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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 4065. Отображено 100.
05-01-2012 дата публикации

Methods of fabricating a polycrystalline diamond structure

Номер: US20120000136A1
Автор: Mohammad N. Sani
Принадлежит: US Synthetic Corp

In an embodiment, a method of fabricating a polycrystalline diamond structure includes forming an assembly including a sintered polycrystalline diamond body positioned between an aluminum-containing layer and a substrate. The method further includes subjecting the assembly to a high-pressure/high-temperature process to form the polycrystalline diamond structure including a polycrystalline diamond table bonded to the substrate.

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Номер записи: 1
10-06-2008 дата публикации

ИНСТРУМЕНТ ДЛЯ ШЛИФОВАНИЯ ВНУТРЕННИХ ПОВЕРХНОСТЕЙ ОТВЕРСТИЙ

Номер: RU0000073874U1
Автор: Сухонос Сергей Иванович
Принадлежит: Сухонос Сергей Иванович

Инструмент для шлифования внутренних поверхностей отверстий, функция которого - работа боковой цилиндрической поверхностью, состоящий из держателя и закрепленной на нем цилиндрической головки, рабочая часть которой представляет собой цилиндрический слой с распределенной по его объему смеси связанных посредством связующего вещества алмазных зерен, процентное содержание которых в абразивном инструменте составляет более 50% от объема рабочей части инструмента, а остальное пространство заполнено связующим веществом, в качестве которого использован металл или сплавы, отличающийся тем, что толщина слоя рабочей части составляет не менее трех диаметров абразивных зерен. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 73 874 (13) U1 (51) МПК C22C 26/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2008104624/22 , 12.02.2008 (24) Дата начала отсчета срока действия патента: 12.02.2008 (45) Опубликовано: 10.06.2008 (72) Автор(ы): Сухонос Сергей Иванович (RU) (73) Патентообладатель(и): Сухонос Сергей Иванович (RU) U 1 7 3 8 7 4 R U Ñòðàíèöà: 1 U 1 Формула полезной модели Инструмент для шлифования внутренних поверхностей отверстий, функция которого - работа боковой цилиндрической поверхностью, состоящий из держателя и закрепленной на нем цилиндрической головки, рабочая часть которой представляет собой цилиндрический слой с распределенной по его объему смеси связанных посредством связующего вещества алмазных зерен, процентное содержание которых в абразивном инструменте составляет более 50% от объема рабочей части инструмента, а остальное пространство заполнено связующим веществом, в качестве которого использован металл или сплавы, отличающийся тем, что толщина слоя рабочей части составляет не менее трех диаметров абразивных зерен. 7 3 8 7 4 (54) ИНСТРУМЕНТ ДЛЯ ШЛИФОВАНИЯ ВНУТРЕННИХ ПОВЕРХНОСТЕЙ ОТВЕРСТИЙ R U Адрес для переписки: 127410, Москва, ул. Стандартная, 25, кв.52, Е.В. Мохову U 1 U 1 ...

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Номер записи: 2
12-09-2017 дата публикации

ДИСК СФЕРИЧЕСКИЙ СО СПЛОШНОЙ РЕЖУЩЕЙ КРОМКОЙ ДЛЯ ПОЧВООБРАБАТЫВАЮЩИХ ОРУДИЙ

Номер: RU0000173799U1
Автор: Коршунов Владимир Яковлевич
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования "Брянский государственный аграрный университет"

