-doped aluminum powder metal includes at least one of atomizing with other gases such as argon claim 1 , nitrogen claim 1 , or helium claim 1 , as well as comminution claim 1 , grinding claim 1 , chemical reaction claim 1 , and electrolytic deposition.4. The method of claim 1 , further comprising the step of:forming the powder metal part from the zirconium-doped aluminum powder metal;wherein a quantity of zirconium in the powder metal part is substantially equal to a quantity of zirconium found in the zirconium-doped aluminum powder metal used to form the powder metal part.5. The method of claim 4 , wherein the zirconium-doped aluminum powder metal inhibits distortion of the powder metal part during a sintering process used to form the powder metal part.6. The method of claim 4 , wherein the powder metal part includes zirconium in an amount of less than 2.0 weight percent.7. The method of claim 4 , wherein the zirconium-doped aluminum powder metal is mixed with at least one other powder metal to provide at least one other alloying element thereby ...

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Номер записи: 6
22-08-2013 дата публикации

SILVER POWDER FOR SILVER CLAY AND SILVER CLAY INCLUDING SAME SILVER POWDER

Номер: US20130213261A1
Автор: Otani Shinji, Yamaji Takashi, Yamamoto Yoshifumi
Принадлежит: MITSUBISHI MATERIALS CORPORATION

A silver powder for silver clay, wherein a main component is Ag, and an amount of P is controlled to be 100 ppm or less. 1. A silver powder for silver clay , wherein a main component is Ag , and an amount of P is controlled to be 100 ppm or less.2. A silver powder for silver clay according to that is an atomized silver powder obtained by atomizing molten silver using water containing 18 ppm or less of P.3. A silver clay containing a silver powder according to claim 1 , a binder claim 1 , and a balance of water.4. A silver clay containing a silver powder according to claim 1 , a binder claim 1 , a surface active agent claim 1 , and a balance of water.5. A silver clay containing a silver powder according to claim 1 , a binder claim 1 , a fat claim 1 , and a balance of water.6. A silver clay containing a silver powder according to claim 1 , a binder claim 1 , a fat claim 1 , a surface active agent claim 1 , and a balance of water.7. A silver clay according to claim 3 , wherein the silver powder is an atomized silver powder obtained by atomizing molten silver using water containing 18 ppm or less of P.8. A silver clay according to claim 4 , wherein the silver powder is an atomized silver powder obtained by atomizing molten silver using water containing 18 ppm or less of P.9. A silver clay according to claim 5 , wherein the silver powder is an atomized silver powder obtained by atomizing molten silver using water containing 18 ppm or less of P.10. A silver clay according to claim 6 , wherein the silver powder is an atomized silver powder obtained by atomizing molten silver using water containing 18 ppm or less of P. 1. Field of the InventionThe present invention relates to a silver powder for silver clay having excellent sinterability and silver clay including the same silver powder.Priority is claimed on Japanese Patent Application No. 2012-002339 filed on Jan. 10, 2012, the content of which is incorporated herein by reference.2. Background ArtJewelry and artistic craft ...

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Номер записи: 7
17-10-2013 дата публикации

IRON POWDER FOR COATING SEEDS AND SEED

Номер: US20130269249A1
Автор: Fujinaga Masashi, Kawano Takashi
Принадлежит: JFE STEEL CORPORATION

In an iron powder for coating a seed, the mass percentage of an iron powder with a particle size of 63 μm or less is 0% to 75%, the mass percentage of an iron powder with a particle size of more than 63 gm to 150 μm is 25% to 100%, and the mass percentage of an iron powder with a particle size of more than 150 μm is 0% to 50%. This allows the iron powder to form a coating from which the iron powder is unlikely to drop during not only seeding but also transportation and also allows an iron powder-coated seed coated with the iron powder to be obtained. The following iron powder and rice seed can be obtained: an iron powder, unlikely to damage rice seeds and easy to handle, for coating a rice seed and an iron powder-coated rice seed coated with the iron powder. 1. An iron powder for coating a seed , wherein the mass percentage of an iron powder with a particle size of 63 μm or less is 0% to 75% , the mass percentage of an iron powder with a particle size of more than 63 μm to 150 μm is 25% to 100% , and the mass percentage of an iron powder with a particle size of more than 150 μm is 0% to 50%.2. The iron powder for coating a seed according to claim 1 , wherein the mass percentage of an iron powder with a particle size of 45 μm or less is 0% to 30%.3. The iron powder for coating a seed according to claim 1 , wherein the mass percentage of the iron powder with a particle size of more than 63 μm to 150 μm is 50% or more.4. The iron powder for coating a seed according to claim 2 , wherein the mass percentage of the iron powder with a particle size of more than 63 μm to 150 μm is 50% or more.5. The iron powder for coating a seed according to being produced by a reducing method or an atomizing method.6. A seed coated with the iron powder for coating a seed according to .7. The seed according to being a rice seed. The present invention relates to an iron powder suitable for coating rice seeds and also relates to a seed coated with such an iron powder.Laborsaving in ...

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Номер записи: 8
14-11-2013 дата публикации

DISINTEGRABLE AND CONFORMABLE METALLIC SEAL, AND METHOD OF MAKING THE SAME

Номер: US20130300066A1
Автор: Hern Gregory Lee, Richard Bennett M., Xu YingQing, Xu Zhiyue
Принадлежит: BAKER HUGHES INCORPORATED

A seal includes a metal composite that has a cellular nanomatrix that includes a metallic nanomatrix material, a metal matrix disposed in the cellular nanomatrix, and a disintegration agent; an inner sealing surface; and an outer sealing surface disposed radially from the inner sealing surface. The seal can be prepared by combining a metal matrix powder, a disintegration agent, and metal nanomatrix material to form a composition; compacting the composition to form a compacted composition; sintering the compacted composition; and pressing the sintered composition to form the seal. 1. A seal comprising: a cellular nanomatrix comprising a metallic nanomatrix material;', 'a metal matrix disposed in the cellular nanomatrix; and', 'a disintegration agent;, 'a metal composite includinga first sealing surface; anda second sealing surface opposingly disposed from the first sealing surface.2. The seal of claim 1 , wherein the first sealing surface is disposed on the interior of the seal claim 1 , and the second sealing surface is radially disposed from the first sealing surface on the exterior of the seal.3. The seal of claim 1 , wherein the disintegration agent is disposed in the cellular nanomatrix external to the metal matrix.4. The seal of claim 1 , wherein the disintegration agent is disposed in the metal matrix.5. The seal of claim 1 , wherein the metal matrix comprises aluminum claim 1 , iron claim 1 , magnesium claim 1 , manganese claim 1 , zinc claim 1 , or a combination comprising at least one of the foregoing.6. The seal of claim 1 , wherein the disintegration agent comprises cobalt claim 1 , copper claim 1 , iron claim 1 , nickel claim 1 , tungsten claim 1 , zinc claim 1 , or a combination comprising at least one of the foregoing.7. The seal of claim 1 , wherein the metallic nanomatrix material comprises aluminum claim 1 , cobalt claim 1 , copper claim 1 , iron claim 1 , magnesium claim 1 , nickel claim 1 , silicon claim 1 , tungsten claim 1 , zinc claim 1 , an ...

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Номер записи: 9
14-11-2013 дата публикации

FE-BASED AMORPHOUS ALLOY POWDER, DUST CORE USING THE SAME, AND COIL-EMBEDDED DUST CORE

Номер: US20130300531A1
Автор: KOSHIBA Hisato, Okamoto Jun, TSUCHIYA Keiko
Принадлежит:

An Fe-based amorphous alloy powder of the present invention has a composition represented by (FeNiSnCrPCBSi)M. In this composition, 0 at %≦a≦10 at %, 0 at %≦b≦3 at %, 0 at %≦c≦6 at %, 6.8 at %≦x≦10.8 at %, 2.2 at %≦y≦9.8 at %, 0 at %≦z≦4.2 at %, and 0 at %≦t≦3.9 at % hold, a metal element M is at least one selected from the group consisting of Ti, Al, Mn, Zr, Hf, V, Nb, Ta, Mo, and W, and the addition amount α of the metal element M satisfies 0.04 wt %≦α≦0.6 wt %. Accordingly, besides a decrease of a glass transition temperature (Tg), an excellent corrosion resistance and high magnetic characteristics can be obtained. 1. An Fe-based amorphous alloy powder having a composition represented by (FeNiSnCrPCBSi)M , wherein 0 at %≦a≦10 at % , 0 at %≦b≦3 at % , 0 at %≦c≦6 at % , 6.8 at %≦x≦10.8 at % , 2.2 at %≦y≦9.8 at % , 0 at %≦z≦4.2 at % , and 0 at %≦t≦3.9 at % hold , a metal element M is at least one selected from the group consisting of Ti , Al , Mn , Zr , Hf , V , Nb , Ta , Mo , and W , and the addition amount a of the metal element M satisfies 0.04 wt %≦α≦0.6 wt %.2. The Fe-based amorphous alloy powder according to claim 1 , wherein the addition amount z of B satisfies 0 at %≦z≦2 at % claim 1 , the addition amount t of Si satisfies 0 at %≦t≦1 at % claim 1 , and the sum of the addition amount z of B and the addition amount t of Si satisfies 0 at %≦z+t≦2 at %.3. The Fe-based amorphous alloy powder according to claim 1 , wherein the alloy powder includes B and Si claim 1 , and the addition amount z of B is larger than the addition amount t of Si.4. The Fe-based amorphous alloy powder according to claim 1 , wherein the addition amount α of the metal element M satisfies 0.1 wt %≦c≦0.6 wt %.5. The Fe-based amorphous alloy powder according to claim 1 , wherein the metal element M includes Ti.6. The Fe-based amorphous alloy powder according to claim 1 , wherein the metal element M includes Ti claim 1 , Al claim 1 , and Mn.7. The Fe-based amorphous alloy powder according to ...

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Номер записи: 10
14-11-2013 дата публикации

IRON BASED POWDERS FOR POWDER INJECTION MOLDING

Номер: US20130302202A1
Автор: Larsson Anna
Принадлежит: Höganas AB (publ)

An iron-based powder composition for metal injection molding having an average particle size of 20-60 μm, and having 99% of the particles less than 120 μm wherein the iron-based powder composition includes, by weight percent of the iron-based powder composition: Mo: 0.3-1.6, P: 0.1-0.6, optionally Cu: up to 3.0, optionally Si: up to 0.6, optionally Cr: up to 5, optionally, unavoidable impurities: up to 1.0, whereof carbon is less than 0.1, the balance being iron, and wherein the sum of Mo and 8*P content is within the range of 2-4.7. 1. An iron-based powder composition for metal injection molding having an average particle size of 20-60 μm , and having 99% of the particles less than 120 μm wherein the iron-based powder composition comprises by weight percent of the iron-based powder composition;Mo: 0.3-1.6,P: 0.1-0.6,optionally Cu: up to 3.0,optionally Si: up to 0.6,Cr: up to 5,Optionally unavoidable impurities: up to 1.0, whereof carbon is less than 0.1, the balance being iron, andwherein the sum of Mo and 8*P content is within the range of 2-4.7.2. An iron-based powder composition according to wherein the iron based composition includes an iron powder being prealloyed with Mo in such amounts that the powder composition includes 0.3-1.6% Mo by weight.3. An iron-based powder composition according to wherein P is present in the form of FeP powder.4. An iron-based powder composition according to wherein the content of Mo is 0.35-1.55% claim 1 , by weight of the iron-based powder composition.5. An iron-based powder composition according to wherein the content of P is 0.1-0-45% by weight of the iron-based powder composition.6. A metal injection molding feedstock composition comprising: the iron based powder composition according to and a binder.7. A metal injection molding feedstock according to wherein the binder is at least one organic binder in a concentration of 30-65% by volume of the feedstock composition.8. A method for producing a sintered component comprising ...

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Номер записи: 11
21-11-2013 дата публикации

ALUMINUM ALLOY POWDER METAL WITH TRANSITION ELEMENTS

Номер: US20130309123A1
Автор: Bishop Donald Paul, Cooke Randy William, Donaldson Ian W., Hexemer, JR. Richard L.
Принадлежит: GKN Sinter Metals, LLC

A transition element-doped aluminum powder metal and a method of making this powder metal are disclosed. The method of making includes forming an aluminum-transition element melt in which a transition element content of the aluminum-transition element melt is less than 6 percent by weight. The aluminum-transition element melt then powderized to form a transition element-doped aluminum powder metal. The powderization may occur by, for example, air atomization. 1. A method of making a powder metal for production of a powder metal part , the method comprising:forming an aluminum-transition element melt in which a content of a transition element in the aluminum-transition element melt is less than 6 percent by weight; andpowderizing the aluminum-transition element melt to form a transition element-doped aluminum powder metal.2. The method of claim 1 , wherein the step of powderizing includes air atomizing the aluminum-transition element melt.3. The method of claim 1 , wherein powderizing the aluminum-transition element melt to form a transition element-doped aluminum powder metal includes at least one of atomizing with other gases such as argon claim 1 , nitrogen claim 1 , or helium claim 1 , as well as comminution claim 1 , grinding claim 1 , chemical reaction claim 1 , and electrolytic deposition.4. The method of claim 1 , further comprising the step of:forming the powder metal part from the transition element-doped aluminum powder metal;wherein a concentration of the transition element in the powder metal part is substantially equal to a concentration of the transition element found in the transition element-doped aluminum powder metal used to form the powder metal part.5. The method of claim 4 , wherein the powder metal part includes the transition element in an amount of less than 2 weight percent.6. The method of claim 4 , wherein the transition element-doped aluminum powder metal is mixed with at least one other powder metal to provide at least one other alloying ...

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Номер записи: 12
28-11-2013 дата публикации

POWDER METAL COMPOSITIONS FOR WEAR AND TEMPERATURE RESISTANCE APPLICATIONS AND METHOD OF PRODUCING SAME

Номер: US20130315772A1
Автор: "LEsperance Gilles", Beaulieu Philippe, Christopherson, Farthing Leslie John, JR. Denis B., Schoenwetter Todd
Принадлежит: FEDERAL-MOGUL CORPORATION

A powder metal composition for high wear and temperature applications is made by atomizing a melted iron based alloy including 3.0 to 7.0 wt. % carbon; 10.0 to 25.0 wt. % chromium; 1.0 to 5.0 wt. % tungsten; 3.5 to 7.0 wt. % vanadium; 1.0 to 5.0 wt. % molybdenum; not greater than 0.5 wt. % oxygen; and at least 40.0 wt. % iron. The high carbon content reduces the solubility of oxygen in the melt and thus lowers the oxygen content to a level below which would cause the carbide-forming elements to oxidize during atomization. The powder metal composition includes metal carbides in an amount of at least 15 vol. %. The microhardness of the powder metal composition increases with increasing amounts of carbon and is typically about 800 to 1,500 Hv50. 1. A powder metal composition , comprising:3.0 to 7.0 wt. % carbon, 10.0 to 25.0 wt. % chromium, 1.0 to 5.0 wt. % tungsten, 3.5 to 7.0 wt. % vanadium, 1.0 to 5.0 wt. % molybdenum, not greater than 0.5 wt. % oxygen, and at least 40.0 wt. % iron, based on the total weight of the powder metal composition.2. The powder metal composition of including 3.5 to 4.0 wt. % carbon claim 1 , 11.0 to 15.0 wt. % chromium claim 1 , 1.5 to 3.5 wt. % tungsten claim 1 , 4.0 to 6.5 wt. % vanadium claim 1 , 1.0 to 3.0 wt. % molybdenum claim 1 , not greater than 0.3 wt. % oxygen claim 1 , and 50.0 to 81.5 wt % iron.3. The powder metal composition of consisting of 3.8 wt. % carbon claim 2 , 13.0 wt. % chromium claim 2 , 2.5 wt. % tungsten claim 2 , 6.0 wt. % vanadium claim 2 , 1.5 wt. % molybdenum claim 2 , 0.2 wt. % oxygen claim 2 , 70.0 to 80.0 wt. % iron claim 2 , and impurities in an amount not greater than 2.0 wt. %.4. The powder metal composition of including at least one of cobalt claim 1 , niobium claim 1 , titanium claim 1 , manganese claim 1 , sulfur claim 1 , silicon claim 1 , phosphorous claim 1 , zirconium claim 1 , and tantalum.5. The powder metal material of including metal carbides in an amount of at least 15.0 vol. % claim 1 , based ...

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Номер записи: 13
19-12-2013 дата публикации

ALUMINUM ALLOY POWDER METAL WITH HIGH THERMAL CONDUCTIVITY

Номер: US20130333870A1
Автор: Bishop Donald Paul, Donaldson Ian W., Hexemer, JR. Richard L.
Принадлежит: GKN Sinter Metals, LLC

An aluminum alloy powder metal is disclosed. A sintered part made from the aluminum alloy powder has a thermal conductivity comparable to or exceeding parts made from wrought aluminum materials. 1. An aluminum alloy powder metal comprising:a nominally pure aluminum material with magnesium and tin additions;wherein a thermal conductivity at a given temperature of a sintered part made from the aluminum alloy powder metal exceeds a thermal conductivity at the given temperature of a wrought part made from a 6061 aluminum alloy over a temperature range that includes 280 K to 360 K2. The aluminum alloy powder metal of claim 1 , wherein the magnesium addition is made as an admixed powder and the tin is added as an elemental powder or pre-alloyed with the aluminum material.3. The aluminum alloy powder metal of claim 2 , wherein the magnesium is approximately 1.5 weight percent of the aluminum alloy powder metal and the tin is approximately 1.5 weight percent of the aluminum alloy powder metal.4. The aluminum alloy powder metal of claim 2 , wherein the magnesium is approximately 1.0 weight percent of the aluminum alloy powder metal and the tin is approximately 1.0 weight percent of the aluminum alloy powder metal.5. The aluminum alloy powder metal of claim 2 , wherein the aluminum alloy powder metal further comprises a zirconium addition.6. The aluminum alloy powder metal of claim 5 , wherein the zirconium addition is in a range of 0.1 weight percent to 3.0 weight percent.7. The aluminum alloy powder metal of claim 6 , wherein the zirconium addition is approximately 0.2 weight percent.8. The aluminum alloy powder metal of claim 1 , wherein the aluminum alloy powder metal further comprises a ceramic addition.9. The aluminum alloy powder metal of claim 8 , wherein the ceramic addition is up to 15 volume percent of the aluminum alloy powder metal.10. The aluminum alloy powder metal of claim 8 , wherein the ceramic addition is one of SiC and AlN.11. The aluminum alloy powder ...

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Номер записи: 14
06-02-2014 дата публикации

MOLYBDENUM METAL POWDER

Номер: US20140037491A1
Автор: Gries Benno
Принадлежит:

The invention relates to a process for producing sinterable molybdenum metal powder in a moving bed, sinterable molybdenum powder and its use. 115.-. (canceled)16. Molybdenum metal powder obtainable according to a process comprising reduction of molybdenum-containing precursors in a moving bed having a reaction space and a cooling zone , characterized in that the reduction is carried out by means of an inflowing atmosphere containing water vapor and hydrogen and having a dew point of >+20° C. on entry into the reaction space ,wherein the hydrogen is introduced simultaneously in two substreams, namely a humid substream having a dew point of at least +20° C. into the reaction space and a dry substream into the cooling zone.17. Molybdenum metal powder according to claim 16 , wherein molybdenum dioxide (MoO) is used as a molybdenum-containing precursor.18. Molybdenum metal powder according to claim 17 , wherein the molybdenum dioxide has a specific BET surface area claim 17 , measured in accordance with ASTM 3663 claim 17 , of ≦2 m/g.19. Molybdenum metal powder according to claim 17 , wherein the MoOhas a reduction loss of not more than 27% by weight.20. Molybdenum metal powder which has a specific surface area claim 17 , measured in accordance with ASTM 3663 claim 17 , of from 0.5 to 2 m/g claim 17 , a flowability of ≧140 sec per 50 g of powder claim 17 , measured in accordance with ASTM B 213 claim 17 , and an oxygen content of from 0.07 to 0.5%.21. Molybdenum metal powder according to claim 20 , wherein the powder has an FSSS/FSSS lab milled ratio of ≧1.4 and ≦5.22. Molybdenum metal powder according to claim 20 , wherein the powder has an FSSS/FSSS lab milled ratio of ≧1.4 and ≦3.23. Molybdenum metal powder according to claim 20 , wherein the powder has an FSSS/FSSS lab milled ratio of ≧1.4 and ≦2.5.24. Molybdenum metal powder according to claim 20 , wherein the FSSS particle size of the powder claim 20 , measured in accordance with ASTM B 330 claim 20 , is from 2 to ...

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Номер записи: 15
01-01-2015 дата публикации

METAL POWDER FOR POWDER METALLURGY AND SINTERED BODY

Номер: US20150000468A1
Автор: NAKAMURA Hidefumi
Принадлежит:

There is provided a metal powder for powder metallurgy including Zr and Si in a manner such that following conditions of (A) and (B) are satisfied, wherein a remainder thereof includes at least one element selected from the group consisting of Fe, Co and Ni, (A) the mass ratio of a content of Zr to a content of Si is 0.03 to 0.3, and (B) the content of Si is 0.35 to 1.5% by mass. 1. A metal powder for powder metallurgy comprising:Zr and Si in a manner such that following conditions of (A) and (B) are satisfied:(A) the mass ratio of a content of Zr to a content of Si is 0.03 to 0.3, and(B) the content of Si is 0.35 to 1.5% by mass,wherein a remainder thereof includes a low alloy steel that includes at least one metal element selected from the group consisting of Fe, Co and Ni.2. The metal powder for powder metallurgy according to claim 1 , wherein the content of Zr is 0.015 to 0.3% by mass.3. The metal powder for powder metallurgy according to claim 1 , further comprising:C (carbon), wherein a mass ratio of a content of C to the content of Si is 0.001 to 3.4. The metal powder for powder metallurgy according to claim 3 , wherein a content of C is 0.001 to 2.5% by mass.5. The metal powder for powder metallurgy according to claim 3 , wherein the metal element includes Fe claim 3 , the content of Si is 0.5 to 0.8% by mass, and', 'the content of C is 0.1 to 0.7% by mass., 'the content of Zr is 0.03 to 0.1% by mass,'}6. The metal powder for powder metallurgy according to claim 1 , wherein the metal element is a metal element corresponding to a composition where an atomic arrangement at a sintering temperature is a face-centered cubic lattice.7. The metal powder for powder metallurgy according to claim 1 , wherein the metal element claim 1 , Zr claim 1 , and Si form an alloy or an intermetallic compound.8. The metal powder for powder metallurgy according to claim 1 , wherein a mean particle size is 1 to 30 μm.9. The metal powder for powder metallurgy according to claim 1 , ...