Полезная модель относится к области почвообрабатывающих орудий, в частности к сферическим дискам со сплошной режущей кромкой, которые используются в сеялках, плугах, лущильниках и боронах. Техническим результатом является увеличение времени работы сферического диска и значительное сокращение их расхода при обработке почвы. Технический результат достигается тем, что на предварительно обработанную точением переднюю поверхность режущей части сферического диска со сплошной режущей кромкой наносится гальваническое алмазно-никелевое покрытие. Конструкция сферического диска со сплошной режущей кромкой (Фиг. 1) состоит из корпуса 1 и гальванического алмазно-никелевого покрытия 2, которое наносится на предварительно обработанную точением переднюю поверхность режущей части сферического диска. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК A01B 23/06 A01B 15/16 C22C 19/00 C22C 26/00 (11) (13) 173 799 U1 (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2017110107, 27.03.2017 (24) Дата начала отсчета срока действия патента: 27.03.2017 12.09.2017 Приоритет(ы): (22) Дата подачи заявки: 27.03.2017 (56) Список документов, цитированных в отчете о поиске: RU 63633 U1, 10.06.2007. RU 71851 (45) Опубликовано: 12.09.2017 Бюл. № 26 U1, 27.03.2008. RU 77743 U1, 10.11.2008. RU 2005125980 A, 20.02.2007. RU 2581680 C1, 20.04.2016. AU 509774 B2, 22.05.1980. US 126655 A, 14.05.1872. US 7631702 B2, 15.12.2009. R U Стр.: 1 U 1 (54) ДИСК СФЕРИЧЕСКИЙ СО СПЛОШНОЙ РЕЖУЩЕЙ КРОМКОЙ ДЛЯ ПОЧВООБРАБАТЫВАЮЩИХ ОРУДИЙ (57) Реферат: Полезная модель относится к области режущей части сферического диска со сплошной почвообрабатывающих орудий, в частности к режущей кромкой наносится гальваническое сферическим дискам со сплошной режущей алмазно-никелевое покрытие. Конструкция кромкой, которые используются в сеялках, сферического диска со сплошной режущей плугах, лущильниках и боронах. Техническим кромкой (Фиг. 1) состоит из ...

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Номер записи: 3
29-05-2018 дата публикации

ДИСК ВЫРЕЗНОЙ С ПРЕРЫВИСТОЙ РЕЖУЩЕЙ КРОМКОЙ ДЛЯ ПОЧВООБРАБАТЫВАЮЩИХ ОРУДИЙ

Номер: RU0000179939U1
Автор: Коршунов Владимир Яковлевич, Коршунова Галина Николаевна, Шмидов Денис Васильевич
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования "Брянский государственный аграрный университет"

Полезная модель относится к области почвообрабатывающих орудий, в частности к вырезным дискам с прерывистой режущей кромкой, которые используются в сеялках, плугах, лущильниках и боронах. Техническим результатом является увеличение времени работы вырезных дисков и значительное сокращение их расхода при обработке почвы. Технический результат достигается тем, что на предварительно обработанную точением прерывистую рабочую поверхность режущей части вырезного диска наносится гальваническое алмазно-никелевое покрытие. Конструкция вырезного диска с прерывистой режущей кромкой (Фиг. 1) состоит из корпуса 1 и гальванического алмазно-никелевого покрытия 2, которое наносится на предварительно обработанную точением прерывистую рабочую поверхность режущей части вырезного диска. И 1 179939 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ 7 ВУ‘’’ 179 939° Ц1 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 11.10.2018 Дата внесения записи в Государственный реестр: 10.07.2019 Дата публикации и номер бюллетеня: 10.07.2019 Бюл. №19 Стр.: 1 па 6661 | ЕП

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Номер записи: 4
19-01-2012 дата публикации

Polycrystalline diamond compact including a substrate having a raised interfacial surface bonded to a polycrystalline diamond table, and applications therefor

Номер: US20120012401A1
Автор: Jair J. Gonzalez, Neil D. Haddock
Принадлежит: US Synthetic Corp

In various embodiments, a polycrystalline diamond compact (“PDC”) comprises a substrate including an interfacial surface having a raised region. In an embodiment, a PDC comprises a substrate including an interfacial surface having a generally cylindrical raised region and a peripheral region extending about the generally cylindrical raised region. The generally cylindrical raised region extends to a height above the peripheral region of about 450 μm or less. The PDC includes a PCD table bonded to the interfacial surface of the substrate. The PCD table includes an upper surface and at least one peripheral surface, and includes a plurality of bonded diamond grains defining interstitial regions. At least a portion of the interstitial regions includes a metallic constituent therein. In another embodiment, instead of employing a generally cylindrical raised region, the interfacial surface may include a plurality of raised arms extending above the face. Each raised arm extends radially and circumferentially.

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Номер записи: 5
23-02-2012 дата публикации

Cubic boron nitride compact

Номер: US20120042576A1
Автор: Nedret Can, Stig Ake Andersin
Принадлежит: Individual

A CBN compact which contains CBN and a matrix phase, wherein the CBN grain size volume frequency distribution has a distribution spread expressed as d90-d10 of 1 micron or greater, and the d90 maximum value is 5 micron or less.