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Номер записи: 16
07-01-2016 дата публикации

SILVER POWDER AND SILVER PASTE

Номер: US20160001361A1
Автор: KAWAKAMI Yuji, MURAKAMI Akihiro, TERAO Toshiaki
Принадлежит: SUMITOMO METAL MINING CO., LTD.

A silver powder is provided that has thixotropy suitable for utilization as a paste, combines the thixotropy with good dispersibility, is easy to knead, and prevents flake generation. The silver powder has a maximum torque per specific surface area of not less than 2 N·g/m and not more than 5 N·g/m, the maximum torque per specific surface area being obtained by dividing a maximum torque determined in accordance with a method for measuring an absorption amount defined by JIS K6217-4 by a specific surface area determined by the BET method. 1. A silver powder , having a maximum torque per specific surface area of not less than 2 N·g/m and not more than 5 N·g/m , said maximum torque per specific surface area being obtained by dividing a maximum torque by a specific surface area determined by BET method , said maximum torque being determined in accordance with a method for measuring an absorption amount which is defined by Japanese Industrial Standard (JIS) K6217-4.2. The silver powder according to claim 1 , the silver powder having:{'sub': SEM', 'SEM, 'a number average particle diameter Dof not less than 0.2 μm and not more than 2.0 μm, said number average particle diameter Dbeing determined by an image observed by a scanning electron microscope; and'}{'sub': 50', 'SEM', '50', 'SEM', '50', 'SEM, 'a ratio D/Dof not less than 1.8 and not more than 4.2, said ratio D/Dbeing a ratio of a particle diameter Don a volume basis measured by laser diffraction scattering to the number average particle diameter D.'}3. The silver powder according to claim 1 , the silver powder having a volume resistivity of not more than 10 μΩ·cm when a silver paste obtained by kneading the silver powder claim 1 , terpineol claim 1 , and a resin with a rotary and revolutionary agitator at a centrifugal force of 420 G is printed on an alumina substrate and baked for 60 minutes at a temperature of 200° C. in the atmosphere.4. The silver powder according to claim 2 , the silver powder having a volume ...

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Номер записи: 17
07-01-2021 дата публикации

COMPACT BUILD TANK FOR AN ADDITIVE MANUFACTURING APPARATUS

Номер: US20210001551A1
Автор: Karlsson Kristofer
Принадлежит: ARCAM AB

Described is an additive manufacturing apparatus that includes a telescopic build tank operatively connected at opposing ends to a powder table and a build table. The telescopic build tank includes at least two segments telescopically coupled to one another, each of the at least two segments comprising a set of engagement grooves located on an interior surface of the at least two segments and a set of engagement pins located on an exterior surface of the at least two segments. The set of engagement pins is configured to engage with and travel along a corresponding set of engagement grooves of another of the at least two segments, and each engagement groove comprises a first axially extending channel positioned along a single axis and having at least one closed end, the at least one closed end being configured to impede separation of the at least two segments relative to one another. 1. An additive manufacturing apparatus for forming a three-dimensional article layer by layer from a powder , the additive manufacturing apparatus comprising:a powder table;a build table; anda telescopic build tank operatively connected at one end to the powder table and at an opposing other end a portion of the build table, the telescopic build tank comprising at least two segments telescopically coupled relative to one another, each of the at least two segments comprising a set of engagement grooves located on an interior surface of the at least two segments and a set of engagement pins located on an exterior surface of the at least two segments, the set of engagement pins of one of the at least two segments is configured to engage with and travel along a corresponding set of engagement grooves of another of the at least two segments, and', 'each engagement groove of the set of engagement grooves comprises a first axially extending channel positioned along a single axis and having at least one closed end, the at least one closed end being configured to impede further translation of a ...

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Номер записи: 18
04-01-2018 дата публикации

METHOD FOR PRODUCING POWDER METAL COMPOSITIONS FOR WEAR AND TEMPERATURE RESISTANCE APPLICATIONS

Номер: US20180001387A1
Автор: "LEsperance Gilles", Beaulieu Philippe, Christopherson, Farthing Leslie John, JR. Denis B., Schoenwetter Todd
Принадлежит:

A powder metal composition for high wear and temperature applications is made by atomizing a melted iron based alloy including 3.0 to 7.0 wt. % carbon; 10.0 to 25.0 wt. % chromium; 1.0 to 5.0 wt. % tungsten; 3.5 to 7.0 wt. % vanadium; 1.0 to 5.0 wt. % molybdenum; not greater than 0.5 wt. % oxygen; and at least 40.0 wt. % iron. The high carbon content reduces the solubility of oxygen in the melt and thus lowers the oxygen content to a level below which would cause the carbide-forming elements to oxidize during atomization. The powder metal composition includes metal carbides in an amount of at least 15 vol. %. The microhardness of the powder metal composition increases with increasing amounts of carbon and is typically about 800 to 1,500 Hv50. 1. A method of forming a powder metal composition , comprising the steps of:providing a melted iron based alloy including 3.0 to 7.0 wt. % carbon, 10.0 to 25.0 wt. % chromium, 1.0 to 5.0 wt. % tungsten, 3.5 to 7.0 wt. % vanadium, 1.0 to 5.0 wt. % molybdenum, not greater than 0.5 wt. % oxygen, and at least 40.0 wt. % iron, based on the total weight of the melted iron based alloy; andatomizing the melted iron based alloy to provide atomized droplets of the iron based alloy.2. The method of including grinding the atomized droplets to remove oxide skin from the atomized droplets.3. The method of claim 1 , wherein the atomizing step includes forming metal carbides in an amount of at least 15 vol. % claim 1 , based on the total volume of the melted iron based alloy.4. The method of claim 3 , wherein the metal carbides are selected from the group consisting of: M8C7 claim 3 , M7C3 claim 3 , M6C claim 3 , wherein M is at least one metal atom and C is carbon.5. The method of claim 4 , wherein M8C7 is (V63Fe37)8C7; M7C3 is selected from the group consisting of: (Cr34Fe66)7C3 claim 4 , Cr3.5Fe3.5C3 claim 4 , and Cr4Fe3C3; and M6C is selected from the group consisting of: Mo3Fe3C claim 4 , Mo2Fe4C claim 4 , W3Fe3C claim 4 , and W2Fe4C.6. ...

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Номер записи: 19
04-01-2018 дата публикации

CARBON-COATED METAL POWDER, CONDUCTIVE PASTE CONTAINING CARBON-COATED METAL POWDER AND MULTILAYER ELECTRONIC COMPONENT USING SAME, AND METHOD FOR MANUFACTURING CARBON-COATED METAL POWDER

Номер: US20180001388A9
Автор: AKIMOTO Yuji, Iwasaki Mineto, Matsuo Akiko, TANAKA Hideki
Принадлежит:

This invention aims at providing a carbon-coated metal powder having few impurities, a narrower particle size distribution, and sintering properties particularly suitable as a conductive powder of a conductive paste for forming internal conductors in a ceramic multilayer electronic component obtained by co-firing multilayered ceramic sheets and internal conductor layers; a conductive paste containing the carbon-coated metal powder; a multilayer electronic component using the conductive paste; and a method for manufacturing the carbon-coated metal powder. The carbon-coated metal powder has specific properties in TMA or ESCA measurements. The carbon-coated metal powder can be obtained by melting and vaporizing a metallic raw material in a reaction vessel, conveying the generated metal vapor into a cooling tube and rapidly cooling the metal vapor by endothermically decomposing a carbon source supplied into the cooling tube, and forming a carbon coating film on metal nuclei surfaces in parallel with generation of the metal nuclei. 2. The carbon-coated metal powder according to claim 1 , wherein when the temperature width of 200° C. giving the Xis taken as not less than T° C. to not more than (T+200)° C. claim 1 , T° C.>400° C.3. The carbon-coated metal powder according to claim 1 , wherein X′ represented by X′ (%)=(X′/X)×100 is 30 or less claim 1 , when X′is a maximum shrinkage percentage in a range of from a room temperature to 400° C.4. The carbon-coated metal powder according to claim 1 , wherein the metal powder includes at least one of nickel and copper.5. A carbon-coated metal powder comprising a nickel-based powder consisting essentially of nickel only or comprising nickel as a main component claim 1 , and a carbon coating film that covers the nickel-based powder claim 1 , wherein{'sup': '2', 'an oxygen content in a weight proportion of an oxygen component to the carbon-coated metal powder of a unit weight is 1500 ppm or less per specific surface area of 1 m/g of ...

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Номер записи: 20
03-01-2019 дата публикации

Additive manufacturing material for powder rapid prototyping manufacturing

Номер: US20190001556A1
Автор: Hiroyuki Ibe, Junya Yamada
Принадлежит: Fujimi Inc

A molding material is provided which, despite containing a ceramic, enables efficient molding for producing high-density molded articles. The present invention provides a molding material to be used in powder laminate molding. This molding material contains a first powder which contains a ceramic, and a second powder which contains a metal. Further, the first powder and the second powder configure granulated particles. Ideally, the ratio of the content of the second powder to the total content of the first powder and the second powder is greater than 10 mass % and less than 90 mass %.

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Номер записи: 21
05-01-2017 дата публикации

AQUEOUS SLURRY FOR MAKING A POWDER OF HARD MATERIAL

Номер: US20170001916A1
Автор: MEHROTRA PANKAJ K., Myers Neal S., TRIVEDI Pankaj B.
Принадлежит:

An aqueous slurry that is useful upon being spray dried for the formation of a powder of hard material. The aqueous slurry includes starting powder components of the hard material. The slurry further includes an oxidation inhibitor, a surfactant in an amount between about 0.05 weight percent and about 0.30 weight percent of the weight of the starting powder components of the hard material, a binder, a defoamer and water in an between about 15 weight percent and about 30 weight percent of the weight of the weight of the starting powder components of the hard material. The aqueous slurry has a percent solids value that is between about 70 percent and about 85 percent. 1. A powder of hard material produced by the process comprising the steps of:spray drying an aqueous slurry comprising:starting powder components of the hard material;an oxidation inhibitor in an amount of about 0.2 weight percent to about 0.5 weight percent based on weight of the starting powder components of the hard material;a surfactant in an amount of about 0.05 weight percent to about 0.30 weight percent of the weight of the starting powder components of the hard material;a binder in an amount of about 1.2 weight percent to about 4.0 weight percent of the weight of the starting powder components of the hard material;a defoamer in an amount of about 0.05 weight percent to about 0.35 weight percent of the weight of the starting powder components of the hard material; andwater in an amount of about 15 weight percent and about 30 weight percent of the weight of the starting powder components of the hard material; andthe aqueous slurry having a percent solids of about 70 percent to about 85 percent wherein the percent solids comprises a quotient in percent of the weight of the starting powder components of the hard material divided by the sum of the weight of the starting powder components of the hard material and the weight of the water.2. The powder of hard material of claim 1 , wherein granule size ...

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Номер записи: 22
05-01-2017 дата публикации

HYDROGEN-ABSORBING ALLOY, ALLOY POWDER FOR ELECTRODE, NEGATIVE ELECTRODE FOR ALKALINE STORAGE BATTERY, AND ALKALINE STORAGE BATTERY

Номер: US20170002442A1
Автор: Kato Fumio, Ohyama Hideaki, Okabe Akiko
Принадлежит:

A hydrogen-absorbing alloy is provided in which an X-ray diffraction image generated by CuKα rays has at least one peak selected from (1) peak Psp1 at 2θ=32.25±0.15°, (2) peak Psp2 at 2θ=33.55±0.15°, and (3) peak Psp3 at 2θ=37.27±0.15°. 1. A hydrogen-absorbing alloy , wherein (1) a peak Psp1 at 2θ=32.25±0.15°;', '(2) a peak Psp2 at 2θ=33.55±0.15°; and', '(3) a peak Psp3 at 2θ=37.27±0.15°., 'an X-ray diffraction image generated by CuKα rays has at least one peak selected from2. The hydrogen-absorbing alloy according to having a crystal structure belonging to a space group of P63/mmc.3. The hydrogen-absorbing alloy according to claim 1 , whereina ratio I1/Imax of an intensity I1 of the peak Psp1 to an intensity Imax of a maximum peak Pmax of the X-ray diffraction image in a range of 2θ=10 to 90° is 0.01 or more.4. The hydrogen-absorbing alloy according to claim 1 , whereina ratio I2/Imax of an intensity I2 of the peak Psp2 to the intensity Imax of the maximum peak Pmax of the X-ray diffraction image in the range of 2θ=10 to 90° is 0.01 or more.5. The hydrogen-absorbing alloy according to claim 1 , whereina ratio I3/Imax of an intensity I3 of the peak Psp3 to the intensity Imax of the maximum peak Pmax of the X-ray diffraction image in the range of 2θ=10 to 90° is 0.01 or more.6. An alloy powder for an electrode claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the hydrogen-absorbing alloy according to .'}7. The alloy powder for the electrode according to claim 6 , wherein the element L is at least one element selected from a set consisting of elements in group 3 and elements in group 4 on a periodic table,', 'the element M is an alkaline-earth metal element,', 'the element E is at least one element selected from a set consisting of: transition metal elements in groups 5 to 11 on the periodic table; elements in group 12; elements in group 13 periods 2 to 5; elements in group 14 periods 3 to 5; N; P; and S, and', 'a molar ratio mE of the element E ...

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Номер записи: 23
05-01-2017 дата публикации

COATING MATERIAL

Номер: US20170002444A1
Автор: "OSULLIVAN MICHAEL", KATHREIN MARTIN
Принадлежит:

A coating material has Cr-rich regions having a Cr content >95% by mass which form Cr-containing particles. At least some of these particles are present in the form of aggregates or agglomerates, at least some have pores and have in the Cr-rich regions a mean nanohardness of ≦4 GPa and/or a mean surface area, measured by BET, >0.05 m/g. The coating material is particularly suitable for cold gas spraying. There is also described a process for the production of a coating, and to a coating produced by the process. 128-. (canceled)29. A coating material , comprising:Cr-rich regions having a Cr content >95% by mass, said Cr-rich regions forming Cr-containing particles; andwherein one or more of the following is true:at least some of said Cr-containing particles are present in the form of aggregates or agglomerates;at least some of said Cr-containing particles have pores formed therein;{'sub': 'HIT 0.005/5/1/5', 'said Cr-rich regions have a mean nanohardness of ≦4 GPa; or'}said Cr-containing particles have a mean surface area >0.05 m2/g, measured by way of Brunauer-Emmett-Teller.30. The coating material according to claim 29 , configured in powder form or granulate form.31. The coating material according to claim 29 , wherein at least some of said Cr-containing particles have a mean porosity claim 29 , determined by quantitative image analysis claim 29 , of >10% by volume.32. The coating material according to claim 29 , which comprises a material with a lower yield strength than Cr applied to a surface of said Cr-containing particles claim 29 , at least in regions thereof.33. The coating material according to claim 29 , wherein said Cr-containing particles have a mean particle size or granule size d50 claim 29 , measured by laser diffractometry claim 29 , of 5 μm Подробнее

Номер записи: 24
05-01-2017 дата публикации

Quench and temper corrosion resistant steel alloy

Номер: US20170002447A1
Автор: David E. Wert
Принадлежит: CRS Holdings LLC

A quench and temper steel alloy is disclosed having the following composition in weight percent. C 0.2-0.5 Mn 0.1-1.0 Si 0.1-1.2 Cr   9-14.5 Ni 2.0-5.5 Mo 1-2 Cu   0-1.0 Co 1-4 W 0.2 max. V 0.1-1.0 Ti up to 0.5 Nb   0-0.5 Ta   0-0.5 Al   0-0.25 Ce   0-0.01 La   0-0.01 The balance of the alloy is iron and the usual impurities including not more than about 0.01% phosphorus, not more than about 0.010% sulful, and not more than about 0.10% nitrogen. A quenched and tempered steel article made from this alloy is also disclosed. The steel article is characterized by a tensile strength of at least about 290 ksi, a fracture toughness (k Ic ) of at least about 65 ksi, good resistance to general corrosion, and good resistance to pitting corrosion.

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Номер записи: 25
05-01-2017 дата публикации

MAGNETIC COMPOSITE AND METHOD OF MANUFACTURING THE SAME

Номер: US20170004910A1
Автор: KIM In Gyu, Lee Seung Ho
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

A magnetic composite and a method of manufacturing the same are provided. The magnetic composite includes a magnetic material including magnetic material particles and a metal alloy. 1. A magnetic composite comprising:a magnetic material comprising magnetic material particles; anda metal alloy.2. The magnetic composite of claim 1 , wherein the metal alloy is a eutectic alloy.3. The magnetic composite of claim 2 , wherein the eutectic alloy is a binary claim 2 , ternary claim 2 , quaternary claim 2 , or quinary alloy.4. The magnetic composite of claim 2 , wherein the eutectic alloy is an alloy comprising one or more elements selected from a group consisting of indium (In) claim 2 , tin (Sn) claim 2 , cadmium (Cd) claim 2 , bismuth (Bi) claim 2 , silver (Ag) claim 2 , gold (Au) claim 2 , lead (Pb) claim 2 , zinc (Zn) claim 2 , copper (Cu) claim 2 , germanium (Ge) claim 2 , silicon (Si) claim 2 , aluminum (Al) claim 2 , magnesium (Mg) claim 2 , calcium (Ca) claim 2 , and antimony (Sb).5. The magnetic composite of claim 1 , wherein the magnetic material particles are single phase particles dispersed in a binder comprising the metal alloy.6. The magnetic composite of claim 1 , wherein the magnetic material comprises at least one selected from a group consisting of a magnetocaloric material claim 1 , a soft magnetic material claim 1 , and a ferromagnetic material.7. The magnetic composite of claim 1 , wherein the magnetic material is an alloy claim 1 , an oxide claim 1 , or a nitride containing at least one selected from a group consisting of iron (Fe) claim 1 , manganese (Mn) claim 1 , cobalt (Co) claim 1 , nickel (Ni) claim 1 , niobium (Nb) claim 1 , yttrium (Y) claim 1 , lanthanum (La) claim 1 , cerium (Ce) claim 1 , praseodymium (Pr) claim 1 , neodymium (Nd) claim 1 , promethium (Pm) claim 1 , samarium (Sm) claim 1 , europium (Eu) claim 1 , gadolinium (Gd) claim 1 , terbium (Tb) claim 1 , dysprosium (Dy) claim 1 , holmium (Ho) claim 1 , erbium (Er) claim 1 , thulium ( ...

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Номер записи: 26
12-01-2017 дата публикации

MOLDING MACHINE CYLINDER AND ITS PRODUCTION METHOD

Номер: US20170008077A1
Автор: FURUSHIMA Kiyoshi, UCHIDA Masatsugu
Принадлежит: HITACHI METALS, LTD.

A molding machine cylinder comprising a lining layer having a structure comprising 20-50% by area of tungsten carbide particles and 1-10% by area of tungsten-based metal carboboride particles in a nickel-based alloy matrix, and containing 1-7.5% by mass of Fe, can be produced by a centrifugal casting method comprising a first step of heating at higher than 1140° C. and lower than 1200° C., and a second step of heating at 1080-1140° C. after melting the raw material powder. 1. A molding machine cylinder comprising a lining layer formed on an inner surface of a steel cylinder by a centrifugal casting method;said lining layer having a structure comprising 20-50% by area of tungsten carbide particles and 1-10% by area of tungsten-based metal carboboride particles in a nickel-based alloy matrix; andsaid lining layer containing 1-7.5% by mass of Fe.2. The molding machine cylinder according to claim 1 , wherein said metal carboboride particles contain 0.5-4% by mass of C claim 1 , 0.5-6% by mass of B claim 1 , 65-85% by mass of W claim 1 , and 1-20% by mass of Ni.3. The molding machine cylinder according to claim 1 , wherein said metal carboboride particles have an average particle size of 0.5-5 μm.4. The molding machine cylinder according to claim 1 , wherein said tungsten carbide particles have an average particle size of 1.5-15 μm.5. The molding machine cylinder according to claim 1 , wherein said lining layer comprises 1.5-4% by mass of C claim 1 , 0.5-3.5% by mass of B claim 1 , 25-60% by mass of W claim 1 , 1-10% by mass of Cr claim 1 , 1-15% by mass of Co claim 1 , 0.1-3% by mass of Si claim 1 , 0.1-2% by mass of Mn claim 1 , and 0-5% by mass of Cu claim 1 , the balance being nickel and inevitable impurities.6. The molding machine cylinder according to claim 5 , wherein a matrix of said lining layer comprises 0.05-1% by mass of C claim 5 , 0.5-3% by mass of B claim 5 , 1-5% by mass of W claim 5 , 2-20% by mass of Cr claim 5 , 2-30% by mass of Co claim 5 , 0.2-5% by ...

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Номер записи: 27
12-01-2017 дата публикации

METHOD FOR PRODUCING NICKEL POWDER

Номер: US20170008083A1
Автор: Heguri Shin-ichi, IKEDA Osamu, Kudo Yohei, Ohara Hideki, Ozaki Yoshitomo, Yanagisawa Kazumichi, Yoneyama Tomoaki, ZHANG Junhao
Принадлежит:

Provided is a method for producing nickel powder from a nickel ammine sulfate complex solution, comprising treatment steps of: (1) a seed crystal production step of producing nickel powder having an average particle size of 0.1 to 5 μm; (2) a seed crystal addition step of adding the nickel powder obtained in the step (1) as seed crystals to form a mixed slurry; (3) a reduction step of forming a reduced slurry containing nickel powder formed by precipitation of a nickel component in the mixed slurry on the seed crystals; and (4) a growth step of performing solid-liquid separation to separate and recover the nickel powder as a solid phase component and then blowing hydrogen gas into a solution prepared by adding the nickel ammine sulfate complex solution to the recovered nickel powder to grow the nickel powder to form high purity nickel powder. 1. A method for producing nickel powder from a nickel ammine sulfate complex solution , the method comprising treatment steps of:(1) a seed crystal production step of mixing a nickel sulfate solution and hydrazine to produce nickel powder having an average particle size of 0.1 to 5 μm serving as seed crystals;(2) a seed crystal addition step of adding the nickel powder having an average particle size of 0.1 to 5 μm obtained in the step (1) as seed crystals to the nickel ammine sulfate complex solution to form a mixed slurry;(3) a reduction step of blowing hydrogen gas into the mixed slurry obtained in the seed crystal addition step (2) to form a reduced slurry containing nickel powder formed by precipitation of a nickel component in the mixed slurry on the seed crystals; and(4) a growth step of subjecting the reduced slurry obtained in the reduction step (3) to solid-liquid separation to separate and recover the nickel powder as a solid phase component and then blowing hydrogen gas into a solution prepared by adding the nickel ammine sulfate complex solution to the recovered nickel powder to grow the nickel powder to form high ...

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Номер записи: 28
12-01-2017 дата публикации

TITANIUM POWDER CONTAINING SOLID-SOLUTED NITROGEN, TITANIUM MATERIAL, AND METHOD FOR PRODUCING TITANIUM POWDER CONTAINING SOLID-SOLUTED NITROGEN

Номер: US20170008087A1
Автор: KONDOH Katsuyoshi
Принадлежит:

A method for producing titanium powder containing a solid-soluted nitorogen comprises the step of heating titanium powder comprised of titanium particles in a nitrogen-containing atmosphere to dissolve nitrogen atoms and form a solid solution of nitrogen atom in a matrix of the titanium particle. 1. A method for producing titanium powder containing a solid-soluted nitrogen , the method comprising:heating titanium powder comprising titanium particles in a nitrogen-containing atmosphere to dissolve nitrogen atoms and form a solid solution of nitrogen atoms in a matrix of the titanium particles.2. The method for producing the titanium powder containing the solid-soluted nitrogen according to claim 1 , whereina heating temperature for forming the solid solution of the nitrogen atoms in the matrix of the titanium particles is 400° C. or more and 800° C. or less.3. A titanium powder containing the solid-soluted nitrogen produced by the method according to whereinthe titanium particles have a nitrogen content of 0.1 mass % or more and 0.65 mass % or less.4. A titanium material formed with the titanium powder containing the solid-soluted nitrogen according to into a predetermined shape.5. The titanium material according to claim 4 , whereinthe titanium material is an extruded material formed by extrusion of the titanium powder containing the solid-soluted nitrogen,the extruded material has a nitrogen content of 0.1 mass % or more and 0.65 mass % or less, andthe extruded material has an elongation to failure of 10% or more.6. The method for producing the titanium powder containing the solid-soluted nitrogen according to claim 1 , wherein the titanium powder is heated for a predetermined period of time to cause the titanium particles in the matrix of titanium particles to have a nitrogen content of 0.1 mass % or more and 0.65 mass % or less claim 1 , the nitrogen content being based claim 1 , at least in part claim 1 , on the predetermined period of time. The present ...

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Номер записи: 29
12-01-2017 дата публикации

METHOD FOR PRODUCING SEED CRYSTALS USED FOR PRODUCING HYDROGEN-REDUCED NICKEL POWDER

Номер: US20170008089A1
Автор: Heguri Shin-ichi, IKEDA Osamu, Kudo Yohei, Ohara Hideki, Yoneyama Tomoaki
Принадлежит:

Provided are a method for producing nickel seed crystals that maintains and improves the quality of nickel powder at a low cost while suppressing production cost and environmental load in the production of nickel powder, by optimizing the amount of hydrazine added when producing fine nickel powder as seed crystals using hydrazine; and a method for producing nickel powder using the nickel seed crystals. The method for producing seed crystals used for producing hydrogen-reduced nickel powder, including adding, to an acid solution containing nickel ions that is maintained at a temperature of 50 to 60° C., hydrazine of 1 to 1.25 mol per 1 mol of a nickel component contained in the acid solution to produce the seed crystals. 1. A method for producing seed crystals used for producing hydrogen-reduced nickel powder , the method comprising:adding, to an acid solution containing nickel ions that is maintained at a temperature of 50 to 60° C., hydrazine of 1 to 1.25 mol per 1 mol of a nickel component contained in the acid solution to produce the seed crystals.2. The method for producing seed crystals used for producing hydrogen-reduced nickel powder according to claim 1 , wherein the addition of hydrazine to the acid solution containing nickel ions is performed by adding claim 1 , to the acid solution claim 1 , a solution formed by mixing a mixed solution of sodium hydroxide and a complexing agent with a hydrazine solution containing hydrazine of 1 to 1.25 mol per 1 mol of a nickel component contained in the acid solution.3. A method for producing hydrogen-reduced nickel powder in which the nickel powder is produced from an acid solution containing nickel ions through hydrogen reduction claim 1 , the method comprising:a hydrogen reduction step of adding a complexing agent and seed crystals to the acid solution containing nickel ions to form a complex solution containing nickel complex ions and seed crystals and then blowing hydrogen gas to reduce the nickel complex ions to ...

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Номер записи: 30
11-01-2018 дата публикации

GEAR, DECELERATION DEVICE, ROBOT, AND MOVING OBJECT

Номер: US20180009030A1
Автор: NAKAMURA Hidefumi
Принадлежит:

A gear includes a sintered body, in which Fe is contained as a principal component, Ni is contained in a proportion of 2 mass % or more and 20 mass % or less, Si is contained in a proportion of 0.3 mass % or more and 5.0 mass % or less, C is contained in a proportion of 0.005 mass % or more and 0.3 mass % or less, and one element selected from the group consisting of Ti, V, Y, Zr, Nb, Hf, and Ta is defined as a first element, that is contained in a proportion of 0.01 mass % or more and 0.7 mass % or less. 1. A gear , comprising a sintered body , in whichFe is contained as a principal component,Ni is contained in a proportion of 2 to 20 mass %,Si is contained in a proportion of 0.3 to 5.0 mass %,C is contained in a proportion of 0.005 to 0.3 mass %, anda first element is contained in a proportion of 0.01 to 0.7 mass %, anda second element is contained in a proportion of 0.01 to 0.7 mass %,wherein the first element is selected from the group consisting of Ti, V, Y, Zr, Nb, and Hf,and the second element is selected from the group consisting of Ti, V, Zr, Nb, Hf, and Ta, and(i) has a higher group number in the periodic table than the first element or(ii) has the same group number in the periodic table as the first element and a higher period number in the periodic table than the first element.2. The gear according to claim 1 , wherein when a ratio X1/X2 of a value X1 which is obtained by dividing the content E1 of the first element by the mass number of the first element to a value X2 which is obtained by dividing the content E2 of the second element by the mass number of the second element is 0.3 to 3.3. The gear according to claim 1 , wherein the sum of the content of the first element and the content of the second element is 0.05 to 0.8 mass %.4. The gear according to claim 1 , wherein the sintered body further contains Cr in a proportion of 9 to 19.5. The gear according to claim 1 , wherein the sintered body further contains Co in a proportion of 6 to 14.6. A ...

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Номер записи: 31
27-01-2022 дата публикации

UNDERCOOLED LIQUID METALLIC DROPLETS HAVING A PROTECTIVE SHELL

Номер: US20220023940A1
Автор: Tevis Ian, Thuo Martin
Принадлежит: SAFI-Tech

A droplet comprises a core including an alloy comprising a majority of a first metallic element and a minority of a second element, wherein the core is in a liquid state below a solidus temperature of the alloy. A shell is arranged to enclose the core and includes an exterior surface comprising a majority of the second element and a minority of the first metallic element, wherein the shell is in a solid state below the solidus temperature of the alloy. The alloy can comprise a solder material that can be used to form solder connections below a solidus temperature of the alloy. 1. A droplet comprising:a core including an alloy comprising a majority of a first metallic element and a minority of a second element, wherein the core is in a liquid state below a solidus temperature of the alloy; anda shell arranged to enclose the core and including an exterior surface comprising a majority of the second element and a minority of the first metallic element, wherein the shell is in a solid state below the solidus temperature of the alloy.2. The droplet of wherein the second element is a metal.3. The droplet of wherein the second element is a metalloid.4. The droplet of wherein the shell includes an innermost layer having a predominant concentration of the first metallic element and an outermost layer having a predominant concentration of the second element.5. The droplet of wherein the innermost layer has a greater E° than the outermost layer.6. The droplet of wherein the innermost layer has a lower E° than the outermost layer.7. The droplet of wherein the innermost layer and the outermost layer comprise oxides of the first metallic element and oxides of the second element.8. The droplet of further comprising a ligand coating on the exterior surface.9. A method of forming a droplet claim 1 , the method comprising:forming a liquid core of the droplet from an alloy including a first element, a second element and a third element;forming a solid shell around the liquid core, the ...

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Номер записи: 32
12-01-2017 дата публикации

Cu-Ga ALLOY SPUTTERING TARGET AND METHOD FOR PRODUCING SAME

Номер: US20170011895A1
Автор: Ishiyama Kouichi, Mori Satoru, Yoshida Yuuki
Принадлежит:

According to the present invention, a Cu—Ga alloy sputtering target which is a sintered body has a composition with 29.5 atom % to 43.0 atom % of Ga and a balance of Cu and inevitable impurities. A Cu—Ga alloy crystal particle in the sintered body has a structure in which γ phase particles are dispersed in a γ-phase crystal particle. A method for producing the sputtering target includes a step of performing normal pressure sintering by heating a molded body formed of a powder mixture of a pure Cu powder and a Cu—Ga alloy powder in a reducing atmosphere, and a step of cooling the obtained sintered body at a cooling rate of 0.1° C./min to 1.0° C./min, at a temperature having a range of 450° C. to 650° C. 1. A Cu—Ga alloy sputtering target , whereinthe Cu—Ga alloy sputtering target is a sintered body which has a composition with 29.5 atom % to 43.0 atom % of Ga and a balance of Cu and inevitable impurities, and{'sub': '1', 'a Cu—Ga alloy crystal particle in the sintered body has a structure in which γ phase particles are dispersed in a γ-phase crystal particle.'}2. The Cu—Ga alloy sputtering target according to claim 1 , wherein{'sub': '1', 'an average number of the γ phase particles in one γcrystal particle is 6 to 36, and'}{'sub': '1', 'an average particle diameter of γphase particles is 15.0 μm to 75.0 μm.'}3. The Cu—Ga alloy sputtering target according to claim 1 , whereinan amount of oxygen in the sintered body is equal to or less than 200 mass ppm.4. The Cu—Ga alloy sputtering target according to claim 1 , whereinthe sintered body further contains 0.05 atom % to 10.0 atom % of Na, anda Na compound phase is dispersed in the sintered body.5. The Cu—Ga alloy sputtering target according to claim 4 , wherein{'sub': 2', '2', '3', '6, 'the Na compound phase is formed of at least one of NaF, NaS, NaSe, and NaAlF.'}6. A method for producing the Cu—Ga alloy sputtering target according to claim 1 , the method comprising:a step of performing normal pressure sintering by ...

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Номер записи: 33
14-01-2016 дата публикации

Li-Si-Sn ALLOY, ANODE MATERIAL OF THE ALLOY, AND BATTERIES INCLUDING SAME

Номер: US20160013499A1
Автор: SWIFT Geoffrey
Принадлежит: EAGLEPICHER TECHNOLOGIES, LLC

An alloy includes lithium, silicon and tin. An anode may be formed of an anode material containing the alloy of lithium, silicon and tin. The anode material may include an electrolyte. The anode material may be a pressed powder pellet that is solid at ambient temperature. A battery, for example, a thermal battery, can contain an electrolyte-separator, a cathode, and/or an anode with the alloy of lithium, tin and silicon. The anode formed of the alloy consisting of lithium, tin and silicon can have a melting point from about 500° C. to about 600° C. or higher making it suitable for use in a thermal battery. 1. An alloy comprising:at least lithium, silicon and tin, and free lithium mixed with the alloy.2. The alloy according to claim 1 , wherein the alloy is in the form of a powder.3. A composite material comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the alloy according to , and free lithium.'}4. The alloy according to claim 1 , wherein the alloy maintains a solid state until at least 500° C.5. The alloy according to claim 1 , wherein the alloy comprises:at least about 40 wt % of lithium,at least about 25 wt % of silicon, andat least about 10 wt % of tin.6. The alloy according to claim 1 , wherein the alloy comprises:about 40 wt % to about 45 wt % of lithium,about 25 wt % to about 50 wt % of silicon, andabout 10 wt % to about 35 wt % of tin.7. An anode material for use in batteries claim 1 , the anode material comprising:an alloy including lithium, silicon and tin, and free lithium mixed with the alloy.8. The anode material according to claim 7 , further comprising:free lithium forming a composite with the alloy of lithium, silicon and tin.9. The anode material according to claim 7 , further comprising an electrolyte mixed with the alloy.10. The anode material according to claim 9 , wherein the anode material includes:about 20 wt % of the electrolyte, andabout 80 wt % of the alloy.11. The anode material according to claim 7 , wherein the alloy is in ...

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Номер записи: 34
03-02-2022 дата публикации

ALUMINUM ALLOY ARTICLES

Номер: US20220032375A1
Автор: Bianco Robert, Karlen Eric, Mironets Sergey, Wentland William Louis
Принадлежит:

An aluminum alloy comprising greater than 2.00 and less than 4.00 wt. % cerium, 0.25-3.00 wt. % silicon, 0.25-0.75 wt. % magnesium, 0-0.75 wt. % iron, 0-0.05 wt. % other alloying elements, and the balance of aluminum, based on the total weight of the aluminum alloy aluminum alloy. 1. An aluminum alloy comprising greater than 2.00 and less than 4.00 wt. % cerium, 0.25-3.00 wt. % silicon, 0.25-0.75 wt. % magnesium, 0-0.75 wt. % iron, 0-0.05 wt. % other alloying elements, and the balance of aluminum, based on the total weight of the aluminum alloy aluminum alloy The present application is a division of U.S. patent application Ser. No. 15/607,086, filed May 26, 2017, the entire contents of which are incorporated herein by reference.This disclosure relates to additive manufacturing of aluminum articles.Additive manufacturing technologies have been used and proposed for use for fabricating various types of articles from various types of materials. Broadly viewed, additive manufacturing can include any manufacturing process that incrementally adds material to an assembly during fabrication, and has been around in one form or another for many years. Modern additive manufacturing techniques, however, have been blended with three-dimensional computer imaging and modeling in various types to produce shapes and physical features on articles that are not readily produced with conventional molding, shaping, or machining techniques. Such techniques were initially developed using polymer compositions that are fusible or polymerizable in response to a controllable source of light or radiation such as a laser. Three-dimensional articles can be fabricated a layer at a time based on data from a corresponding layer of a three-dimensional computer model, which is generally known as stereolithography. With these techniques, a polymer powder or polymerizable liquid polymer composition is exposed to a source of energy such as a laser to fuse a thermoplastic polymer powder by heating it to a ...

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Номер записи: 35
19-01-2017 дата публикации

METHOD FOR REINFORCING METAL MATERIAL BY MEANS OF GRAPHENE

Номер: US20170014908A1
Автор: Dai Shenglong, Hong Qihu, Lin Zuoming, Liu Dabo, Yan Shaojiu, Yang Cheng
Принадлежит: AVIC BEIJING INSTITUTE OF AERONAUTICAL MATERIALS

A method of reinforcing a metallic material includes adding graphene to an alcohol solution; subjecting the alcohol solution containing graphene to sonication; mixing a metal powder with the alcohol solution containing graphene; milling the metal powder and alcohol solution containing graphene mixture; drying the metal powder and alcohol solution containing graphene mixture to form a composite powder; subjecting the composite powder to a densification process followed by a hot isostatic pressing treatment to form a composite material; and molding the composite material by hot extrusion. 1. A method of reinforcing a metallic material , comprising:adding graphene to an alcohol solution;subjecting the alcohol solution containing graphene to sonication;mixing a metal powder with the alcohol solution containing graphene;milling the metal powder and alcohol solution containing graphene mixture;drying the metal powder and alcohol solution containing graphene mixture to form a composite powder;subjecting the composite powder to a densification process followed by a hot isostatic pressing treatment to form a composite material; andmolding the composite material by hot extrusion.2. The method of claim 1 , wherein the alcohol solution containing graphene is sonicated for about 30 minutes.3. The method of claim 1 , wherein a ratio of mass of metal powder added to a volume of the alcohol containing graphene solution is about 10:1 to 0.5:1.4. The method of claim 1 , wherein the densification process comprises:loading the composite powder into a sheath,vacuumizing the composite powder in the sheath; and{'sup': '−3', 'sealing the sheath by welding with the composite powder inside when the pressure reaches 1.0×10Pa.'}5. The method of claim 1 , wherein the hot isostatic pressing treatment is performed at 480° C. and 110 MPa for two hours.6. The method of claim 1 , wherein the molding by hot extrusion occurs at a temperature of 440° C. to 480° C. The present invention is a method of ...

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Номер записи: 36
19-01-2017 дата публикации

Stable undercooled metallic particles for engineering at ambient conditions

Номер: US20170014958A1
Автор: CINAR Simge, Tevis Ian D., Thou Martin
Принадлежит:

Undercooled liquid metallic core-shell particles, whose core is stable against solidification at ambient conditions, i.e. under near ambient temperature and pressure conditions, are used to join or repair metallic non-particulate components. The undercooled-shell particles in the form of nano-size or micro-size particles comprise an undercooled stable liquid metallic core encapsulated inside an outer shell, which can comprise an oxide or other stabilizer shell typically formed in-situ on the undercooled liquid metallic core. The shell is ruptured to release the liquid phase core material to join or repair a component(s). 1. A method of joining under ambient conditions , comprising using one or more undercooled liquid metallic core-shell particles in a manner to join one or more metallic or nonmetallic components by rupturing the outer shell of the undercooled core-shell particles to release the undercooled liquid metallic core material to contact the one or more components and solidify.2. The method wherein the liquid metallic material of the undercooled particle core has a melting point Tin the range of 26 to 900° C.3. The method of wherein the chemistry of the one or more metallic components is the same or different from the chemistry of the liquid metallic material of the core.4. The method of for joining said one or more metallic or nonmetallic components that comprise non-particulate material.5. The method of for joining said one or more metallic or nonmetallic components that comprise one or more particulates.6. The method of wherein the one or more particulates comprise other of said liquid metallic core-shell particles that are joined together.7. The method of wherein the particulates are placed in a mold or a container and their outer shells then are ruptured to join the particulates in the mold or container.8. The method of wherein the one or more core-shell particles is/are assembled as a layer between metallic or non-metallic components to be joined and ...

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Номер записи: 37
15-01-2015 дата публикации

POWDER METAL WITH SOLID LUBRICANT AND POWDER METAL SCROLL COMPRESSOR MADE THEREFROM

Номер: US20150017043A1
Автор: Donaldson Ian William, Gurosik John David S.
Принадлежит: GKN Sinter Metals, LLC

A powder metal formulation includes a solid lubricant and is particularly useful for the production of powder metal scroll compressors. 1. A powder metal scroll compressor comprising:a hub and a scroll adjoined to one another;a powder metal forming at least a portion of the powder metal scroll compressor including the scroll, the powder metal including iron powder, carbon in an amount of less than 0.9% by weight of the powder metal, and a solid lubricant in the powder metal.2. The powder metal scroll compressor of claim 1 , wherein the iron powder and solid lubricant are admixed with one another prior to compaction and sintering of the powder metal scroll compressor.3. The powder metal scroll compressor of claim 1 , wherein the solid lubricant is 0.25% to 3.0% by weight of the powder metal and the powder metal includes iron powder claim 1 , carbon claim 1 , the solid lubricant and is substantially free of other constituents.4. The powder metal scroll compressor of claim 1 , wherein the powder metal further includes copper powder in an amount of less than 3.0% by weight of the powder metal.5. The powder metal scroll compressor of claim 4 , wherein the iron powder claim 4 , the copper powder claim 4 , and the solid lubricant are admixed with one another prior to compaction and sintering of the powder metal scroll compressor and the powder metal includes iron powder claim 4 , carbon claim 4 , copper powder claim 4 , and the solid lubricant and is substantially free of other constituents.6. The powder metal scroll compressor of claim 4 , wherein the copper powder is elemental copper powder.7. The powder metal scroll compressor of claim 1 , wherein the solid lubricant is talc (MgSiO(OH)).8. The powder metal scroll compressor of claim 7 , wherein the talc has a nominal 15 to 25 micron mean particle size (d50).9. The powder metal scroll compressor of claim 1 , wherein the solid lubricant is hexagonal boron nitride (BN).10. The powder metal scroll compressor of claim 9 , ...

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Номер записи: 38
15-01-2015 дата публикации

DIRECT DETECTION OF DISEASE BIOMARKERS IN CLINICAL SPECIMENS USING CATIONIC NANOPARTICLE-BASED ASSAYS & VERSATILE AND GREEN METHODS FOR SYNTHESIS OF ANISOTROPIC SILVER NANOSTRUCTURES

Номер: US20150017258A1
Автор: Azzazy Hassan Mohamed El-Said, Eid Kamel Abdelmenem Mohamed, Guirgis Bassem Samy Shenouda, Shawky Abduo Sherif Mohamed
Принадлежит: AMERICAN UNIVERSITY OF CAIRO (AUC)

A gold nanoparticle-based assay for the detection of a target molecule, such as Hepatitis C Virus (HCV) RNA in serum samples, that uses positively charged gold nanoparticles (AuNPs) in solution based format. The assay has been tested on 74 serum clinical samples suspected of containing HCV RNA, with 48 and 38 positive and negative samples respectively. The developed assay has a specificity and sensitivity of 96.5% and 92.6% respectively. The results obtained were confirmed by Real-Time PCR, and a concordance of 100% for the negative samples and 89% for the positive samples has been obtained between the Real-Time PCR and the developed AuNPs based assay. Also, a purification method for the HCV RNA has been developed using HCV RNA specific probe conjugated to homemade silica nanoparticles. These silica nanoparticles have been synthesized by modified Stober method. This purification method enhanced the specificity of the developed AuNPs assay. The method can detect a target molecule, such as HCV RNA in serum, by employing modified silica nanoparticles to capture the target from a biological sample followed by detection of the captured target molecule using positively charged AuNPs. The assay is simple, cheap, sensitive and specific. Another aspect of the invention is anisotropic silver nanoparticles and methods of their use. 1. A method for detecting a nucleic acid or a protein comprising:contacting a sample suspected of containing a target molecule with positively charged gold and/or silver nanoparticles,determining the aggregation of nanoparticles after contacting them with the sample, anddetecting the target molecule in the sample when the nanoparticles aggregate in comparison with a control sample that does not contain the target molecule to be detected;wherein aggregated nanoparticles are detected by a blue color and non-aggregated gold nanoparticles by a red color.2. The method of that comprises detecting a target molecule that is DNA.3. The method of comprising ...