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Номер записи: 6
08-03-2012 дата публикации

Polycrystalline diamond element

Номер: US20120055717A1
Автор: Bronwyn Annette Kaiser, Danny Eugene Scott, Humphrey Samkelo Lungisani Sithebe, John Hewitt Liversage, Kaveshini Naidoo, Michael Lester Fish
Принадлежит: Individual

An embodiment of a PCD insert comprises an embodiment of a PCD element joined to a cemented carbide substrate at an interface. The PCD element has internal diamond surfaces defining interstices between them. The PCD element comprises a masked or passivated region and an unmasked or unpassivated region, the unmasked or unpassivated region defining a boundary with the substrate, the boundary being the interface. At least some of the internal diamond surfaces of the masked or passivated region contact a mask or passivation medium, and some or ail of the interstices of the masked or passivated region and of the unmasked or unpassivated region are at least partially filled with an infiltrant material.

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Номер записи: 7
26-04-2012 дата публикации

Diamond bonded construction with thermally stable region

Номер: US20120097458A1
Автор: Benjamin Randall, Feng Yu, Georgiy Voronin, J. Daniel Belnap
Принадлежит: Smith International Inc

Diamond bonded constructions comprise a polycrystalline diamond body having a matrix phase of bonded-together diamond grains and a plurality of interstitial regions between the diamond grains including a catalyst material used to form the diamond body disposed within the interstitial regions. A sintered thermally stable diamond element is disposed within and bonded to the diamond body, and is configured and positioned to form part of a working surface. The thermally stable diamond element is bonded to the polycrystalline diamond body, and a substrate is bonded to the polycrystalline diamond body. The thermally stable diamond element comprises a plurality of bonded-together diamond grains and interstitial regions, wherein the interstitial regions are substantially free of a catalyst material used to make or sinter the thermally stable diamond element. A barrier material may be disposed over or infiltrated into one or more surfaces of the thermally stable diamond element.

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Номер записи: 8
19-07-2012 дата публикации

Superhard cutter element

Номер: US20120183364A1
Автор: Anthony Joseph Cooper, Peter Michael Harden
Принадлежит: Individual

A superhard cutter element for machining a workpiece comprising wood, metal, ceramic material or composite material, the superhard cutter comprising a superhard structure ( 140 ) having a rake side ( 110 ) and a flank side ( 120 ), the rake side ( 110 ) and the flank side ( 120 ) enclosing a wedge angle ω; and a protective layer ( 170 ) bonded to the superhard structure ( 140 ) at a rake interface ( 180 ) on the rake side ( 110 ), the protective layer ( 170 ) being softer than the material of the superhard structure ( 140 ).

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Номер записи: 9
26-07-2012 дата публикации

Method of manufacturing metal composite material, metal composite material, method of manufacturing heat dissipating component, and heat dissipating component

Номер: US20120189839A1
Автор: Hidekazu Takizawa, Shinichi Anzawa, Shoji Koizumi, Syuzo Aoki, Takuya Kurosawa, Takuya Oda, Yutaka Komatsu
Принадлежит: Nagano Prefecture, Shinko Electric Industries Co Ltd

A method of manufacturing a metal composite material includes applying a mechanical impact force to a carbon material and a metal powder at such an intensity as capable of pulverizing the carbon material, thereby adhering the carbon material to a surface of the metal powder.

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Номер записи: 10
23-08-2012 дата публикации

Cutting tool

Номер: US20120213601A1
Автор: Makoto Setoyama, Satoru Kukino
Принадлежит: SUMITOMO ELECTRIC HARDMETAL CORP

A cutting tool having excellent chip treatability and adhesion resistance is provided. The cutting tool includes a hard sintered body in at least a cutting edge and has a rake face and a flank face. The rake face has a chip breaker in a protruded or uneven shape. The hard sintered body contains at least 20% by volume of cubic boron nitride. A region of not more than 20 μm from a surface of the hard sintered body on the rake face side includes A-structures made of cubic boron nitride and B-structures made of at least one selected from the group consisting of hexagonal boron nitride, amorphous boron nitride, and boron oxide. The volume ratio of the B-structures to the sum of the A-structures and B-structures, B/(A+B), is not less than 5% by volume and not more than 90% by volume.

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Номер записи: 11
27-09-2012 дата публикации

Composite polycrystalline diamond body

Номер: US20120241225A1
Автор: David Briggs, Jiang Xiaole, Samer Alkhalaileh, Zhao Yunliang
Принадлежит: International Diamond Services Inc

In this novel PDC cutter, diamond powders of different composition and/or different grain size, are distributed, shaped, and compacted with a novel pressing tool, in multiple stages, spatially arranged into different regions of the PDC diamond body, then HPHT sintered to form one PDC body with spatially varying hardness, toughness and thermal resistance more optimal for machining, drilling and/or cutting of hard rock and stone.