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Номер записи: 39
15-01-2015 дата публикации

SILVER POWDER AND METHOD FOR PRODUCING SAME

Номер: US20150017465A1
Автор: ISHIKAWA Shintaro, ITO Kenya, MURAKAMI Akihiro, Nishimoto Masamu, Okabe Yoshihiro, Okada Shuuji
Принадлежит:

The present invention provides a method for producing a silver powder, the method being capable of producing a silver powder with high productivity and at low cost, the silver powder having an average particle diameter of 0.3 to 2.0 μm and a narrow particle size distribution, and provides a silver powder produced by the production method. According to the present invention, the method for producing a silver powder includes: quantitatively and continuously supplying each of a silver solution containing a silver complex and a reductant solution to a flow path; and quantitatively and continuously reducing a silver complex in a reaction solution obtained by mixing the silver solution with the reductant solution in the flow path, wherein the reaction solution is made to contain a dispersant, and also a silver concentration in the reaction solution is adjusted to be in a range of 5 to 75 g/L. 1. A method for producing a silver powder , the method comprising:quantitatively and continuously supplying each of a silver solution containing a silver complex and a reductant solution to a flow path; andquantitatively and continuously reducing a silver complex in a reaction solution obtained by mixing said silver solution with said reductant solution in the flow path;wherein the above-mentioned reaction solution is made to contain a dispersant, and a silver concentration in the reaction solution is adjusted to be in a range of 5 to 75 g/L.2. The method for producing a silver powder according to claim 1 , wherein a particle size of silver particles formed by reduction is controlled by adjusting a silver concentration in the above-mentioned reaction solution.3. The method for producing a silver powder according to claim 1 , wherein the above-mentioned silver solution is obtained by dissolving silver chloride in ammonia water.4. The method for producing a silver powder according to claim 1 , wherein the above-mentioned reductant is ascorbic acid claim 1 , and a mixing ratio of said ...

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Номер записи: 40
16-01-2020 дата публикации

ADDITIVE MANUFACTURING METHOD

Номер: US20200016825A1
Автор: LIN Pai-Chen
Принадлежит:

An additive manufacturing method includes: providing a metal substrate; pressing a plurality of first metal parts to weld the same on the metal substrate one by one using a welding unit through friction welding so as to form a first stacked layer laminated on the metal substrate; pressing a plurality of second metal parts to weld the same on the first stacked layer one by one using the welding unit through friction welding so as to form a second stacked layer laminated on the first stacked layer; and repeating formation of the second stacked layer until a required amount of the second stacked layers are additively laminated on the first stacked layer to obtain a final three-dimensional (3D) article. 1. An additive manufacturing method , comprising:(a) providing a metal substrate for disposing a plurality of first metal parts;(b) disposing one of the first metal parts on the metal substrate using a feeding unit movable relative to the metal substrate;(c) pressing the one of the first metal parts using a welding unit that has a longitudinal axis and rotates about the longitudinal axis to make a pushing surface of the welding unit abut against a pressured surface of the one of the first metal parts opposite to the metal substrate and the one of the first metal parts be welded on the metal substrate through plastic deformation of a first joint zone between the metal substrate and the one of the first metal parts which results from heat generated by friction between the pressured surface of the one of the first metal parts and the pushing surface of the welding unit;(d) repeating Steps (b) and (c) until a remainder of the first metal parts are welded on the metal substrate to form a first stacked layer laminated on the metal substrate;(e) disposing one of second metal parts on the first stacked layer using the feeding unit;(f) pressing the one of the second metal parts using the welding unit rotating about the longitudinal axis to make the pushing surface of the welding ...

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Номер записи: 41
19-01-2017 дата публикации

R-T-B BASED SINTERED MAGNET AND METHOD FOR PRODUCING SAME

Номер: US20170018342A1
Автор: FUKAGAWA Tomoki, Furusawa Daisuke, NISHIUCHI Takeshi, NOZAWA Noriyuki, SAKASHITA Shinichiroh
Принадлежит: HITACHI METALS, LTD.

An R-T-B based sintered magnet has a composition represented by the following formula (1) which satisfies the following inequality expressions (2) to (9): 1. An R-T-B based sintered magnet , wherein the composition represented by the following formula (1) satisfies the following inequality expressions (2) to (9):{'br': None, 'i': u', 'w', 'x', 'z', 'v', 'q', 'g', 'j, 'RBGaAlCoTiFeM\u2003\u2003(1)'} {'br': None, 'i': 'u≦', '0≦32.0\u2003\u2003(2)'}, '(R is at least one of rare-earth elements and indispensably includes Nd, M is an element except for R, B, Ga, Al, Co, Ti, and Fe, and u, w, x, z, v, q, g, and j are expressed in terms of % by mass)'} [{'br': None, 'i': 'w≦', '0.93≦1.00\u2003\u2003(3)'}, {'br': None, 'i': 'x≦', '0.3≦0.8\u2003\u2003(4)'}, {'br': None, 'i': 'z≦', '0.05≦0.5\u2003\u2003(5)'}, {'br': None, 'i': 'v≦', '0≦3.0\u2003\u2003(6)'}, {'br': None, 'i': 'q≦', '0.15≦0.28\u2003\u2003(7)'}, {'br': None, 'i': 'g≦', '60.42≦69.57\u2003\u2003(8)'}, {'br': None, 'i': 'j≦', '0≦2.0\u2003\u2003(9)'}], '(heavy rare-earth elements RH account for 10% by mass or less of the R-T-B based sintered magnet)'} [{'br': None, 'i': g′+v′+z', 'w′−', 'q, '0.06≦(′)−(14×(2×′))\u2003\u2003(A)'}, {'br': None, 'i': g′+v′+z', 'w′−q, '0.10≧(′)−(14×(′))\u2003\u2003(B)'}], 'and, when the value obtained by dividing g by the atomic weight of Fe is g′, the value obtained by dividing v by the atomic weight of Co is v′, the value obtained by dividing z by the atomic weight of Al is z′, the value obtained by dividing w by the atomic weight of B is w′, and the value obtained by dividing q by the atomic weight of Ti is q′, the following inequality expressions (A) and (B) are satisfied2. The R-T-B based sintered magnet according to claim 1 , wherein 0.18≦q≦0.28.3. The R-T-B based sintered magnet according to claim 1 , which has a structure in which:{'sub': 2', '14, 'an RTB compound (R is at least one of rare-earth elements and indispensably includes Nd, and T is at least one of transition metal ...

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Номер записи: 42
21-01-2016 дата публикации

METAL POWDER, METHOD FOR PRODUCING THE SAME, CONDUCTIVE PASTE INCLUDING METAL POWDER, AND MULTILAYER CERAMIC ELECTRONIC COMPONENT

Номер: US20160020023A1
Автор: NAKANISHI Toru, OGATA Naoaki
Принадлежит:

A method for producing a metal powder that includes a first step of uniformly arranging a metal compound on a metal particle, and a second step of converting the metal compound uniformly arranged on the metal particle into a complex metal compound. In the first step, a solution that contains at least one metal element and at least one group 4 element different from the metal element is prepared, the solution being adjusted to have a pH of 5 or less. The prepared solution is mixed with a reductant solution to coprecipitate the metal and the metal compound, thereby producing a slurry that contains a metal powder containing the metal combined with the metal compound. In the second step, a solution or a powder containing at least one second metal element is added to the slurry to convert the metal compound into the complex metal compound. 1. A method for producing a metal powder , the method comprising:preparing a first solution that contains at least one first metal element and at least one group 4 element different from the first metal element;adjusting the solution to have a pH of 5 or less;mixing the first solution with a reductant solution to coprecipitate a metal and a metal compound containing the at least one group 4 element to produce a slurry that contains the metal combined with the metal compound; andadding at least one second metal element to the slurry to convert the metal compound into a complex metal compound to produce a metal powder containing the metal combined with the complex metal compound.2. The method for producing a metal powder according to claim 1 , wherein the steps of preparing the first solution claim 1 , adjusting the solution to have a pH of 5 or less claim 1 , and mixing the first solution with the reductant solution are carried out in a first step claim 1 , and the step of adding the at least one second metal element to the slurry is carried out in a second step.3. The method for producing a metal powder according to claim 1 , further ...

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Номер записи: 43
03-02-2022 дата публикации

METAL MAGNETIC POWDER AND METHOD FOR MANUFACTURING SAME, AS WELL AS COIL COMPONENT AND CIRCUIT BOARD

Номер: US20220037067A1
Автор: KASHIWA Tomoo, ORIMO Yoko
Принадлежит:

A metal magnetic powder is constituted by metal magnetic grains that each include: a metal phase where the mass percentage of Fe at its center part is lower than that at its contour part; and an oxide film covering the metal phase so as to allow the magnetic body resistant to magnetic saturation and low in iron loss. 1. A metal magnetic powder constituted by metal magnetic grains , each comprising:a metal phase where a mass percentage of Fe at its center part is lower than that at its contour part; andan oxide film covering the metal phase.2. The metal magnetic powder according to claim 1 , wherein the percentage of Fe at the contour part is 98 percent by mass or higher.3. The metal magnetic powder according to claim 1 , wherein the percentage of Fe at the center part is lower by at least 5 percent by mass than that at the contour part.4. The metal magnetic powder according to claim 1 , wherein the percentage of Fe at the center part is 80 to 85 percent by mass.5. The metal magnetic powder according to claim 1 , wherein the metal phase further contains at least one type of element selected from Si claim 1 , Cr claim 1 , Al claim 1 , Ti claim 1 , Zr claim 1 , and Mg.6. The metal magnetic powder according to claim 5 , wherein a total of percentages of Si claim 5 , Cr claim 5 , Al claim 5 , Ti claim 5 , Zr claim 5 , and Mg at the center part is higher by at least 5 percent by mass than a total of corresponding percentages at the contour part.7. The metal magnetic powder according to claim 6 , wherein the percentages of Si claim 6 , Cr claim 6 , Al claim 6 , Ti claim 6 , Zr claim 6 , and Mg at the center part amount to at least 10 percent by mass in total.8. A method for manufacturing a metal magnetic powder claim 6 , including:preparing a material powder for metal magnetic material whose Fe content is 90 to 99 percent by mass and which contains at least one type of metal element that oxidizes more easily than Fe in the air;placing the material powder in an atmosphere ...

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Номер записи: 44
18-01-2018 дата публикации

ALLOY POWDER FOR ELECTRODES, NEGATIVE ELECTRODE FOR NICKEL-HYDROGEN STORAGE BATTERIES USING SAME AND NICKEL-HYDROGEN STORAGE BATTERY

Номер: US20180019469A1
Автор: AKIBA ETSUO, Kato Fumio, LI HAI-WEN, Ohyama Hideaki, WANG Guoliang
Принадлежит:

Alloy powder for electrodes that includes particles of a hydrogen-absorbing alloy having an ABtype crystal structure. The hydrogen-absorbing alloy includes first elements that are located in an A site in the crystal structure and include Zr, and second elements that are located in a B site and include Ni and. Mn. The hydrogen-absorbing alloy includes a plurality of alloy phases having different Zr concentrations. In each of the alloy phases, the percentage of Zr in the first elements exceeds 70 atom %. 1. Alloy powder for electrodes , comprising{'sub': '2', 'claim-text': [ first elements located in an A site in the crystal structure and including Zr; and', 'second elements located in a B site in the crystal structure and including Ni and Mn,, 'the hydrogen-absorbing alloy includes, 'the hydrogen-absorbing alloy includes a plurality of alloy phases having different Zr concentrations, and', 'in each of the plurality of alloy phases, a percentage of Zr in the first elements exceeds 70 atom %., 'particles of a hydrogen-absorbing alloy having an ABtype crystal structure, wherein'}2. The alloy powder for electrodes according to claim 1 , whereinthe plurality of alloy phases include a main phase and an auxiliary phase formed in the main phase.3. The alloy powder for electrodes according to claim 2 , whereinin the main phase, an atom ratio (B/A ratio) of the second elements to the first elements is 1.90 to 2.40 inclusive.4. The alloy powder for electrodes according to claim 2 , wherein{'sub': zp', 'zs', 'zp', 'zs, 'a percentage Rof Zr in the first elements in the main phase and a percentage Rof Zr in the first elements in the auxiliary phase satisfy 1.00 Подробнее

Номер записи: 45
28-01-2016 дата публикации

TURBULATING COOLING STRUCTURES

Номер: US20160023272A1
Автор: JR. Dominic J., Mongillo, Propheter-Hinckley Tracy A., Xu JinQuan
Принадлежит:

In a first embodiment, a hollow gas turbine engine workpiece comprises first and second walls formed via additive manufacturing, and a cooling passage defined between the first and second walls by a surface of the first and second walls having arithmetic average surface roughness of at least 100 μin (0.0025 mm). In a second embodiment, a method of manufacture of a gas turbine engine component comprises depositing successive layers of pulverant material via additive manufacturing to form first and second walls defining a cooling passage therebetween, and loading a grain size of the pulverant material to produce lattice convective cooling design networks of various size and proportions with each having a range of relative roughness values, 0.10<ε/Dh<0.50 to achieve optimal thermal cooling performance along the cooling passage. 1. A hollow gas turbine engine workpiece comprising:a first wall;a second wall; anda cooling passage defined between the first wall and the second wall by surfaces of the first and second walls having a relative roughness ε/Dh between 0.10 and 0.50.2. The hollow gas turbine engine workpiece of claim 1 , wherein the relative roughness ε/Dh is at most 0.30.3. The hollow gas turbine engine workpiece of claim 1 , wherein the relative roughness ε/Dh is at least 0.14.4. The hollow gas turbine engine workpiece of claim 1 , wherein the hollow gas turbine engine workpiece is a gas turbine vane claim 1 , blade claim 1 , air seal claim 1 , or panel claim 1 , and the cooling passage is a vascular cooling passage.5. The hollow gas turbine engine workpiece of claim 1 , wherein the arithmetic average surface roughness is between 100 μin (0.0025 mm) and 1000 μin (0.0254 mm).6. The hollow gas turbine engine workpiece of claim 5 , wherein the arithmetic average surface roughness is less than 600 μin (0.0152 mm).7. The hollow gas turbine engine workpiece of claim 1 , wherein the cooling passage has a minimum passage dimension less than 0.15 inches (3.8 mm).8. The ...

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Номер записи: 46
26-01-2017 дата публикации

HIGH TEMPERATURE NICKEL-BASE SUPERALLOY FOR USE IN POWDER BASED MANUFACTURING PROCESS

Номер: US20170021415A1
Автор: Etter Thomas, Künzler Andreas, MEIDANI Hossein
Принадлежит: ANSALDO ENERGIA IP UK LIMITED

The application relates to the technology of producing three-dimensional articles by means of powder-based additive manufacturing, such as selective laser melting or electron beam melting. Especially, it refers to a Nickel-base superalloy powder on basis of Hastelloy X consisting of the following chemical composition: 20.5-23.0 Cr, 17.0-20.0 Fe, 8.0-10.0 Mo, 0.50-2.50 Co, 0.20-1.00 W, 0.04-0.10 C, 0-0.5 Si, 0-0.5 Mn, 0-0.008 B, remainder Ni and unavoidable residual elements and wherein the powder has a powder size distribution between 10 and 100 μm and a spherical morphology and the ratio of the content of alloying elements C/B is at least 5 or more. 1. Nickel-base superalloy powder for additive manufacturing of three-dimensional articles consisting of the following chemical composition (in wt.-%): 20.5-23.0 Cr , 17.0-20.0 Fe , 8.0-10.0 Mo , 0.50-2.50 Co , 0.20-1.00 W , 0.04-0.10 C , 0-0.5 Si , 0-0.5 Mn , 0-0.008 B , remainder Ni and unavoidable residual elements and wherein the powder has a powder size distribution between 10 and 100 μm and a spherical morphology and the ratio of a content (in wt.-%) of alloying elements C/B is at least 5 or more.2. Nickel-base superalloy powder according to claim 1 , wherein the C content of the powder is 0.05-0.09 wt.%.3. Nickel-base superalloy powder according to claim 2 , wherein the C content is 0.05-0.08 wt.-%.4. Nickel-base superalloy powder according to claim 1 , wherein the Si content is max. 0.2 wt.-%.5. Nickel-base superalloy powder according to claim 4 , wherein the Si content is max. 0.1 wt.-%.6. Nickel-base superalloy powder according to claim 1 , wherein the Mn content is max. 0.3 wt.-%.7. Nickel-base superalloy powder according to claim 6 , wherein the Mn content is max.0.1 wt.-%.8. Nickel-base superalloy powder according to claim 1 , wherein the B content is 0.002-0.008 wt.-%.9. Nickel-base superalloy powder according to claim 1 , wherein the B content is 5. 0.007 wt.-%.10. Nickel-base superalloy powder according ...

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Номер записи: 47
26-01-2017 дата публикации

GAMMA PRIME PRECIPITATION STRENGTHENED NICKEL-BASE SUPERALLOY FOR USE IN POWDER BASED ADDITIVE MANUFACTURING PROCESS

Номер: US20170021453A1
Автор: ENGELI Roman, Etter Thomas, MEIDANI Hossein
Принадлежит: General Electric Technology GmbH

The application relates to the technology of producing three-dimensional articles by powder-based additive manufacturing, such as selective laser melting or electron beam melting. Especially, it refers to a high oxidation resistant and high gamma-prime precipitation containing Ni-base super alloy powder on basis of IN738LC with a modified chemical composition. Such powder has the following chemical composition (in wt.-%): 15.7-16.3 Cr, 8.0-9.0 Co, 1.5-2.0 Mo, 2.4-2.8 W, 1.5-2.0 Ta, 3.2-3.7 Al, 2.2-3.7 Ti, 0.6-1.1 Nb, 0.09-0.13 C, 0.007-0.012 B, 0.0045≦Zr<0.03, 0.001≦Si<0.03, remainder Ni and unavoidable residual elements and in addition a powder size distribution between 10 and 100 μm and a spherical morphology. As an advantage nearly crack free three-dimensional articles can be produced with more productive process parameters and without complicated and time consuming variations of the addive manufacturing processes (e.g. pre-heating) and/or post processing (e.g. hot isostatic pressing HIP). 1. Nickel-base superalloy powder comprising: a high gamma-prime precipitation content for additive manufacturing of three-dimensional articles wherein the powder has the following chemical composition (in wt.-%): 15.7-16.3 Cr , 8.0-9.0 Co , 1.5-2.0 Mo , 2.4-2.8 W , 1.5-2.0 Ta , 3.2-3.7 Al , 2.2-3.7 Ti , 0.6-1.1 Nb , 0.09-0.13 C , 0.007-0.012 B , 0.0045≦Zr<0.03 , 0.001≦Si<0.03 , remainder Ni and unavoidable residual elements and wherein the powder has a powder size distribution between 10 and 100 μm and a spherical morphology.2. Nickel-base superalloy powder according to claim 1 , wherein the Si content is max. 0.02 wt.-%.3. Nickel-base superalloy powder according to claim 1 , wherein the Zr content is max. 0.02 wt.-%.4. SLM process for additive manufacturing of three-dimensional articles with a Nickel-base superalloy powder containing a high gamma-prime precipitation content for additive manufacturing of three-dimensional articles wherein the powder has the following chemical ...

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Номер записи: 48
25-01-2018 дата публикации

METHOD OF PREPARING TUNGSTEN METAL MATERIAL AND TUNGSTEN TARGET WITH HIGH PURITY

Номер: US20180021857A1
Автор: BOR HUI-YUN, FUNG KUAN-ZONG, LIN CHIA-SHIH, NIEH CUO-YO, WEI CHAO-NAN
Принадлежит:

A method of preparing a tungsten metal material with high purity, comprising the steps of (A) providing a tungsten metal powder to mix with a metal nitrate to form a mixed powder slurry; (B) ball-grinding the mixed powder slurry to obtain a uniformly mixed powder; (C) sintering the uniformly mixed powder to obtain the tungsten metal material with high purity. Accordingly, the tungsten metal material with purity more than 99.9% can be prepared, so as to prepare the tungsten metal target. 1. A method of preparing a tungsten metal material with high purity , comprising the steps of:(A) providing a tungsten metal powder to mix with a metal nitrate to form a mixed powder slurry;(B) ball-grinding the mixed powder slurry to obtain a uniformly mixed powder;(C) sintering the uniformly mixed powder to obtain the tungsten metal material with high purity.2. The method of preparing a tungsten metal material with high purity as claimed in claim 1 , wherein the purity of the tungsten metal material with high purity is more than 99.9% claim 1 , and the density thereof is more than 99% of the density of pure tungsten.3. The method of preparing a tungsten metal material with high purity as claimed in claim 2 , wherein the tungsten metal material with high purity is used to prepare a tungsten metal target.4. The method of preparing a tungsten metal material with high purity as claimed in claim 3 , wherein before the sintering step (C) claim 3 , the uniformly mixed powder is further pressed and shaped to a desired shape.5. The method of preparing a tungsten metal material with high purity as claimed in claim 1 , wherein the metal nitrate is selected from nickel nitrate claim 1 , ferric nitrate claim 1 , and a mixture thereof.6. The method of preparing a tungsten metal material with high purity as claimed in claim 1 , wherein a solvent is added to the mixed powder slurry in the ball-grinding step (B) claim 1 , and the solvent is oleic acid.7. The method of preparing a tungsten metal ...