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Номер записи: 12
27-09-2012 дата публикации

Polycrystalline diamond, polycrystalline diamond compacts, methods of making same, and applications

Номер: US20120241226A1
Автор: Brandon P. LINFORD, Debkumar MUKHOPADHYAY, Jason K. Wiggins, JIANG Qian, Kenneth E. Bertagnolli, Michael A. Vail
Принадлежит: US Synthetic Corp

Embodiments of the invention relate to polycrystalline diamond compacts (“PDC”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, a PDC includes a polycrystalline diamond (“PCD”) table bonded to a substrate. At least a portion of the PCD table includes a plurality of diamond grains defining a plurality of interstitial regions. The plurality of interstitial regions includes a metal-solvent catalyst. The plurality of diamond grains exhibit an average grain size of about 30 μm or less. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit an average electrical conductivity of less than about 1200 S/m. Other embodiments are directed to PCD, employing such PCD, methods of forming PCD and PDCs, and various applications for such PCD and PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.

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Номер записи: 13
18-10-2012 дата публикации

Polycrystalline diamond compacts including at least one transition layer and methods for stress management in polycrsystalline diamond compacts

Номер: US20120261197A1
Автор: Arnold D. Cooper, Damon B. Crockett, David P. Miess, Kenneth E. Bertagnolli
Принадлежит: US Synthetic Corp

Embodiments relate to polycrystalline diamond compacts (“PDCs”) that are less susceptible to liquid metal embrittlement damage due to the use of at least one transition layer between a polycrystalline diamond (“PCD”) layer and a substrate. In an embodiment, a PDC includes a PCD layer, a cemented carbide substrate, and at least one transition layer bonded to the substrate and the PCD layer. The at least one transition layer is formulated with a coefficient of thermal expansion (“CTE”) that is less than a CTE of the substrate and greater than a CTE of the PCD layer. At least a portion of the PCD layer includes diamond grains defining interstitial regions and a metal-solvent catalyst occupying at least a portion of the interstitial regions. The diamond grains and the catalyst collectively exhibit a coercivity of about 115 Oersteds or more and a specific magnetic saturation of about 15 Gauss·cm 3 /grams or less.

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Номер записи: 14
21-02-2013 дата публикации

Polycrystalline diamond compact including a carbonate-catalyzed polycrystalline diamond table and applications therefor

Номер: US20130043078A1
Автор: C. Eugene McMurray, Debkumar MUKHOPADHYAY, Jason K. Wiggins, JIANG Qian, Kenneth E. Bertagnolli, Michael A. Vail
Принадлежит: US Synthetic Corp

In an embodiment, a polycrystalline diamond compact includes a substrate and a preformed polycrystalline diamond table bonded to the substrate. The table includes bonded diamond grains defining interstitial regions. The table includes an upper surface, a back surface bonded to the substrate, and at least one lateral surface extending therebetween. The table includes a first region extending inwardly from the upper surface and the lateral surface. The first region exhibits a first interstitial region concentration and includes at least one interstitial constituent disposed therein, which may be present in at least a residual amount and includes at least one metal carbonate and/or at least one metal oxide. The table includes a second bonding region adjacent to the substrate that extends inwardly from the back surface. The second bonding region exhibits a second interstitial region concentration that is greater than the first interstitial region concentration and includes a metallic infiltrant therein.

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Номер записи: 15
18-04-2013 дата публикации

Polycrystalline compacts including grains of hard material, earth-boring tools including such compacts, and methods of forming such compacts and tools

Номер: US20130092454A1
Автор: Anthony A. DiGiovanni, Danny E. Scott, Gaurav Agrawal, Soma Chakraborty
Принадлежит: Baker Hughes Inc

Polycrystalline compacts include a polycrystalline superabrasive material comprising a first plurality of grains of superabrasive material having a first average grain size and a second plurality of grains of superabrasive material having a second average grain size smaller than the first average grain size. The first plurality of grains is dispersed within a substantially continuous matrix of the second plurality of grains. Earth-boring tools may include a body and at least one polycrystalline compact attached thereto. Methods of forming polycrystalline compacts may include coating relatively larger grains of superabrasive material with relatively smaller grains of superabrasive material, forming a green structure comprising the coated grains, and sintering the green structure. Other methods include mixing diamond grains with a catalyst and subjecting the mixture to a pressure greater than about five gigapascals (5.0 GPa) and a temperature greater than about 1,300° C. to form a polycrystalline diamond compact.