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Номер записи: 49
26-01-2017 дата публикации

PASSIVE ELECTRONICS COMPONENTS COMPRISING COATED NANOPARTICLES AND METHODS FOR PRODUCING AND USING THE SAME

Номер: US20170022608A1
Автор: KING David M., LICHTY Paul
Принадлежит: PneumatiCoat Technologies LLC

The present invention provides various passive electronic components comprising a layer of coated nanoparticles, and methods for producing and using the same. Some of the passive electronic components of the invention include, but are not limited to conductors, resistors, capacitors, piezoelectronic devices, inductors and transformers. 129.-. (canceled)30. A passive electronics component comprising an electrode layer of electric conducting nanoparticles that are coated with a thin film of oxidation-resistant material , wherein said thin film of oxidation-resistant material prevents oxidation of said nanoparticles , and wherein a function of said electrode layer is substantially the same to a similar electrode layer of electric conducting nanoparticles in the absence of said thin film of oxidation-resistant material.31. The passive electronics component of claim 30 , wherein said thin film of oxidation-resistant material provides no significant additional resistivity to said nanoparticles.32. The passive electronics component of claim 30 , wherein said thin film of oxidation-resistant material does not significantly affect the sintering of said nanoparticles.33. The passive electronics component of claim 30 , wherein said thin film of oxidation-resistant material comprises a thin film of wide bandgap material.34. The passive electronics component of claim 33 , wherein said thin film of wide bandgap material comprises a thin film of a material selected from the group consisting of aluminum oxide claim 33 , hafnium oxide claim 33 , zirconium oxide claim 33 , silicon oxide claim 33 , boron oxide claim 33 , aluminum nitride claim 33 , gallium nitride claim 33 , boron nitride claim 33 , silicon carbide claim 33 , boron carbide claim 33 , or a combination thereof.35. The passive electronics component of claim 33 , wherein the thickness of said thin film of wide bandgap material is 5.5 nm or less.36. The passive electronics component of claim 30 , wherein said thin film of ...

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Номер записи: 50
24-01-2019 дата публикации

COMPOSITE MATERIALS INCLUDING NANOPARTICLES, EARTH-BORING TOOLS AND COMPONENTS INCLUDING SUCH COMPOSITE MATERIALS, POLYCRYSTALLINE MATERIALS INCLUDING NANOPARTICLES, AND RELATED METHODS

Номер: US20190022745A1
Автор: DiGiovanni Anthony A., Eason Jimmy W., Scott Danny E.
Принадлежит:

A composite material comprising a plurality of hard particles surrounded by a matrix material comprising a plurality of nanoparticles. Earth boring tools including the composite material and methods of forming the composite material are also disclosed. A polycrystalline material having a catalyst material including nanoparticles in interstitial spaces between inter-bonded crystals of the polycrystalline material and methods of forming the polycrystalline material are also disclosed. 1. A polycrystalline compact cutting element for use in an earth-boring tool , the cutting element comprising a region of polycrystalline material comprising nanoparticles in interstitial spaces between inter-bonded crystals in the region of polycrystalline material , wherein the nanoparticles comprise a catalyst material.2. A method of forming an earth-boring tool , the method comprising:providing hard particles and carbon nanotubes within a cavity of a mold, the cavity having a shape corresponding to at least a portion of a bit body of an earth-boring tool for drilling subterranean formations, wherein the hard particles exhibit an average diameter in a range extending from about 0.5 microns to about 20.0 microns and comprise at least one material selected from the group consisting of diamond, tungsten boride, titanium boride, molybdenum boride, niobium boride, vanadium boride, hafnium boride, zirconium boride, silicon boride, tantalum boride, and chromium boride, wherein the carbon nanotubes exhibit an average diameter of about 500 nm or less;infiltrating the hard particles and the carbon nanotubes with a molten matrix material comprising a metal alloy comprising indium;cooling the molten matrix material to form a solid matrix material surrounding the hard particles wherein the carbon nanotubes comprise between about 1% and about 25% of the solid matrix material by weight and the carbon nanotubes improve formation and help prevent degradation of intergranular bonds in the solid matrix ...

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Номер записи: 51
24-01-2019 дата публикации

Sintered sliding member having exceptional corrosion resistance, heat resistance, and wear resistance; and method for producing said member

Номер: US20190022758A1
Автор: Shinichi Takezoe, Yoshinari Ishii
Принадлежит: Diamet Corp

A sintered sliding material with excellent corrosion resistance, heat resistance, and wear resistance is provided. The sintered sliding material has a composition made of: 36-86 mass % of Ni; 1-11 mass % of Sn; 0.05-1.0 mass % of P; 1-9 mass % of C; and the Cu balance including inevitable impurities. The sintered sliding material is made of a sintered material of a plurality of grains of alloy of Ni—Cu alloy or Cu—Ni alloy, the Ni—Cu alloy and the Cu—Ni alloy containing Sn, P, C, and Si; has a structure in which pores are dispersedly formed in grain boundaries of the plurality of the grains of alloy; and as inevitable impurities in a matrix constituted from the grains of alloy, a C content is 0.6 mass % or less and a Si content is 0.15 mass % or less.

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Номер записи: 52
23-01-2020 дата публикации

METHOD OF PRODUCING A POWDER PRODUCT

Номер: US20200023439A1
Автор: Gulizia Stefan, Oh Chull Hee
Принадлежит: Commonwealth Scientific and Industrial Research Organisation

A method of producing a powder suitable for additive manufacturing and/or powder metallurgy applications from a precursor particulate material comprising: subjecting the precursor particulate material to at least one high shear milling process, thereby producing a powder product having a reduced average particle size and a selected particle morphology. 119.-. (canceled)20. A method of producing an additive manufacturing and/or powder metallurgy powder from a precursor particulate material comprising irregularly shaped particulate material , said method comprising:subjecting the precursor particulate material to at least one high shear milling process comprising milling the material with at least one high shear mixer which includes a rotor configured to contact and comminute the precursor particulate material and a stator which extends substantially around the rotor, the stator being configured to have less than 1 mm gap between the rotor and an inner surface of the stator,thereby producing a powder product having a reduced average particle size and a particle morphology comprising spherical shaped particles.21. A method according to claim 20 , wherein the powder product has a particle size range determined by powder sieve analysis in which at least 90% claim 20 , of the particles have an average particle size <300 μm.22. A method according to claim 20 , wherein the morphology of the powder product can be controlled by changing the shear milling process conditions including at least one of shear milling rotor speed; shear milling time; or amount of precursor powder.23. A method according to claim 20 , wherein the powder product has at least one of: high flowability; high apparent/tap density; and low contamination.24. A method according to claim 20 , wherein the flowability of the powder product determined following ASTM B855-06 is at most 35 seconds/20 cm.25. A method according to claim 20 , wherein the apparent/tap density of the powder product is improved at least ...

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Номер записи: 53
23-01-2020 дата публикации

METAL MEMBER AND MANUFACTURING METHOD THEREOF

Номер: US20200024691A1
Автор: HANADA Tadayuki, HANAMI Kazuki, KITAGAKI Hisashi, SUZUKI Kenji, TERAUCHI Shuntaro
Принадлежит: Mitsubishi Heavy Industries Aero Engines, Ltd.

A metal member related to the present invention is provided with crystal grains of a metal and a granular reinforcing substance formed at boundaries of the crystal grains. The reinforcing substance includes grains of a shape with a grain area equivalent grain size larger than 1/100 of a grain area equivalent grain size of the crystal grains. The granular reinforcing substance preferably includes grains with a grain area equivalent grain size smaller than ⅕ of the grain area equivalent grain size of the crystal grains. Additionally, the granular reinforcing substance preferably includes grains of a shape wherein a value of a length, in a first direction in which a length thereof is longest, divided by a length of a longest part in a direction orthogonal to the first direction is smaller than 5. A metal member with a high strength at high temperatures is manufactured by metal powder injection molding. 1. A metal member comprising:crystal grains of a metal; anda granular reinforcing substance formed at boundaries of the crystal grains,wherein the reinforcing substance includes grains of a shape with a grain area equivalent grain size larger than 1/100 of a grain area equivalent grain size of the crystal grains.2. The metal member according to claim 1 ,wherein the reinforcing substance includes grains of a shape with a grain area equivalent grain size smaller than ⅕ of the grain area equivalent grain size of the crystal grains.3. The metal member according to claim 1 ,wherein the reinforcing substance includes grains of a shape so that a value of a length, in a first direction in which a length thereof is longest, divided by a length of a longest part in a direction orthogonal to the first direction is smaller than 5.4. The metal member according to claim 3 ,wherein 95% or more of the reinforcing substance is formed so that a value of a length, in a first direction in which a length thereof is longest, divided by a length of a longest part in a direction orthogonal to ...

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Номер записи: 54
23-01-2020 дата публикации

THERMOELECTRIC COMPOSITIONS AND METHODS OF FABRICATING HIGH THERMOELECTRIC PERFORMANCE MgAgSb-BASED MATERIALS

Номер: US20200024701A1
Автор: Jie Qing, Lan Yucheng, Ren Zhifeng, Sui Jiehe, Tang Zhongjia, Zhao Huaizhou
Принадлежит: UNIVERSITY OF HOUSTON SYSTEM

Systems and methods of manufacturing a thermoelectric, high performance material by using ball-milling and hot pressing materials according to various formulas, where some formulas substitute a different element for part of one of the elements in the formula, in order to obtain a figure of merit (ZT) suitable for thermoelectric applications. 1. A method of manufacturing a thermoelectric material comprising:ball-milling a plurality of components to form at least one powder;forming a pressed component by hot-pressing the at least one powder; andannealing the pressed component, wherein the pressed component comprises a ZT value of at least 0.85 at room temperature.2. The method of claim 1 , wherein a first component of the plurality of components comprises magnesium (Mg) claim 1 , silver (Ag) claim 1 , antimony (Sb) claim 1 , copper (Cu) claim 1 , or nickel (Ni) claim 1 , wherein a second component of the plurality of components is one of magnesium (Mg) claim 1 , silver (Ag) claim 1 , antimony (Sb) claim 1 , copper (Cu) claim 1 , or nickel (Ni) claim 1 , and wherein the second component is not the same as the first component.3. The method of claim 1 , wherein a third component of the plurality of components comprises magnesium (Mg) claim 1 , silver (Ag) claim 1 , antimony (Sb) claim 1 , copper (Cu) claim 1 , or nickel (Ni) claim 1 , wherein the third component different than the first component and the second component claim 1 , wherein a fourth component of the plurality of components magnesium (Mg) claim 1 , silver (Ag) claim 1 , antimony (Sb) claim 1 , copper (Cu) claim 1 , chromium (Cr) claim 1 , zinc (Zn) claim 1 , or nickel (Ni) claim 1 , and wherein the fourth component different than the first component claim 1 , the second component claim 1 , and the third component.4. The method of claim 1 , wherein hot-pressing the powder comprises holding the second mixture at a temperature from about 125° C. to about 300° C. for a period of about 0.5 minutes to about 20 ...

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Номер записи: 55
02-02-2017 дата публикации

ALUMINUM ALLOY POWDER FORMULATIONS WITH SILICON ADDITIONS FOR MECHANICAL PROPERTY IMPROVEMENTS

Номер: US20170028469A1
Автор: Bishop Donald Paul, Cooke Randy Willams, Donaldson Ian, Hexem Richard L.
Принадлежит: GKN Sinter Metals, LLC

An improved aluminum alloy powder metal includes silicon additions. When this improved powder metal with silicon additions is sintered to form a sintered component, the resultant component exhibits many improved mechanical strength properties and improved thermal resistance. 1. A powder metal composition comprising:an atomized aluminum powder metal in which the aluminum powder is prealloyed with a member selected from the group consisting of iron separately, nickel separately, and iron and nickel together;a first master alloy powder metal comprising aluminum and copper;a second master alloy powder metal comprising aluminum and silicon;a first elemental powder metal comprising magnesium; anda second elemental powder metal comprising tin.2. The powder metal of claim 1 , wherein the second master alloy comprising aluminum and silicon is an Al-12Si master alloy.3. The powder metal of claim 1 , wherein the first master alloy powder metal comprising aluminum and copper is an Al-50Cu master alloy claim 1 , wherein the second master alloy comprising aluminum and silicon is an Al-12Si master alloy claim 1 , and wherein the first and second elemental powder metals are high purity elemental powder metals.4. The powder metal of claim 1 , wherein the powder metal composition includes 2.3 weight percent copper claim 1 , 1.6 weight percent magnesium claim 1 , 0.2 weight percent tin claim 1 , and 0.2 weight percent silicon.5. The powder metal of claim 4 , wherein the powder metal composition includes 1.0 weight percent iron claim 4 ,6. The powder metal of claim 4 , wherein the powder metal composition includes 1.0 weight percent nickel.7. The powder metal of claim 4 , wherein the powder metal composition includes 1.0 weight percent iron and 1.0 weight percent nickel.8. The powder metal of claim 1 , wherein the powder metal composition includes 1.5 weight percent admixed Licowax C powder.9. The powder metal of claim 1 , wherein the weight percent of silicon in the powder metal ...

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Номер записи: 56
23-01-2020 дата публикации

ELECTRICAL CONTACT ALLOY FOR VACUUM CONTACTORS

Номер: US20200027668A1
Автор: Balasubramanian Ganesh Kumar, CAMPBELL LOUIS GRANT, ROSENKRANS BENJAMIN ALEX
Принадлежит: Eaton Intelligent Power Limited

An improved electrical contact alloy, useful for example, in vacuum interrupters used in vacuum contactors is provided. The contact alloy according to the disclosed concept comprises copper particles and chromium particles present in a ratio of copper to chromium particles of 2:3 to 20:1 by weight. The electrical contact alloy also comprises particles of a carbide, which reduces the weld break strength of the electrical contact alloy without reducing its interruption performance. 1. A method of making an electrical contact for use in a vacuum interrupter comprising:milling carbide particles to a desired size;providing copper and chromium particles that are larger in size than the milled carbide particles;mixing the milled carbide particles with the copper and chromium particles, present in a ratio of copper to chromium particles at 2:3 to 20:1 by weight;pressing the mixture into a compact; and,heating the compact to a temperature appropriate to a sintering process selected from the group consisting of solid state sintering, liquid phase sintering, spark plasma sintering, vacuum hot pressing, and hot isostatic pressing, such that the compact attains the properties suitable for use as a vacuum interrupter contact.2. The method recited in further comprising forming an electrical contact of a desired configuration by machine shaping the dense blank.3. The method recited in wherein the process is a sintering process and the method further comprises adding to the mixture a sinter activation element to increase the density of the compact upon sintering.4. The method recited in wherein the sinter activation element is selected from the group consisting of cobalt claim 3 , nickel claim 3 , nickel-iron claim 3 , iron aluminide claim 3 , and combinations thereof.5. The method recited in wherein the process is a sintering process claim 1 , and the temperature is between 1085° C. and 1200° C.6. The method recited in wherein the carbide particles are selected from the group ...

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Номер записи: 57
01-02-2018 дата публикации

Powdered Titanium Alloy Composition and Article Formed Therefrom

Номер: US20180029131A1
Автор: Backhaus Gary M., Burkett Robert, Carr Michael S., Glamm Ryan J., Pecina Joseph
Принадлежит:

A titanium alloy composition that includes, other than impurities, about 7.0 to about 9.0 percent by weight vanadium (V), about 3.0 to about 4.5 percent by weight aluminum (Al), about 0.8 to about 1.5 percent by weight iron (Fe), about 0.14 to about 0.22 percent by weight oxygen (O), optionally about 0.8 to about 2.4 percent by weight chromium (Cr), and the balance titanium. 1. A titanium alloy consisting essentially of:about 7.0 to about 9.0 percent by weight vanadium;about 3.0 to about 4.5 percent by weight aluminum;about 0.8 to about 1.5 percent by weight iron;about 0.14 to about 0.22 percent by weight oxygen;optionally about 0.8 to about 2.4 percent by weight chromium; andbalance titanium.2. The titanium alloy of wherein said vanadium is present at about 7.0 to about 8.5 percent by weight.3. The titanium alloy of wherein said vanadium is present at about 7.5 to about 9.0 percent by weight.4. The titanium alloy of wherein said aluminum is present at about 3.5 to about 4.5 percent by weight.5. The titanium alloy of wherein said aluminum is present at about 3.0 to about 4.0 percent by weight.6. The titanium alloy of wherein said iron is present at about 0.9 to about 1.5 percent by weight.7. The titanium alloy of wherein said iron is present at about 0.8 to about 1.3 percent by weight.8. The titanium alloy of wherein said oxygen is present at about 0.15 to about 0.22 percent by weight.9. The titanium alloy of wherein said oxygen is present at about 0.14 to about 0.20 percent by weight.10. The titanium alloy of wherein said chromium is optionally present at about 1.8 to about 2.4 percent by weight.11. The titanium alloy of wherein:said vanadium is present at about 7.0 to about 8.5 percent by weight;said aluminum is present at about 3.5 to about 4.5 percent by weight;said iron is present at about 0.9 to about 1.5 percent by weight; andsaid oxygen is present at about 0.15 to about 0.22 percent by weight.12. The titanium alloy of wherein said optional chromium is not ...

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Номер записи: 58
01-02-2018 дата публикации

A nozzle and a tundish arrangement for the granulation of molten material

Номер: US20180029133A1
Автор: Per-Åke LUNDSTRÖM
Принадлежит: Uvan Holding AB

A nozzle, a tundish arrangement used for the production of granulated material, and a method and apparatus for the production of a granulated material with an improved size distribution are provided. The grain size and grain size distribution is controlled by a nozzle having a specific design. The nozzle comprises an upper inlet opening, sidewalls forming a channel, a bottom and at least one outlet opening or at least one row of outlet openings at the lower end of the channel. The outlet opening(s) in the channel have a size of at least 5 mm in the smallest dimension. A cross sectional area of the channel at the inlet A C is at least 3 times bigger than the total area of the outlet openings A T .

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Номер записи: 59
01-02-2018 дата публикации

Uniform Dispersing of Graphene Nanoparticles in a Host

Номер: US20180030277A1
Автор: Lei Zhai, Matthew MCINNIS
Принадлежит: University of Central Florida Research Foundation Inc UCFRF

The present invention includes a simple, scalable and solventless method of dispersing graphene into polymers, thereby providing a method of large-scale production of graphene-polymer composites. The composite powder can then be processed using the existing techniques such as extrusion, injection molding, and hot-pressing to produce a composites of useful shapes and sizes while keeping the advantages imparted by graphene. Composites produced require less graphene filler and are more efficient than currently used methods and is not sensitive to the host used, such composites can have broad applications depending on the host's properties.

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Номер записи: 60
04-02-2016 дата публикации

Article having plurality of functionally graded regions and a method of manufacturing thereof

Номер: US20160033035A1
Автор: S. Sundar Sriram
Принадлежит: Sundram Fasteners Ltd

The present disclosure generally relates to an article used in the manual transmission gearbox in automobiles. More particularly, it relates to an article used in manual transmission gearbox, namely the shifter dog, composition used for manufacturing the shifter dog and a method of manufacturing the shifter dog.

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Номер записи: 61
05-02-2015 дата публикации

SPHERICAL SILVER POWDER AND METHOD FOR PRODUCING SAME

Номер: US20150034883A1
Автор: HIRATA Koji, Nogami Noriaki
Принадлежит:

While a water reaction system containing silver ions is irradiated with ultrasonic waves to cause cavitation therein, a reducing agent containing solution, which contains an aldehyde as a reducing agent, is mixed with the water reaction system to deposit silver particles, the solid-liquid separation of which is carried out, and thereafter, the separated silver particles are washed and dried to produce a spherical silver powder which has a closed cavity in each particle thereof. 1. A method for producing a spherical silver powder , said method comprising the steps of:preparing a water reaction system containing silver ions;preparing a reducing agent containing solution which contains an aldehyde as a reducing agent; anddepositing silver particles by reduction by mixing the reducing agent containing solution with the water reaction system while causing cavitation in the water reaction system.2. A method for producing a spherical silver powder as set forth in claim 1 , wherein said cavitation is caused by irradiating said water reaction system containing silver ions with ultrasonic waves.3. A method for producing a spherical silver powder as set forth in claim 1 , wherein said water reaction system containing silver ions is an aqueous solution containing a silver ammonia complex.4. A method for producing a spherical silver powder as set forth in claim 1 , wherein said reducing agent containing solution is a solution containing formaldehyde or acetaldehyde.5. A method for producing a spherical silver powder as set forth in claim 1 , which further comprises steps of carrying out the solid-liquid separation of said silver particles deposited by reduction;washing the separated silver particles; anddrying the washed silver particles at a temperature of not higher than 100° C.6. A method for producing a spherical silver powder as set forth in claim 1 , wherein said spherical silver powder has a closed cavity in each particle thereof.7. A spherical silver powder which has a ...

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Номер записи: 62
02-02-2017 дата публикации

Low Pressure Sintering Powder

Номер: US20170033073A1
Автор: Chaki Nirmalya Kumar, Ghoshal Shamik, Roy Poulami Sengupta, RUSTOGI Anubhav, Sarkar Siuli
Принадлежит:

A sintering powder comprising: 1. A sintering powder comprising:a first type of metal particles having a mean longest dimension of from 100 nm to 50 μm.2. The sintering powder of claim 1 , wherein at least a portion of the first type of metal particles are at least partially coated with a capping agent comprising a carboxylate and/or amine functional group.3. The sintering powder of claim 1 , wherein the capping agent of the first type of metal particles comprises a straight chain or branched chain aliphatic acid.4. The sintering powder of claim 1 , comprising up to 5 wt % capping agent.5. (canceled)6. The sintering powder of claim 1 , wherein the first type of metal particles has a D50 of from 1 to 3 μm.7. The sintering powder of claim 1 , wherein the first type of metal particles has a tap density of from 3.5 to 5.5 g/cc.8. The sintering powder of claim 1 , further comprising a second type of metal particles having a mean longest dimension of less than 100 nm claim 1 , wherein the second type of metal particles are at least partially coated with a capping agent.9. The sintering powder of claim 8 , wherein the second type of metal particles has a mean longest dimension of from 5 to 75 nm.10. The sintering powder of comprising from 1 to 19 wt % of the first type of metal particles and from 81 to 99 wt % of the second type of metal particles.11. The sintering powder of wherein the first type of metal particles and/or second type of metal particles comprises silver or an alloy or core-shell structures of silver coated particles thereof.12. The sintering powder of claim 8 , wherein the capping agent of the second type of metal particles comprises an amine and/or a carboxylate functional group.13. The sintering powder of wherein the capping agent of the second type of metal particles comprises a straight chain or branched chain aliphatic amine.14. The sintering powder of comprising:from 1 to 10 wt % of a first type of metal particles having a mean longest dimension of ...