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Номер записи: 16
23-05-2013 дата публикации

Tungsten rhenium compounds and composites and methods for forming the same

Номер: US20130125475A1
Автор: Qingyuan Liu, Russell Steel, Scott Horman, Scott Packer
Принадлежит: Smith International Inc

The present invention relates to tungsten rhenium compounds and composites and to methods of forming the same. Tungsten and rhenium powders are mixed together and sintered at high temperature and high pressure to form a unique compound. An ultra hard material may also be added. The tungsten, rhenium, and ultra hard material are mixed together and then sintered at high temperature and high pressure.

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Номер записи: 17
20-06-2013 дата публикации

Welding rods including pcd particles and methods of forming such welding rods

Номер: US20130152736A1
Автор: Danny E. Scott, Nicholas J. Lyons
Принадлежит: Baker Hughes Inc

A welding rod for use in applying hardfacing to a surface of a tool includes an elongated, generally cylindrical body including a metal matrix material. The welding rod also includes particles of polycrystalline diamond material carried by the elongated, generally cylindrical body. The particles of polycrystalline diamond material include a plurality of inter-bonded diamond grains.

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Номер записи: 18
25-07-2013 дата публикации

Methods of characterizing a component of a polycrystalline diamond compact by at least one magnetic measurement

Номер: US20130187642A1
Автор: Debkumar MUKHOPADHYAY, Kenneth E. Bertagnolli
Принадлежит: US Synthetic Corp

In an embodiment, a method of characterizing a polycrystalline diamond compact is disclosed. The method includes providing the polycrystalline diamond compact, and measuring at least one magnetic characteristic of a component of the polycrystalline diamond compact.

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Номер записи: 19
15-08-2013 дата публикации

Low heat capacity composite for thermal cycler

Номер: US20130210133A1
Автор: Han Oh Park, Jae Ha Kim
Принадлежит: Bioneer Corp

Provided is a low heat capacity composite for a thermal cycler . The low heat capacity composite of the present invention is a low heat capacity composite for a thermal cycler capable of overcoming difficulty in manufacture and reproducibility due to uniqueness of the existing PCR thermal cycler only. The low heat capacity composite of the present invention can reduce the cost of raw material and retain excellent heat property due to the improvement in low heat capacity and physical and mechanical properties, thereby remarkably shortening PCR reaction time and saving energy when used as a thermal block for a thermal cycler.

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Номер записи: 20
22-08-2013 дата публикации

Aluminum alloy material and method of manufacturing aluminum alloy backboard

Номер: US20130216425A1
Автор: Deyuan Xiao, Mengjan Cherng, Qing Rao, Richard Rugin Chang
Принадлежит: Enraytek Optoelectronics Co Ltd

The present invention discloses an aluminum alloy material, which is made of raw material of aluminum alloy. The raw material of aluminum alloy consists of the following constituents by percentage of weight: graphene: 0.1%˜1%, carbon nano tube: 1%˜5%, the rest being Al. The aluminum alloy material of the present invention has a good performance of heat dissipation, the thermal conductivity is higher than 200 W/m. Meanwhile, the present invention further provides a method of manufacturing aluminum alloy backboard, in which method, the raw material of aluminum alloy is heated and melted in a heating furnace, afterwards, the raw material of aluminum alloy after melting is formed into an aluminum alloy backboard by die-casting, in this way, the utilization rate of material is increased and the manufacturing cost of the backboard is reduced.

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Номер записи: 21
26-09-2013 дата публикации

Method to Improve the Leaching Process

Номер: US20130247478A1
Автор: Federico Bellin, Vamsee Chintamaneni
Принадлежит: Varel International Industries LP

A method to leach a component that includes a polycrystalline structure. The method includes obtaining the component having the polycrystalline structure. The polycrystalline structure includes catalyst material deposited therein. The method also includes performing a leaching process on the polycrystalline structure to an intermediate leaching depth. The leaching process removes at least a portion of the catalyst material from the polycrystalline structure and forms one or more by-product materials deposited therein. The method also includes performing a cleaning process on the polycrystalline structure, which removes at least a portion of the by-product materials. The leaching process and the cleaning process are iteratively continued until the intermediate leaching depth reaches a desired leaching depth, both of which are measured from one end of the polycrystalline structure. The desired leaching depth is greater than at least one intermediate leaching depth.