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Номер записи: 63
04-02-2016 дата публикации

COMPOSITE OXIDE-COATED METAL POWDER, PRODUCTION METHOD THEREFOR, CONDUCTIVE PASTE USING COMPOSITE OXIDE-COATED METAL POWDER, AND MULTILAYER CERAMIC ELECTRONIC COMPONENT

Номер: US20160035490A1
Автор: NAKANISHI Toru, Tsuru Akihiro
Принадлежит:

A method for producing a composite oxide-coated metal powder that includes a first step of coating a metal powder with a metal oxide by a hydrolysis reaction of a water-soluble metal compound in an aqueous solvent, and a second step of turning the metal oxide into a composite oxide. In the first step, the water-soluble metal compound containing a tetravalent metal element dissolved in a solvent including at least water is added to a slurry including the metal powder dispersed in the solvent to deposit the metal oxide containing the tetravalent metal element and produce a metal oxide-coated metal powder slurry. In the second step, a solution or powder containing at least one divalent element is added to the metal oxide-coated metal powder slurry to react the metal oxide present on the surface of the metal powder with the divalent element, thereby providing the composite oxide-coated metal powder. 1. A method for producing a composite oxide-coated metal powder , the method comprising:adding a water-soluble metal compound containing a tetravalent metal element to a first slurry including a metal powder having a metal element dispersed in a solvent including at least water so as to deposit a metal oxide containing the tetravalent metal element at least partially on a surface of the metal powder thereby providing a second slurry containing a metal oxide-coated metal powder; andadding a solution or a powder containing at least one divalent element to the second slurry to react the metal oxide on the surface of the metal powder with the divalent element so as to produce the composite oxide-coated metal powder.2. The method for producing a composite oxide-coated metal powder according to claim 1 , wherein the metal powder has a ratio of the metal element in a hydroxide state within a range of 30% to 100% claim 1 , the ratio being obtained by peak separation of the metal element in a metal state claim 1 , the metal element in an oxide state claim 1 , and the metal element in ...

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Номер записи: 64
31-01-2019 дата публикации

SINTERED BEARING

Номер: US20190032714A1
Автор: GOTOU Takahiro, ITO Yoshinori
Принадлежит:

Provided is a sintered bearing () obtained by molding raw material powders containing graphite powder and metal powder in a mold, followed by sintering, in which: the graphite powder to be used includes granulated graphite powder; and a ratio of free graphite in a bearing surface () of the sintered bearing is set to from 25% to 80% in terms of an area ratio. An average grain size of the granulated graphite powder is set to from 60 μm to 500 μm. A blending ratio of the granulated graphite powder in the raw material powders is set to from 3 wt % to 15 wt %. 1. A sintered bearing , which is obtained by molding raw material powders containing graphite powder and metal powder in a mold , followed by sintering , wherein:the graphite powder to be used comprises granulated graphite powder; anda ratio of free graphite in a bearing surface of the sintered bearing is set to from 25% to 80% in terms of an area ratio;the free graphite is formed by sintering granulated graphite powder;the granulated graphite powder is formed by granulating fine powders of flake graphite; anda blending ratio of the granulated graphite powder in the raw material powders is set to from 3 wt % to 15 wt %.2. The sintered bearing according to claim 1 , wherein an average grain size of the granulated graphite powder is set to from 60 μm to 500 μm.3. (canceled)4. The sintered bearing according to claim 1 , wherein an apparent density of the granulated graphite powder is set to 1.0 g/cmor less.5. The sintered bearing according to claim 1 , wherein the sintered bearing is used without being impregnated with lubricating oil.6. The sintered bearing according to claim 1 , wherein the sintered bearing is used with being impregnated with lubricating oil. The present invention relates to a sintered bearing comprising a sintered metal.Sintered bearings have been widely used as bearings for a small precision motor by virtue of their excellent quietness. The sintered bearings are roughly divided into a copper-based ...

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Номер записи: 65
04-02-2021 дата публикации

METHODS OF NANOSTRUCTURE FORMATION AND SHAPE SELECTION

Номер: US20210032099A1
Автор: SUN Yugang, Xia Younan
Принадлежит:

Methods for forming nanostructures of various shapes are disclosed. Nanocubes, nanowires, nanopyramids and multiply twinned particles of silver may by formed by combining a solution of silver nitrate in ethylene glycol with a solution of poly(vinyl pyrrolidone) in ethylene glycol. Hollow nanostructures may be formed by reacting a solution of solid nanostructures comprising one of a first metal and a first metal alloy with a metal salt that can be reduced by the first metal or first metal alloy. Nanostructures comprising a core with at least one nanoshell may be formed by plating a nanostructure and reacting the plating with a metal salt. 1. A method of manufacturing metal nanostructures comprising:identifying a desired shape for the metal nanostructures;forming the metal nanostructures under reaction conditions optimized to yield the desired shape at a higher percentage than any other nanostructure shape; andseparating the nanostructures having the desired shape from nanostructures of other shapes.2. The method of claim 1 , wherein the separating comprises filtering nanostructures having the described shape from nanostructures of other shapes.3. The method of claim 1 , wherein the separating is achieved by gravity.4. A method of preparing hollow nanostructures comprising:obtaining a solution of solid nanostructures comprising at least one metal;selecting a salt of a second metal, wherein the first metal can reduce the salt; andblending a sufficient amount of the salt with the solid nanostructure solution to enable the formation of hollow nanostructures.5. The method of claim 4 , wherein the salt is HAuCl.6. The method of wherein the amount of the salt is sufficient to yield hollow nanostructures comprising substantially non-porous walls.7. The method of wherein the amount of the salt is sufficient to yield hollow nanostructures comprising porous walls.8. The method of wherein the solid nanostructures comprise nanocubes and the hollow nanostructures comprise ...

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Номер записи: 66
11-02-2016 дата публикации

MECHANICAL PROCESSING OF REACTIVE LAMINATES

Номер: US20160039003A1
Автор: Stover Adam, Weihs Timothy P.
Принадлежит:

A method of producing a reactive powder includes providing a bulk structure of reactive material comprising a first reactant and a second reactant, the bulk structure having a preselected average spacing between the first and the second reactants; and mechanically processing the bulk structure of reactive material to produce a plurality of particles from the bulk structure such that each of the plurality of particles comprises the first and second reactants having an average spacing that is substantially equal to the preselected average spacing of the bulk structure of reactive material. The first and second materials of the plurality of particles react with each other in an exothermic reaction upon being exposed to a threshold energy to initiate the exothermic reaction and remain substantially stable without reacting with each other prior to being exposed to the threshold energy. 116-. (canceled)17. A reactive powder produced according to a method of comprising:providing a bulk structure of reactive material comprising a first reactant and a second reactant, said bulk structure having a preselected average spacing between said first and said second reactants; andmechanically processing said bulk structure of reactive material to produce a plurality of particles from said bulk structure such that each of said plurality of particles comprises said first and second reactants having an average spacing that is substantially equal to said preselected average spacing of said bulk structure of reactive material,wherein said first and second materials of said plurality of particles react with each other in an exothermic reaction upon being exposed to a threshold energy to initiate said exothermic reaction and remain substantially stable without reacting with each other prior to being exposed to said threshold energy.18. A reactive material comprising a plurality of reactive particles each of which is at least one of fused with or adhered to at least one adjacent reactive ...

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Номер записи: 67
31-01-2019 дата публикации

COMPOSITE MAGNETIC MATERIAL AND METHOD FOR MANUFACTURING SAME

Номер: US20190035525A1
Автор: IGARASHI Toshiyuki
Принадлежит: Tokin Corporation

Provided is a composite magnetic material in which low electrical conductivity and high magnetic permeability are achieved, and in which a frequency band in which decoupling is caused encompasses higher frequencies. The composite magnetic material comprises a flat soft magnetic metal powder; insulating particles which are smaller than an average thickness of the soft magnetic metal powder and which are disposed on a surface of the soft magnetic metal powder; and an organic binder material which retains the soft magnetic metal powder and the insulating particles in a dispersed manner. In a cross section in a thickness direction of the soft magnetic metal powder, there is at least one insulating particle per a length of 0.2 μm of the soft magnetic metal powder surface. 1. A composite magnetic material comprising:soft magnetic metal powder having a flat shape;insulating particles distributed on a surface of the soft magnetic metal powder, the insulating particles each having a size smaller than an average thickness of the soft magnetic metal powder; andan organic binder configured to retain the soft magnetic metal powder and the insulating particles in a dispersed manner,wherein the insulating particles are distributed so that a number of the insulating particles is at least one per a length of 0.2 μm of the surface of the soft magnetic metal powder in a cross section of the soft magnetic metal powder in a thickness direction.2. The composite magnetic material according to claim 1 , wherein the soft magnetic metal powder has a 10% cumulative particle diameter Dof at least 2 μm and at most 6 μm and a 90% cumulative particle diameter Dof at least 8 μm and at most 27 μm in a volume-based particle size distribution.3. The composite magnetic material according to claim 1 , wherein the insulating particles each comprise at least one kind of alumina claim 1 , silica claim 1 , magnesia claim 1 , titania claim 1 , or zirconia.4. The composite magnetic material according to ...

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Номер записи: 68
12-02-2015 дата публикации

Dispersoid reinforced alloy powder and method of making

Номер: US20150040723A1
Автор: Anderson Iver E., Terpstra Robert L.
Принадлежит:

A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with a reactive species acquired from an atomizing gas than does the alloying element. The melted alloy is atomized with the atomizing gas including the reactive species to form atomized particles so that the reactive species is (a) dissolved in solid solution to a depth below the surface of atomized particles and/or (b) reacted with the dispersoid-forming element to form dispersoids in the atomized particles to a depth below the surface of said atomized particles. The atomized alloy particles are solidified as solidified alloy particles or as a solidified deposit of alloy particles. Bodies made from the dispersion strengthened alloy particles, deposit thereof, exhibit enhanced fatigue and creep resistance and reduced wear as well as enhanced corrosion and/or oxidation resistance at high temperatures by virtue of the presence of the corrosion and/or oxidation resistance imparting alloying element in solid solution in the particle alloy matrix. 114.-. (canceled)15. Atomized alloy particles , each comprising a matrix metal comprising Cu , an environmental resistance-imparting alloying element substantially in solid solution in the matrix metal to provide a particle alloy matrix , and dispersoids formed in-situ in the particle alloy matrix during atomization , wherein the particles include a surface compound thereon formed during atomization by reaction of a reactive species and the alloying element.16. The particles of having at least a surface region that contains the dispersoids.17. The particles of wherein the surface region has a thickness greater than 1 micrometer.18. (canceled)19. The particles of wherein the alloying element is selected from the group consisting of Cr claim 15 , Mo ...

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Номер записи: 69
12-02-2015 дата публикации

Dispersoid reinforced alloy powder and method of making

Номер: US20150040724A1
Автор: Anderson Iver E., Terpstra Robert L.
Принадлежит:

A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with a reactive species acquired from an atomizing gas than does the alloying element. The melted alloy is atomized with the atomizing gas including the reactive species to form atomized particles so that the reactive species is (a) dissolved in solid solution to a depth below the surface of atomized particles and/or (b) reacted with the dispersoid-forming element to form dispersoids in the atomized particles to a depth below the surface of said atomized particles. The atomized alloy particles are solidified as solidified alloy particles or as a solidified deposit of alloy particles. Bodies made from the dispersion strengthened alloy particles, deposit thereof, exhibit enhanced fatigue and creep resistance and reduced wear as well as enhanced corrosion and/or oxidation resistance at high temperatures by virtue of the presence of the corrosion and/or oxidation resistance imparting alloying element in solid solution in the particle alloy matrix. 114.-. (canceled)15. Atomized alloy particles , each comprising a matrix metal comprising Au , an environmental resistance-imparting alloying element substantially in solid solution in the matrix metal to provide a particle alloy matrix , and dispersoids formed in-situ in the particle alloy matrix during atomization , wherein the particles include a surface compound thereon formed during atomization by reaction of a reactive species and the alloying element.16. The particles of having at least a surface region that contains the dispersoids.17. The particles of wherein the surface region has a thickness greater than 1 micrometer.18. (canceled)19. The particles of wherein the alloying element is selected from the group consisting of Cr claim 15 , Mo ...

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Номер записи: 70
12-02-2015 дата публикации

TITANIUM ALLOY

Номер: US20150040726A1
Автор: Benish Adam, Jacobsen Lance E.
Принадлежит: CRISTAL METALS INC.

A titanium base alloy powder is formed by subsurface reduction of a chloride vapor with a molten alkali metal or molten alkaline earth metal to form reaction products comprising pre-alloy particles and a salt of the alkali metal or the alkaline earth metal. A majority of the pre-alloy particles have a composition of at least 50% by weight of titanium, about 5.38% to 6.95% by weight of aluminum, and about 3% to 5% by weight of vanadium. The pre-alloy particles are recovered from the reaction products to produce a titanium base alloy powder containing less than about 200 ppm alkali or alkaline earth metal. 1. A method of forming a titanium base alloy powder , the method comprising:subsurface reduction of a chloride vapor with a molten alkali metal or molten alkaline earth metal to form reaction products comprising pre-alloy particles and a salt of the alkali metal or the alkaline earth metal, a majority of the pre-alloy particles having a composition of at least 50% by weight of titanium, 5.38% or more by weight of aluminum, and 3.45% or more by weight of vanadium, wherein the total amount of aluminum and vanadium is less than about 20% by weight; andrecovering the pre-alloy particles from the reaction products to produce a titanium base alloy powder containing less than about 200 ppm alkali or alkaline earth metal.2. The method of claim 1 , wherein the titanium base alloy powder meets ASTM B265 grade 5 chemical specifications.3. The method of claim 1 , wherein the alkali metal is Na claim 1 , K or mixtures thereof and the alkaline earth metal is Mg claim 1 , Ca claim 1 , Ba or mixtures thereof.4. The method of claim 1 , wherein the titanium alloy powder is in agglomerates having an average mean diameter as measured by sieve analysis greater than about 50 microns.5. The method of claim 1 , wherein the titanium alloy powder has a surface area as determined by BET analysis of at least about 3 square meters per gram after distillation of the powder at temperatures ...

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Номер записи: 71
09-02-2017 дата публикации

Metal Magnetic Material And Electronic Component

Номер: US20170040093A1
Автор: Yamamoto Makoto
Принадлежит:

Provided are: a metal magnetic material capable of reliably establishing insulation while realizing high saturation magnetic flux density; and an electronic component using the metal magnetic material and having low loss and good DC superimposition characteristics. The metal magnetic material for forming a component body of the electronic component comprises a metal magnetic alloy powder consisting of iron and silicon or containing iron, silicon and chromium; and an additional element added to the metal magnetic alloy powder, wherein the additional element is more easily oxidizable in the equilibrium state of oxidation-reduction reaction than the elements contained in the metal magnetic alloy powder. The component body () is internally formed with a coil pattern consisting of a plurality of coil conductor patterns (A to C). The metal magnetic material is less likely to undergo degradation in magnetic properties even after it is subjected to a heat treatment at a high temperature, so that it becomes possible to perform a heat treatment for reducing a resistance of the coil pattern, at an adequate temperature. 1. A metal magnetic material comprising a metal magnetic alloy powder containing iron and silicon , and an additional element added to the metal magnetic alloy powder , wherein the additional element is more easily oxidizable in an equilibrium state of oxidation-reduction reaction than the elements contained in the metal magnetic alloy powder.2. The metal magnetic material as recited in claim 1 , wherein the metal magnetic alloy powder further contains chromium.3. The metal magnetic material as recited in claim 1 , wherein the metal magnetic alloy powder consists of iron and silicon.4. The metal magnetic material as recited in claim 1 , wherein the additional element which is more easily oxidizable in an equilibrium state of oxidation-reduction reaction than the elements contained in the metal magnetic alloy powder is lithium.5. The metal magnetic material as ...

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Номер записи: 72
07-02-2019 дата публикации

SPUTTERING TARGET AND METHOD OF MANUFACTURING SPUTTERING TARGET

Номер: US20190039131A1
Автор: IO Kensuke, Shiono Ichiro, Umemoto Keita, Zhang Shoubin
Принадлежит:

Provided is a sputtering target having a composition comprising: 5 at % or more and 60 at % or less of Ga, and 0.01 at % or more and 5 at % or less of alkali metal, as metal components; and a Cu balance including inevitable impurities, wherein a concentration of the alkali metal on a surface on a sputtering surface side is less than 80% of a concentration of the alkali metal inside the target. 1. A sputtering target having a composition comprising: 5 at % or more and 60 at % or less of Ga; and 0.01 at % or more and 5 at % or less of alkali metal , as metal components; and a Cu balance including inevitable impurities , whereina concentration of the alkali metal on a surface on a sputtering surface side is less than 80% of a concentration of the alkali metal inside the target.2. The sputtering target according to claim 1 , wherein the alkali metal concentration on the sputtering surface is 1 at % or less.3. The sputtering target according to claim 1 , wherein a relative density is 90% or more.4. The sputtering target according to claim 1 , wherein an arithmetic average roughness Ra of the sputtering surface is 1.6 μm or less.5. The sputtering target according to claim 1 , wherein the composition further comprises one or more of metal elements selected from In claim 1 , Al claim 1 , Ag claim 1 , Zn claim 1 , Sn claim 1 , Bi claim 1 , Sb claim 1 , and Mg as metal components in a range of 0.1 at % or more and 5.0 at % or less in total.6. A method of manufacturing the sputtering target according to claim 1 , the method comprising:a mixing and crushing step of mixing and crushing a raw material powder including Cu and Ga, and an alkali metal compound powder to obtain a mixed powder;a sintering step of obtaining a sintered material by sintering the mixed powder obtained in the mixing and crushing step; andan alkali metal removing step of removing an alkali metal on a surface area on the sputtering surface side of the obtained sintered material,wherein the alkali metal ...

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Номер записи: 73
07-02-2019 дата публикации

Pre-sintered preform and process

Номер: US20190039141A1
Автор: Brian Lee Tollison, Matthew Laylock, Srikanth Chandrudu Kottilingam, Timothy Pletcher, YAN Cui
Принадлежит: General Electric Co

A process includes placing a powder composition of a first metal powder of a first alloy and a second metal powder of a second alloy in a ceramic die and sintering the powder composition in the ceramic die to form a sintered rod in the ceramic die. The process also includes removing the sintered rod from the ceramic die and slicing the sintered rod into a plurality of pre-sintered preforms.

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Номер записи: 74
11-02-2016 дата публикации

COMPOSITE MAGNETIC POWDER FOR NOISE SUPPRESSION

Номер: US20160044838A1
Автор: AGA Koji, IGARASHI Tetsuya
Принадлежит: POWDERTECH CO., LTD.

The object is to provide a composite magnetic powder for noise suppression to give a noise suppressor having ability to suppress the noise in a wide range from a low frequency through a high frequency while suppressing heat generation by reducing a dielectric constant loss on the high frequency side, and in order to attain the object, there is employed a composite magnetic powder for noise suppression in which the surface of a metallic powder is coated with a fine particle having a high dielectric constant and a binder resin or the like. By using this composite magnetic powder for noise suppression, there can be provided a noise suppressor excellent in ability to suppress the noise in a wide frequency region.

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Номер записи: 75
18-02-2016 дата публикации

METHODS AND SYSTEMS FOR ELECTROCHEMICAL MACHINING OF AN ADDITIVELY MANUFACTURED COMPONENT

Номер: US20160045967A1
Автор: Carter William Thomas, Deaton, Fornasiero Michael John, JR. John Broddus, TRIMMER Andrew Lee
Принадлежит:

A system of manufacturing a component comprises forming a component on a conductive build plate. The component defines at least one access port and includes an inner surface that defines at least one internal passage. The system further includes forming at least one electrode within the at least one internal passage, wherein the at least one electrode is electrically isolated from the component. An electromotive force is applied to the at least one electrode to facilitate smoothing the inner surface. 1. A system comprising:a component, wherein said component includes an inner surface and at least one internal passage;at least one electrode formed within said at least one internal passage and electrically isolated from the component, wherein said component and said at least one electrode are formed using additive manufacturing; anda power source operatively connected to said at least one electrode, wherein said power source is configured to apply an electromotive force to facilitate smoothing said inner surface with said electrode.2. The system according to wherein the at least one electrode and the component are formed substantially simultaneously.3. The system according to wherein the power source is operatively connected to said at least one electrode and to said component.4. The system according to wherein the component is coupled to a support plate.5. The system according to claim 4 , wherein said support plate is formed from a non-conductive material electrically isolating the at least one electrode from the component.6. The system according to claim 4 , wherein said support plate further comprises a non-conductive material on at least some portions of the support plate electrically isolating the at least one electrode from the component.7. The system according to further comprising at least one access port through the component and providing access to said at least one internal passage.8. The system according to further comprising at least one anchor coupled ...

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Номер записи: 76
16-02-2017 дата публикации

WEAR RESISTANT COMPONENT AND DEVICE FOR MECHANICAL DECOMPOSITION OF A MATERIAL PROVIDED WITH SUCH A COMPONENT

Номер: US20170043347A1
Автор: BERGLUND Tomas, Fischer Udo
Принадлежит:

A wear resistant component for comminution of particulate material includes a steel body and a leading portion of cemented carbide attached to a front portion of the steel body. The wear resistant component includes a wear resistant coating of a metal matrix composite attached to at least one face of the steel body connected to the leading portion. 1. A wear resistant component for comminution of particulate material , comprising:a steel body having a front portion and a leading portion of cemented carbide attached to the front portion of said steel body; anda wear resistant coating of a metal matrix composite attached to at least one face of said steel body connected to said leading portion, wherein the wear resistant coating is formed by consolidation of a powder mixture and by metallurgically bonding said powder mixture to the steel body by means of Hot Isostatic Pressing.2. A wear resistant component according to claim 1 , wherein said metal matrix composite is selected from a nickel-based metal matrix composite claim 1 , a cobalt-based metal matrix composite claim 1 , and an iron-based metal matrix composite.3. A wear resistant component according to claim 1 , wherein particles of tungsten carbide are distributed as discrete non-interconnecting particles in the matrix of metal-based alloy.4. A wear resistant component according to claim 1 , wherein said metal matrix composite includes particles of tungsten carbide and a matrix of a nickel-based alloy claim 1 , wherein the nickel-based alloy consists of: 0-1.0 wt % C; 5-14.0 wt % Cr; 0.5-4.5 wt % Si; 1.25-3.0 wt % B; 1.0-4.5 wt % Fe; balance Ni and unavoidable impurities.5. A wear resistant component according to claim 1 , wherein the metal matrix composite includes particles of tungsten carbide and a matrix of a cobalt-based alloy claim 1 , wherein the cobalt-based alloy consists of: 20-35 wt % Cr claim 1 , wt % W claim 1 , 0-15 wt % Mo claim 1 , wt % Fe claim 1 , 0-5 Ni claim 1 , 0.05-4 wt % C and balance Co ...

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Номер записи: 77
16-02-2017 дата публикации

METHOD FOR PRODUCING NICKEL POWDER HAVING LOW CARBON CONCENTRATION AND LOW SULFUR CONCENTRATION

Номер: US20170043403A1
Автор: Heguri Shin-ichi, IKEDA Osamu, Kudo Yohei, Ohara Hideki, Ozaki Yoshitomo, Takaishi Kazuyuki, Yoneyama Tomoaki
Принадлежит:

Provided a production method for reducing the content level of sulfur and carbon which are impurities in nickel powder to improve the quality of nickel powder produced by a complexing reduction method. The method of producing nickel powder having low carbon and sulfur concentrations includes: a complexing treatment of adding a complexing agent to a nickel sulfate aqueous solution to form a solution containing nickel complex ions; maintaining the solution containing nickel complex ions at a solution temperature of 150 to 250° C. in a pressure vessel and blowing hydrogen gas into the solution containing nickel complex ions to perform hydrogen reduction to produce nickel powder; washing the nickel powder with water; and then roasting the nickel powder washed with water in a mixed gas atmosphere of nitrogen and hydrogen. 1. A method of producing nickel powder having low carbon and sulfur concentrations , the method sequentially comprising:a complexing treatment of adding a complexing agent to a nickel sulfate aqueous solution to prepare a solution containing nickel complexions;a hydrogen reduction treatment of charging the solution containing nickel complex ions in a pressure vessel, maintaining the solution at a solution temperature of 150 to 250° C., and blowing hydrogen gas into the solution containing nickel complex ions to perform hydrogen reduction to produce nickel powder;a water-washing treatment of washing the nickel powder with water of which amount is at least equal to and at most 5 times larger than a weight of the nickel powder at a solution temperature of 50 to 90° C., or of subjecting a mixture of the nickel powder and water to ultrasonic washing under low pressure, to thereby produce nickel powder having reduced content levels of carbon and sulfur; anda roasting treatment of roasting the nickel powder washed with water in a mixed gas atmosphere of nitrogen and hydrogen having a concentration of 2 to 4% by weight.2. The method of producing nickel powder ...

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Номер записи: 78
16-02-2017 дата публикации

Particulates for additive manufacturing techniques

Номер: US20170044416A1
Автор: John A. SHARON, Tahany I. El-Wardany, Wayde R. Schmidt, Ying She
Принадлежит: Delavan Inc

A particulate for an additive manufacturing technique includes a particulate body formed from a particulate material and a coating disposed over particulate body. The coating includes a carbonaceous material that has a reflectivity that is lower than a reflectivity of the particulate material to reduce an energy input requirement of the particulate such that less energy is necessary to fuse the particulate into a layer of an article fabricated using the additive manufacturing technique. A method of making particulate is also disclosed.

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Номер записи: 79
16-02-2017 дата публикации

CO3W3C Fishbone-Like Hard Phase-Reinforced Fe-Based Wear-Resistant Coating and Preparation Thereof

Номер: US20170044673A1
Автор: GU Fanjun, Lai Wei, Liu Jianyang, TAO Qing, WANG Cong, WANG Jian
Принадлежит: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

A CoWC fishbone-like hard phase-reinforced Fe-based wear-resistant coating and the preparation thereof, which belongs to the field of a wear-resistant coating on the surface of a material and a preparation method thereof. The wear-resistant coating comprises: 1.89-3.77% of C, 5.4-11.7% of Cr, 3.3-7.15% of Ni, 28.81-57.83% of W, 4.2-8.4% of Co, 0.03-0.065% of Si and the balance of Fe. The preparation process of the wear-resistant coating comprises: (1) before plasma cladding, pretreating a matrix; (2) pretreating an iron-based alloy powder; and (3) adjusting the process parameters of plasma cladding, preparing a cladding layer with a predetermined width and a predetermined thickness, and naturally cooling same down in air. The wear-resistant coating is simple in process; the prepared cladding layer has a strong metallurgical bonding property with the matrix structure, so that the best performance matching between the ceramic phase of the cladding layer and the matrix can be achieved; a fishbone-like hard phase CoWC has a very high hardness value and plays the role of a framework in the frictional process to reduce the wear of the matrix structure, thereby achieving an excellent wear resistance; plasma cladding is convenient to operate, and can be automatized; and the prepared wear-resistant layer is high in size precision and can be widely applied to surface modification of mechanical parts. 1. A CoWC fish-bone-shape hard-phase reinforced Fe-based wear-resistant coating , characterized in that: the wear-resistant coating consists of the following alloy powder elements in weight percentage: C: 1.89-3.77% , Cr: 5.4-11.7% , Ni: 3.3-7.15% , W: 28.81-57.83% , Co: 4.2-8.4% , Si: 0.03-0.065% , and the remaining is Fe.2. A method for preparing the CoWC fish-bone-shape hard-phase reinforced Fe-based wear-resistant coating according to claim 1 , characterized in that: a plasma cladding process is used to clad the Fe-based WC alloy powder on a surface of a metal matrix to form ...

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Номер записи: 80
18-02-2021 дата публикации

MULTILAYER CERAMIC ELECTRONIC COMPONENT AND ELECTRICALLY CONDUCTIVE PASTE FOR RESIN ELECTRODE

Номер: US20210050152A1
Автор: ZENZAI Kota
Принадлежит:

A multilayer ceramic capacitor includes a ceramic base body including ceramic layers and internal electrode layers, which are stacked on each other, and a pair of external electrodes provided on the end surfaces of the ceramic base body and electrically connected to the internal electrode layers. Each of the external electrodes includes an underlying electrode layer and a resin external electrode layer stacked on the underlying electrode layer. The resin external electrode layer includes a thermosetting resin, a metal powder, and an alkyl-based silane coupling agent. 1. A multilayer ceramic electronic component comprising:a ceramic base body including a plurality of ceramic layers stacked on each other and a plurality of internal electrode layers stacked on each other, a first main surface and a second main surface that face each other in a stacking direction, a first side surface and a second side surface that face each other in a width direction perpendicular or substantially perpendicular to the stacking direction, and a first end surface and a second end surface that face each other in a length direction perpendicular or substantially perpendicular to the stacking direction and the width direction; anda pair of external electrodes that are electrically connected to the internal electrode layers, each external electrode being provided on one of the first and second end surfaces, the first and second main surfaces, and the first and second side surfaces; wherein each of the pair of external electrodes includes an underlying electrode layer electrically connected to the internal electrode layers and a resin external electrode layer stacked on the underlying electrode layer; andthe resin external electrode layer includes an alkyl-based silane coupling agent.2. The multilayer ceramic electronic component according to claim 1 , whereinthe resin external electrode layer includes a thermosetting resin and a metal powder; andthe alkyl-based silane coupling agent at least ...

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Номер записи: 81
13-02-2020 дата публикации

SYSTEMS AND METHODS FOR HIGH STRENGTH TITANIUM WIRE ADDITIVE MANUFACTURING

Номер: US20200047248A1
Автор: Haynes Noel C., PANZA-GIOSA ROQUE
Принадлежит: GOODRICH CORPORATION

A method of titanium wire additive manufacturing is disclosed. The method may comprise mixing a plurality of powdered metals comprising titanium, iron, vanadium, and aluminum to produce a powder blend, sintering the powder blend to form a billet, performing a wire forming operation to produce a worked wire, heat treating the worked wire to produce a heat treaded wire, loading the heat treated wire into a wirefeed additive manufacturing machine, and producing a metallic component from the heat treated wire. The titanium may be a titanium hydride powder. 1. A method of titanium wire additive manufacturing , comprising:mixing a plurality of powdered metals comprising titanium, iron, vanadium, and aluminum to produce a powder blend;sintering the powder blend to form a billet;performing a wire forming operation on the billet to produce a worked wire;heat treating the worked wire to produce a heat treated wire;loading the heat treated wire into a wirefeed additive manufacturing machine configured to deposit the heat treated wire; andproducing a metallic component from the heat treated wire.2. The method of claim 1 , wherein the titanium is a titanium hydride powder.3. The method of claim 2 , wherein the powder blend comprises between 4% and 6% by weight iron claim 2 , between 0.5% to 2% by weight aluminum claim 2 , and between 6% to 9% by weight vanadium.4. The method of claim 3 , wherein the sintering is performed between 900° F. and 1600° F. and under a vacuum.5. The method of claim 3 , wherein the wire forming operation includes at least one of rotary swaging claim 3 , rolling claim 3 , or extrusion.6. The method of claim 5 , wherein the wire forming operation includes at least one of a metal pickling treatment claim 5 , an intermediate heat treatment claim 5 , or applying anti-oxidation coating.7. The method of claim 6 , wherein at least one of the rotary swaging claim 6 , rolling claim 6 , extrusion claim 6 , metal pickling treatment claim 6 , or intermediate heat ...

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Номер записи: 82
26-02-2015 дата публикации

FUNCTIONAL MATERIAL

Номер: US20150054158A1
Автор: Sekine Shigenobu, Sekine Yurina
Принадлежит: NAPRA CO., LTD.

A functional material includes at least two kinds of particles selected from the group consisting of first metal composite particles, second metal composite particles and third metal composite particles. The first metal composite particles, the second metal composite particles and the third metal composite particles each contain two or more kinds of metal components. The melting point T1(° C.) of the first metal composite particles, the melting point T2(° C.) of the second metal composite particles and the melting point T3(° C.) of the third metal composite particles satisfy a relationship of T1>T2>T3. 1. A functional material comprising at least two kinds of particles selected from the group consisting of first metal composite particles , second metal composite particles and third metal composite particles ,the first metal composite particles, the second metal composite particles and the third metal composite particles each containing two or more kinds of metal components,the melting point T1(° C.) of the first metal composite particles, the melting point T2(° C.) of the second metal composite particles and the melting point T3(° C.) of the third metal composite particles satisfying a relationship of T1>T2>T3.4. The functional material of claim 1 , wherein the first metal composite particles claim 1 , the second metal composite particles and the third metal composite particles are dispersed in a fluid dispersion medium.5. An electronic device comprising a semiconductor substrate and a columnar conductor claim 1 , the columnar conductor being made of the functional material of and embedded in the semiconductor substrate in an electrically insulated state.6. The electronic device of claim 5 , further comprising an electronic element claim 5 , wherein the electronic element is a wiring conductor claim 5 , another electronic device or an electronic component claim 5 , a conductive part of which is at least partially diffusion bonded to at least one of opposite ends of ...

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Номер записи: 83
20-02-2020 дата публикации

PRODUCTS INCORPORATING CARBON NANOMATERIALS AND METHODS OF MANUFACTURING THE SAME

Номер: US20200055115A1
Автор: Caudill Charles Harrison Benton
Принадлежит:

Carbon nanotubes (CNTs), graphene platelets, or other forms of graphene are incorporated into raw materials before products and product components are manufactured from the materials. For example, CNTs may be incorporated into metallic powders, which can be pressed and sintered into metallic products and product components. CNTs or graphene platelets can also be incorporated into plastics, ceramics, metals, or other materials used to construct products and product components by additive manufacturing. When incorporated into the products and product components, the CNTs or graphene platelets can improve various properties of the products and product components, such as thermal conductivity, electrical conductivity, or structural properties. 1. A method comprising:mixing carbon nanomaterials into a liquid matrix or a matrix curable by a physical process to generate a graphene-based material; andmanufacturing a product or product component using the graphene-based material.2. The method of claim 1 , wherein the carbon nanomaterials comprise carbon nanotubes claim 1 , graphene platelets claim 1 , one or more fullerenes claim 1 , or linear acetylenic carbon.3. The method of claim 2 , comprising mixing the carbon nanotubes into the matrix curable by the physical process.4. The method of claim 3 , wherein the matrix comprises a metallic powder claim 3 , and wherein manufacturing the product or the product component using the graphene-based material comprises pressing and sintering the graphene-based material.5. The method of claim 4 , further comprising aligning the carbon nanotubes before sintering.6. The method of claim 3 , wherein the matrix comprises a metallic powder claim 3 , and wherein manufacturing the product or the product component using the graphene-based material comprises additive manufacturing.7. The method of claim 6 , wherein the additive manufacturing comprises printing.8. The method of claim 2 , comprising incorporating the carbon nanotubes into the ...

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Номер записи: 84
01-03-2018 дата публикации

FRICTION MATERIAL

Номер: US20180058528A1
Автор: Canuti Anna Maria, Galimberti Paolo, Sin Xicola Agustin
Принадлежит:

A friction material, such as those belonging to the NAO or LS classes. The friction material is substantially free from copper and includes non-spherical particles in the form of powders and/or fibres each constituted by a preferably ferrous metallic core and by an at least partial coating of core formed at least partially or totally by tin and/or tin compounds, such as intermetallic Fe—Sn compounds. 1. An asbestos-free friction material comprising:{'sup': '2', 'at least one fibrous base including inorganic and/or organic and/or metallic fibers, at least one filler and at least one binder, the friction material being substantially free from copper and including non-spherical particles that are constituted by a metallic core of asymmetric shape at least partially coated with a layer of at least one of tin or tin compounds and having a granulometry comprised between 0.2 and 600 microns and wherein the non-spherical particles have a surface area between 0.1 and 0.3 m/g.'}2. The asbestos-free friction material of claim 1 , further belonging to classes known as NAO or LS.3. The asbestos-free friction material of claim 1 , wherein the metallic core comprises iron.4. The asbestos-free friction material of claim 1 , wherein the metallic core comprises steel.5. The asbestos-free friction material of claim 1 , wherein the metallic core comprises one of iron or steel claim 1 , and wherein tin is present in the at least partial coating in a form of intermetallic iron-tin compounds of a type FeSn(where 1 Подробнее

Номер записи: 85
21-02-2019 дата публикации

COIL COMPONENT

Номер: US20190057801A1
Автор: Cho Yoon Hee, Lee Hwan Soo, Song Sung Min
Принадлежит:

A coil component includes a body having a volume of 2.4 mmor less and including at least one coil member embedded therein, and first and second external electrodes partially or entirely formed on first and second surfaces of the body opposing each other, respectively, wherein the product of inductance Ls (μH) and S/l (mm) is 0.45 (μH·mm) or more to 0.75 (μH·mm) or less in which S (mm) is an area of regions of the first and second external electrodes disposed on the first and second surfaces of the body, and 1 (mm) is a minimum spaced distance between the first and second external electrodes formed on the first and second surfaces of the body. 1. A coil component comprising:{'sup': '3', 'a body having a volume of 2.4 mmor less and including at least one coil member embedded therein; and'}first and second external electrodes partially or entirely formed on first and second surfaces of the body opposing each other, respectively,{'sup': '2', 'wherein the product of inductance Ls (μH) and S/l (mm) is 0.45 (μH·mm) or more to 0.75 (μH·mm) or less in which S (mm) is an area of regions of the first and second external electrodes disposed on the first and second surfaces of the body, and 1 (mm) is a minimum spaced distance between the first and second external electrodes formed on the first and second surfaces of the body.'}2. The coil component of claim 1 , wherein the body has a volume of 2.2 mmor less.3. The coil component of claim 1 , wherein the product of inductance Ls (μH) and S/l (mm) is 0.50 (μH·mm) or more to 0.70 (μH·mm) or less.4. The coil component of claim 1 , wherein the inductance Ls is in a range from 0.68 to 2.2 μH.5. The coil component of claim 1 , wherein a self resonant frequency (SRF) thereof is in a range from 95 to 105 MHz.6. The coil component of claim 1 , wherein the first and second external electrodes are extended to at least one of the other surfaces of the body connected to the first and second surfaces of the body.7. The coil component of claim ...

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Номер записи: 86
01-03-2018 дата публикации

METHOD FOR PRODUCING A SINTERED R-IRON-BORON MAGNET

Номер: US20180061540A1
Автор: GENG Guoqiang, LI Dongdong, Wang Qingkai, Zhang Mingjie
Принадлежит:

A method for producing a sintered R-iron (Fe)-boron (B) magnet, the method including: (1) producing a sintered magnet R1-Fe—B-M; (2) washing the sintered magnet using an acid solution and deionized water, successively, and drying the sintered magnet to yield a treated magnet; (3) mixing a heavy rare earth element powder RX, an organic solid powder EP and an organic solvent ET to yield a slurry RXE, coating the slurry RXE on the surface of the treated magnet, and drying the treated magnet to yield a treatment unit; and (4) heating, quenching, and then aging the treatment unit. 1. A method for producing a sintered R-Iron-Boron (R—Fe—B) magnet , the method comprising:(1) producing a sintered magnet R1-Fe—B-M, wherein R1 is neodymium (Nd), praseodymium (Pr), terbium (Tb), dysprosium (Dy), gadolinium (Gd), holmium (Ho), or a combination thereof, and accounts for 27-34 wt. % of the total weight of the sintered magnet R1-Fe—B-M; the boron (B) accounts for 0.8-1.3 wt. % of the total weight of the sintered magnet R1-Fe—B-M; M is titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), cobalt (Co), gallium (Ga), copper (Cu), silicon (Si), aluminum (Al), zirconium (Zr), niobium (Nb), tungsten (W), molybdenum (Mo), or a combination thereof, and accounts for 0-5 wt. % of the total weight of the sintered magnet R1-Fe—B-M; and the rest is Fe;(2) washing the sintered magnet using an acid solution and deionized water, successively, and drying the sintered magnet to yield a treated magnet;(3) mixing a heavy rare earth element powder RX, an organic solid powder EP and an organic solvent ET to yield a slurry RXE, coating the slurry RXE on a surface of the treated magnet, and drying the treated magnet to yield a treatment unit comprising a REX layer, wherein the heavy rare earth element powder RX is Dy powder, Tb powder, hydrogenated Dy powder, hydrogenated Tb powder, dysprosium fluoride powder, terbium fluoride powder, or a combination thereof, the organic solid powder EP is rosin- ...

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Номер записи: 87
28-02-2019 дата публикации

Titanium Sintered Body, Ornament, And Timepiece

Номер: US20190061003A1
Автор: ITOTSUBO Keisuke
Принадлежит:

A titanium sintered body has an average crystal grain diameter on the surface of more than 30 μm and 500 μm or less, and a Vickers hardness on the surface of 300 or more and 800 or less. In the titanium sintered body, it is preferred that crystal structures on the surface have an average aspect ratio of 1 or more and 3 or less. Further, in the titanium sintered body, it is preferred that the oxygen content on the surface is 2000 ppm by mass or more and 5500 ppm by mass or less. Further, in the titanium sintered body, it is preferred that titanium is contained as a main component, and an α-phase stabilizing element and a β-phase stabilizing element are also present. 1. A titanium sintered body , comprising:particles of a titanium based powder sintered to one another;an average crystal grain diameter on a surface of the body of more than 30 and 500 μm or less; anda Vickers hardness on the surface of 300 or more and 800 or less.2. The titanium sintered body according to claim 1 , wherein crystal structures on the surface have an average aspect ratio of 1 or more and 3 or less.3. The titanium sintered body according to claim 1 , wherein an oxygen content on the surface is 2000 ppm by mass or more and 5500 ppm by mass or less.4. The titanium sintered body according to claim 1 , wherein a constituent material of the body comprises:titanium as a main component;an α-phase stabilizing element; anda β-phase stabilizing element.5. An ornament comprising the titanium sintered body according to .6. A timepiece comprising the titanium sintered body according to .7. A titanium sintered body claim 1 , comprising: titanium as a main component;', 'an α-phase stabilizing element; and', 'a β-phase stabilizing element;, 'particles of a titanium alloy powder sintered to one another, the titanium alloy containingwherein a total occupancy ratio of the α-phase stabilizing element and the β-phase stabilizing element on a surface of the body is 95% or more;an average crystal grain diameter on ...

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Номер записи: 88
28-02-2019 дата публикации

CUTTING ELEMENTS AND METHODS FOR FABRICATING DIAMOND COMPACTS AND CUTTING ELEMENTS WITH FUNCTIONALIZED NANOPARTICLES

Номер: US20190061004A1
Автор: Filonenko Vladimir P., Khabashesku Valery N.
Принадлежит:

A polycrystalline diamond compact (PDC) cutting element includes a substrate and a polycrystalline diamond compact. The substrate comprises a ceramic-metal composite material including hard ceramic particles in a metal matrix. The polycrystalline diamond compact includes interbonded diamond particles. Interstitial material disposed within interstitial spaces between the interbonded diamond particles comprises aluminum and at least one element of the ceramic-metal composite material of the substrate. A method of manufacturing such a PDC cutting element includes forming a mixture including diamond particles and particles of aluminum, and subjecting the mixture and a substrate to a high pressure, high temperature (HPHT) sintering process. 1. A polycrystalline diamond compact (PDC) cutting element , comprising:a substrate comprising a ceramic-metal composite material including hard ceramic particles in a metal matrix, the metal matrix comprising at least one of cobalt, iron, and nickel; anda polycrystalline diamond compact disposed on the substrate, the polycrystalline diamond compact including interbonded diamond particles, the interbonded diamond particles including a first plurality of diamond particles having an average particle size in a range extending from about three microns (3 μm) to about thirty microns (30 μm) and a second plurality of diamond particles having an average particle size in a range extending from about eighty nanometers (80 nm) to about one hundred nanometers (100 nm), and interstitial material disposed within interstitial spaces between the interbonded diamond particles, the interstitial material comprising aluminum and at least one element of the ceramic-metal composite material of the substrate.2. The PDC cutting element of claim 1 , wherein an atomic concentration of the aluminum in the polycrystalline diamond compact decreases from an exposed working surface of the polycrystalline diamond compact in a direction extending toward an interface ...

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Номер записи: 89
28-02-2019 дата публикации

BRAZE MATERIALS AND EARTH-BORING TOOLS COMPRISING BRAZE MATERIALS

Номер: US20190061068A1
Автор: Bird Marc W., Chen Wei, Stevens John H.
Принадлежит:

A method includes disposing a braze material adjacent a first body and a second body; heating the braze material and forming a transient liquid phase; and transforming the transient liquid phase to a solid phase and forming a bond between the first body and the second body. The braze material includes copper, silver, zinc, magnesium, and at least one material selected from the group consisting of nickel, tin, cobalt, iron, phosphorous, indium, lead, antimony, cadmium, and bismuth. 1. A braze material comprising:copper;from about 50% to about 70% silver by weight;at least one element selected from the group consisting of nickel and titanium; andat least one element selected from the group consisting of indium, tin, zinc zinc, and magnesium.2. The braze material of claim 1 , wherein the braze material comprises at least two elements selected from the group consisting of indium claim 1 , tin claim 1 , zinc and magnesium.3. The braze material of claim 1 , wherein the braze material comprises zinc.4. The braze material of claim 1 , wherein the braze material comprises metallic particles having an average particle size in a range from about 1 μm to about 15 μm.5. The braze material of claim 1 , further comprising an organic binder.6. The braze material of claim 1 , wherein the braze material comprises a first plurality of metallic particles and a second plurality of metallic particles interspersed with the first plurality of metallic particles.7. The braze material of claim 6 , wherein the particles of the first plurality comprise a first material having a first composition and the particles of the second plurality comprise a second material having a second composition different from the first composition.8. The braze material of claim 1 , wherein the braze material comprises at least one intermetallic compound.9. The braze material of claim 1 , further comprising nanoparticles comprising at least one material selected from the group consisting of carbides claim 1 , ...

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Номер записи: 90
04-03-2021 дата публикации

TITANIUM-BASED POROUS BODY AND METHOD OF PRODUCING THE SAME

Номер: US20210066723A1
Автор: HAYAKAWA Masashi, TSUMAGARI Syogo
Принадлежит: TOHO TITANIUM CO., LTD.

To provide a titanium-based porous body that has high void fraction to ensure gas permeability and water permeability for practical use as an electrode and a filter, has a large specific surface area to ensure conductivity and sufficient reaction sites with a reaction solution or a reaction gas, thus showing excellent reaction efficiency, and contains less contaminants because of no organic substance used. A titanium-based porous body having a specific void fraction and a high specific surface area is obtained by filling an irregular-shaped titanium powder having an average particle size of 10 to 50 μm in a dry system without using any binder or the like into a thickness of 4.0×10to 1.6 mm, and sintering the irregular-shaped titanium powder at 800 to 1100° C. 1. A sheet-like titanium-based porous body having a specific surface area of 4.5×10to 1.5×10m/g , a void fraction of 50 to 70% , a thickness of 4.0×10to 1.6 mm , and a surface roughness of at least one surface of 8.0 μm or less ,wherein the specific surface area is measured by a BET method according to JIS Z 8831:2013,wherein the surface roughness is the arithmetic mean roughness Ra determined according to JIS B 0601-2001, and{'sup': 3', '3, 'claim-text': {'br': None, 'i': M/V', 'D, 'Void fraction (%)=(1−()/)×100\u2003\u2003(A).'}, 'wherein the void fraction is a pore ratio per unit volume of the sheet-like titanium-based porous body in percentage and calculated according to a following formula (A) based on a volume V (cm) of the sheet-like titanium-based porous body, a mass M (g) of the sheet-like titanium-based porous body, and a true density D (g/cm) of the sheet-like titanium-based material2. A method of producing a sheet-like titanium-based porous body , the method comprising:placing an irregular-shaped titanium-based powder having an average particle size of 10 to 50 μm, a D90 less than 75 μm, and an average circularity of 0.50 to 0.90 on a setter in a dry system without pressurization, andsintering the ...

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Номер записи: 91
12-03-2015 дата публикации

METHOD FOR FABRICATING A BIOCOMPATIBLE MATERIAL HAVING A HIGH CARBIDE PHASE AND SUCH MATERIAL

Номер: US20150068362A1
Автор: Lawrynowicz Daniel E., Wang Aiguo, Zeng Haitong, Zhang Zongtao
Принадлежит:

A method of fabricating a material having a high concentration of a carbide constituent. The method may comprise adding a carbide source to a biocompatible material in which a weight of the carbide source is at least approximately 10% of the total weight, heating the carbide source and the biocompatible material to a predetermined temperature to melt the biocompatible material and allow the carbide source to go into solution to form a molten homogeneous solution, and impinging the molten homogeneous solution with a high pressure fluid to form spray atomized powder having carbide particles. The size of a particle of carbide in the atomized powder may be approximately 900 nanometers or less. The biocompatible material may be cobalt chrome, the carbide source may be graphite, and the fluid may be a gas or a liquid. 1. (canceled)2. Method of fabricating a material having a high concentration of a carbide constituent and utilizing said material to coat at least one surface of a component , said method comprising:adding a carbide source to cobalt chrome or an alloy thereof, in which a weight of the carbide source is at least approximately 50% of a total weight of the carbide source and the cobalt chrome or the alloy thereof;heating the carbide source and the cobalt chrome or the alloy thereof to a predetermined temperature to melt the cobalt chrome or the alloy thereof and allow the carbide source to go into solution so as to form a molten homogeneous solution; andimpinging the molten homogeneous solution with a high pressure fluid so as to form spray atomized powder having carbide particles,in which a size of a carbide particle in the atomized powder is approximately 900 nanometers or less, andcoating the at least one surface of the component with the spray atomized powder having carbide particles.3. The method according to claim 2 , in which the size of said carbide particle in the atomized powder is within a range of approximately 10-200 nanometers.4. The method ...

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Номер записи: 92
12-03-2015 дата публикации

SYNTHESIS AND ANNEALING OF MANGANESE BISMUTH NANOPARTICLES

Номер: US20150068646A1
Автор: Rowe Michael Paul
Принадлежит: Toyota Motor Engineering & Manufacturing North America, Inc.

The claimed invention provides a wet chemical method to prepare manganese bismuth nanoparticles having a particle diameter of 5 to 200 nm. When annealed at 550 to 600K in a field of 0 to 3T the nanoparticles exhibit a coercivity of approximately 1T and are suitable for utility as a permanent magnet material. A permanent magnet containing the annealed MnBi nanoparticles is also provided. 1. A method to prepare a manganese-bismuth alloy nanoparticle , comprising:treating Mn powder with a hydride reducing agent in an ether solvent with agitation;adding a solution of a bismuth salt of a long chain carboxylate to the Mn-hydride reducing agent mixture while continuing the agitation;upon completion of the bismuth salt solution addition, adding a an organic amine while continuing the agitation; andcontinuing agitation to form aggregated MnBi nanoparticles.21048. The method according to claim 1 , wherein the hydride treatment comprises treatment at 20-25° C. for 10 to 48 hours followed by treatment at 50 to 70° C. for to hours.3. The method according to claim 1 , wherein the hydride reducing agent is lithium borohydride.4. The method according to claim 1 , wherein an equivalent ratio of hydride to Mn is from 1/1 to 100/1.5. The method according to claim 1 , wherein an atom ratio of Mn to Bi is from 10/1 to 1/10.6. A MnBi nanoparticle having a particle size of 5 to 200 nm and a coercivity of approximately 1T claim 1 , wherein the nanoparticle is prepared according to the method of and annealed at 550 to 650K in a field of 0 to 3 T.7. The MnBi nanoparticle according to claim 6 , wherein the annealment is at 600K in a 3 T field.8. A hard magnet comprising a plurality of MnBi nanoparticles according to . This invention is related to the synthesis and preparation of novel materials for use as strong permanent hard magnets. Many of today's advancing technologies require an efficient and strong hard magnet as a basic component of the device structure. Such devices range from ...

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Номер записи: 93
10-03-2016 дата публикации

METAL NANOPARTICLES FORMED AROUND A NUCLEUS AND SCALABLE PROCESSES FOR PRODUCING SAME

Номер: US20160067776A1
Автор: ZINN Alfred A.
Принадлежит: LOCKHEED MARTIN CORPORATION

Metal nanoparticles and compositions derived therefrom can be used in a number of different applications. Methods for making metal nanoparticles can include providing a first metal salt in a solvent; converting the first metal salt into an insoluble compound that constitutes a plurality of nanoparticle seeds; and after forming the plurality of nanoparticle seeds, reacting a reducing agent with at least a portion of a second metal salt in the presence of at least one surfactant and the plurality of nanoparticle seeds to form a plurality of metal nanoparticles. Each metal nanoparticle can include a metal shell formed around a nucleus derived from a nanoparticle seed, and the metal shell can include a metal from the second metal salt. The methods can be readily scaled to produce bulk quantities of metal nanoparticles. 1. A method comprising:providing a first metal salt in a solvent;converting the first metal salt into an insoluble compound, the insoluble compound comprising a plurality of nanoparticle seeds; andafter forming the plurality of nanoparticle seeds, reacting a reducing agent with at least a portion of a second metal salt in the presence of at least one surfactant and the plurality of nanoparticle seeds to form a plurality of metal nanoparticles, each metal nanoparticle comprising a metal shell formed around a nucleus derived from a nanoparticle seed, and the metal shell comprising a metal from the second metal salt.2. The method of claim 1 , wherein converting the first metal salt into an insoluble compound comprises reducing the first metal salt to form the insoluble compound.3. The method of claim 2 , wherein the first metal salt and the second metal salt are the same.4. The method of claim 2 , wherein the first metal salt and the second metal salt are different.5. The method of claim 2 , wherein at least the first metal salt comprises a copper (II) salt.6. The method of claim 5 , wherein the first metal salt and the second metal salt each comprise a ...

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Номер записи: 94
09-03-2017 дата публикации

ELECTRODE MATERIAL

Номер: US20170066055A1
Автор: HASEGAWA Kosuke, Hayashi Shota, ISHIKAWA Keita, Kitakizaki Kaoru, SUZUKI Nobutaka
Принадлежит: MEIDENSHA CORPORATION

An electrode material wherein Cr-containing particles are finely miniaturized and uniformly dispersed while a Cu portion, which is highly conductive component, is also finely miniaturized and uniformly dispersed. The electrode material is prepared, for example, by: a mixing step (S1) for mixing a Cr powder and a heat resistant element powder; a provisional sintering step (S2) for provisionally sintering the mixed powder to obtain a solid solution of Cr and the heat resistant element; a pulverizing step (S3) for pulverizing the solid solution of Cr and the heat resistant element to obtain a solid solution powder of Cr and the heat resistant element; a molding step (S4) for molding the solid solution powder; a main sintering step (S5) for performing main sintering of the obtained molded body to obtain a sintered body (skeleton) of Cr and the heat resistant element; and a Cu infiltration step (S6) for infiltrating the sintered body of Cr and the heat resistant element with Cu. 18.-. (canceled)9. A method for producing an electrode material , comprising:a step of preparing a powder of a solid solution of Cr and a heat resistant material selected from the group consisting of Mo, W, Ta, Nb, V and Zr, wherein either a peak corresponding to Cr element or a peak corresponding to the heat resistant element, which are observed by X ray diffraction measurement made on the powder of the solid solution, disappears;a step of molding the powder of the solid solution to obtain a molded body and then sintering the molded body to produce a sintered body; anda Cu infiltration step of infiltrating the sintered body with Cu.10. A method for producing an electrode material claim 9 , as claimed in claim 9 , wherein in the powder of the solid solution the volume-based relative particle amount of particles having a particle diameter of 30 μm or less is 50% or more.11. A method for producing an electrode material claim 9 , as claimed in claim 9 , wherein the powder of the solid solution has a ...

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Номер записи: 95
27-02-2020 дата публикации

CUSTOM TITANIUM ALLOY FOR 3-D PRINTING AND METHOD OF MAKING SAME

Номер: US20200063238A1
Автор: YOLTON Charles Frederick
Принадлежит:

A Ti-6Al-4V titanium powder alloy composition having enhanced strength resulting from the addition of one or more of the following elements without requiring an increase in oxygen content: 1. An enhanced strength Ti-6Al-4V titanium powder alloy having the following composition by weight percent:Aluminum—6.3 to 6.7%Vanadium—4.2 to 4.5%Iron—0.25 to 0.4%Oxygen—0.1 to 0.13%Nitrogen—0.02 to 0.05%Carbon—0.04 to 0.08%Hydrogen—0 to 0.0125%Other Elements—0 to 0.4%Titanium—Balance.2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. An enhanced strength Ti-6Al-4V titanium alloy starting bar stock having the following composition by weight percent:Aluminum—6.44Vanadium—4.28Iron—0.20Oxygen—0.09Nitrogen—0.04Carbon—0.05Hydrogen—0.002Yttrium—<0.001Titanium—Balance.9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. A method of increasing the strength of Ti-6Al-4V titanium alloy powder or starting bar stock without increasing oxygen content , comprising adding to the powder or starting bar stock one or more of the following elements:AluminumIronNitrogenCarbon,wherein in the case of alloy powder, the addition results in the following weight percent of the elements for the alloy powder:Aluminum—6.3 to 6.7%Iron—0.25 to 0.4%Nitrogen—0.02 to 0.05%Carbon—0.04 to 0.08%; andwherein in the case of starting bar stock, the addition results in the following weight percent of the elements for the starting bar stock:Aluminum—6.3% to 6.7%Iron—0.15% to 0.30%Nitrogen—0.02% to 0.05%Carbon—0.04% to 0.08%.17. (canceled)18. (canceled)19. A 3-D printing method comprising processing the enhanced strength Ti-6Al-4V titanium powder alloy of with a powder-bed printing system based on e-beam claim 1 , a laser direct melt technology claim 1 , or a binder-jet technology claim 1 , to produce a 3-D printed object.20. A 3-D printing method comprising processing a recycled powder alloy of Ti-6Al-4V titanium alloy with a powder-bed ...

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Номер записи: 96
27-02-2020 дата публикации

Quench and Temper Corrosion Resistant Steel Alloy and Method for Producing the Alloy

Номер: US20200063247A1
Автор: Heck Karl, Kernion Samuel J., Para Shane, Wert David E.
Принадлежит:

A quench and temper steel alloy is disclosed having the following composition in weight percent. 2. The alloy set forth in which contains not more than about 0.35% carbon.3. The alloy as set forth in which contains not more than about 0.02% titanium.4. The alloy as set forth in which contains at least about 0.15% nitrogen.5. The alloy set forth in which contains at least about 9.5% chromium.6. The alloy set forth in which contains about 1.25-1.75% molybdenum.7. The alloy set forth in which contains about 2-3% cobalt.8. The alloy set forth in which contains at least about 3.2% nickel.9. The alloy as set forth in which contains not more than about 0.5% vanadium.10. The alloy as set forth in wherein C+N is about 0.3-0.6%.11. The alloy as set forth in which contains not more than about 0.7% copper.13. The alloy as set forth in which contains not more than about 0.30% carbon.14. The alloy as set forth in which contains at least about 0.3% copper.15. The alloy as set forth in which contains not more than about 0.01% titanium.16. A quenched and tempered steel article made from the alloy set forth in which has a tensile strength of at least 280 ksi.17. The steel article set forth in which has a fracture toughness (K) of at least about 65 ksi√in when tested in accordance with ASTM Standard Test Procedure E1290.18. The steel article set forth in which has sufficient general corrosion resistance such that the article does not rust after 200 hours when tested in accordance with ASTM Standard Test Procedure B 117.19. The steel article as set forth in which has sufficient pitting corrosion resistance such that the article has a pitting potential of at least 90 mV when tested in accordance with ASTM Standard Test procedure G61 modified by using round bar samples.21. The aerospace structural component as set forth in wherein the component is selected from the group consisting of one or more of landing gear claim 20 , a rotatable shaft claim 20 , an actuator claim 20 , flap tracks ...

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Номер записи: 97
11-03-2021 дата публикации

SHOT USED FOR BLAST PROCESSING

Номер: US20210069864A1
Автор: Ishikawa Masayuki, KATO Yuto, TANIGUCHI Hayato, TANUMA Naoya
Принадлежит: SINTOKOGIO, LTD.

The present disclosure relates to a shot used for blast processing, the shot being made of an iron-based alloy containing C: 0.20 to 0.50% by mass, Si: 0.50 to 1.10% by mass, and Mn: 0.50 to 1.15% by mass as additive elements, in which a mass ratio of C to Si is 0.30 to 0.75, a mass ratio of C to Mn is 0.30 to 0.75, and a mass ratio of Si to Mn is 0.70 to 1.60, and a Vickers hardness of the shot is HV 400 to 800. 1: A shot used for blast processing ,the shot being made of an iron-based alloy containing C: 0.20 to 0.50% by mass, Si: 0.50 to 1.10% by mass, and Mn: 0.50 to 1.15% by mass as additive elements, whereina mass ratio of the C to the Si is 0.30 to 0.75, a mass ratio of the C to the Mn is 0.30 to 0.75, and a mass ratio of the Si to the Mn is 0.70 to 1.60, anda Vickers hardness of the shot is HV 400 to 800.2: The shot according to claim 1 , wherein the total content of the C claim 1 , the Si claim 1 , and the Mn is 1.80 to 2.40% by mass.3: The shot according to claim 1 , wherein the iron-based alloy further contains 0.30 to 1.0% by mass of at least one element selected from the group consisting of Cr claim 1 , Ni claim 1 , Cu claim 1 , Mo claim 1 , Al claim 1 , B claim 1 , V claim 1 , Nb claim 1 , and Ti.4: The shot according to claim 1 , wherein the shot is substantially formed from a tempered martensite phase.5: The shot according to claim 1 , wherein the number of particles having blowholes is 5% or less of the entire shot.6: The shot according to claim 1 , wherein claim 1 , when a length of the particle in a longitudinal direction is designated as L and a maximum diameter in a direction perpendicular to the longitudinal direction is designated as S claim 1 , the number of the particles in which L/S is 2.0 or more is 5% or less of the entire shot.7: The shot according to claim 2 , wherein the iron-based alloy further contains 0.30 to 1.0% by mass of at least one element selected from the group consisting of Cr claim 2 , Ni claim 2 , Cu claim 2 , Mo claim 2 , ...

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Номер записи: 98
09-03-2017 дата публикации

INSTRUMENT, PROTECTIVE SHEET, AND ANTIBACTERIAL FILM

Номер: US20170066929A1
Автор: HAMANO Mitsumasa, NAGASAKI Hideo, NARIYUKI Fumito, Omae Norihiro, SHIBATA Michihiro, SHIRATSUCHI Setsuko
Принадлежит: FUJIFILM Corporation

Provided is an instrument including a hydrophilic processed portion on at least a portion of an outer surface thereof. The hydrophilic processed portion contains a hydrophilic polymer and a silver-containing antibacterial agent, and a water contact angle of a surface of the hydrophilic processed portion is equal to or less than 80°. Therefore, the instrument has excellent hydrophilicity and antibacterial properties. 1. An instrument comprising:a hydrophilic processed portion on at least a portion of an outer surface thereof,wherein the hydrophilic processed portion contains a hydrophilic polymer and a silver-containing antibacterial agent,a water contact angle of a surface of the hydrophilic processed portion is equal to or less than 80°, and{'sup': '2', 'an amount of silver ions per unit area of the hydrophilic processed portion that is measured by the following extraction test is equal to or greater than 15 ng/cm,'}{'b': 1', '500, 'sup': 2', '2, 'Extraction condition: A / normal nutrient broth medium specified in JIS Z 2801:2010 is used as an extractant; a temperature of the extractant is controlled within a range of 35±1° C.; the extractant is brought into contact with the surface of the hydrophilic processed portion for 1 hour; an amount of silver ions extracted into the extractant is measured; the obtained value is divided by a contact area between the surface of the hydrophilic processed portion and the extractant, thereby obtaining an amount of silver ions per unit area; and herein, a unit of the amount of silver ions is ng, a unit of the contact area is cm, and a unit of the amount of silver ions per unit area is ng/cm.'}2. The instrument according to claim 1 ,wherein the water contact angle of the surface of the hydrophilic processed portion is equal to or less than 60°, anda water absorption rate of the hydrophilic processed portion is less than 10 wt %.3. The instrument according to claim 1 ,wherein the hydrophilic processed portion is formed using a ...

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Номер записи: 99
29-05-2014 дата публикации

PROCESS FOR PRODUCTION OF SINTERED COPPER ALLOY SLIDING MATERIAL AND SINTERED COPPER ALLOY SLIDING MATERIAL

Номер: US20140147326A1
Автор: Tomikawa Takashi, Wada Hitoshi, YOKOTA HIROMI, Yoshitome Daisuke
Принадлежит: TAIHO KOGYO CO., LTD.

Seizure resistance and wear resistance of Cu—Bi—In copper-alloy sliding material are enhanced by forming a soft phase of as pure as possible Bi. Mixed powder of Cu—In cuprous alloy powder and Cu—Bi containing Cu-based alloy powder is used. A sintering condition is set such that Bi moves outside particles of said Cu—Bi containing Cu-based powder and forms a Bi grain-boundary phase free of In, and In diffuses from said Cu—In containing Cu-based powder to said Cu—Bi containing Cu-based powder. 1. A method for producing a sintered copper-alloy sliding material , which contains In , Bi and Sn and , balance consisting of Cu and inevitable impurities , characterized in that a mixed Cu-based alloy powder consisting of (a) Cu—In—Sn containing Cu-based powder or Cu—In containing Cu-based powder and Cu—Sn containing Cu-based powder , and (b) Cu—Bi containing Cu-based alloy powder or Cu—Bi—Sn containing Cu-based alloy powder is used , and further a sintering condition is set such that Bi moves outside particles of said Cu—Bi containing Cu-based powder or said Cu—Bi—Sn containing Cu-based powder and form a Bi grain-boundary phase free of In , and In diffuses from said Cu—In—Sn containing Cu-based powder or said Cu—In containing Cu-based powder to said mixed Cu-based alloy powder.2. A method for producing a sintered copper-alloy sliding material according to claim 1 , characterized in that the sintered copper alloy contains claim 1 , by mass percentage claim 1 , from 0.3 to 15% of In claim 1 , from 0.5 to 30% of Bi claim 1 , and from more than 2 to 15% of Sn and In in total amount.3. A method for producing a sintered copper-alloy sliding material according to claim 1 , characterized in that sintering is carried out twice at 700 to 950 degrees C. for 5 to 60 minutes.4. A sintered copper-alloy sliding material containing claim 1 , by mass percentage claim 1 , from 0.3 to 15% of In claim 1 , from 0.5 to 30% of Bi claim 1 , and from more than 2.0 to 15% of Sn plus In claim 1 , ...

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Номер записи: 100