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Номер записи: 22
19-12-2013 дата публикации

High toughness thermally stable polycrystalline diamond

Номер: US20130333297A1
Автор: Federico Bellin
Принадлежит: Varel Europe SA

A mixture for fabricating a cutting table, the cutting table, and a method of fabricating the cutting table. The mixture includes a cutting table powder and a binder. The binder includes at least one carbide formed from an element selected from at least one of Groups IV, V, and VI of the Periodic Table. The carbide is in its non-stoichiometric and/or stoichiometric form. The binder can include the element. In certain embodiments, the binder includes one or more of the cutting table powder and a catalyst. The cutting table is formed by sintering the mixture using a solid phase sintering process or a near solid phase sintering process. When forming or coupling the cutting table to a substrate, a divider is positioned and coupled therebetween to ensure that the sintering process that forms the cutting table occurs using the solid phase sintering process or the near solid phase sintering process.

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Номер записи: 23
19-12-2013 дата публикации

High density polycrystalline superhard material

Номер: US20130337248A1
Автор: Mehmet Serdar Ozbayraktar
Принадлежит: Element Six Abrasives SA

A polycrystalline superhard material comprises a mass of diamond, graphite or cubic boron nitride particles or grains bonded together by ultrathin inter-granular bonding layers, the inter-granular bonding layers having an average thickness of greater than about 0.3 nm and less than about 100 nm. There is also disclosed a method for making such a polycrystalline superhard material.

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Номер записи: 24
26-12-2013 дата публикации

SUPERHARD STRUCTURE AND METHOD OF MAKING SAME

Номер: US20130344309A1
Автор: Adia Moosa Mahomed, Bowes David Christian, Davies Geoffrey John
Принадлежит: ELEMENT SIX ABRASIVES S.A.

A superhard structure comprises a body of polycrystalline superhard material comprising a first region and a second region, the second region being adjacent an exposed surface of the superhard structure, the second region comprising a diamond material or cubic boron nitride, the density of the second region being greater than 3.4×103 kilograms per cubic metre when the second region comprises diamond material. The material(s) forming the first and second regions have a difference in coefficient of thermal expansion, the first and second regions being arranged such that this difference induces compression in the second region adjacent the exposed surface. The fir further region has the highest coefficient of thermal expansion of the polycrystalline body and is separated from a peripheral free surface of the body of polycrystalline superhard material by the second region or one or more further regions formed of a material or materials of a lower coefficient of thermal expansion. The regions comprise a plurality of grains of polycrystalline superhard material. There is also disclosed a method of making such a material. 1. A superhard structure comprising:a body of polycrystalline superhard material comprising:a first region; and{'sup': '3', 'a second region, the second region being adjacent an exposed surface of the superhard structure, the second region comprising a diamond material or cubic boron nitride, the density of the second region being greater than 3.4×10kilograms per cubic metre when the second region comprises diamond material; and'}wherein the material or materials forming the first and second regions have a difference in coefficient of thermal expansion, the first and second regions being arranged such that the difference between the coefficients of thermal expansion induces compression in the second region adjacent the exposed surface; and wherein the first region or a further region has the highest coefficient of thermal expansion of the polycrystalline ...

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Номер записи: 25
09-01-2014 дата публикации

Cubic boron nitride crystal, bodies comprising same and tools comprising same

Номер: US20140007520A1
Автор: Karolina HANNERSJÖ
Принадлежит: Element Six Ltd

A cubic boron nitride (cBN) crystal or plurality of crystals containing a chloride salt compound including an alkali metal or an alkali earth metal. For example, the chloride salt compound may be selected from potassium chloride, magnesium chloride, lithium chloride, calcium chloride or sodium chloride. The crystal or crystals may have a relatively rough surface texture.

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Номер записи: 26
07-01-2016 дата публикации

A cutter element for rock removal applications

Номер: US20160002981A1
Автор: Geoffrey John Davies, Moosa Mahomed Adia
Принадлежит: ELEMENT SIX ABRASIVES S.A.

A cutter element for rock removal comprises a free standing PCD body ( 801, 1801 ) comprising two or more physical volumes ( 1702, 1703 ) within the boundary of the PCD body, wherein adjacent physical volumes differ in one or more of diamond and metal network compositional ratio, metal elemental composition and diamond grain size distribution, a functional working volume ( 803 ) distal to the PCD body, the functional working volume forming in use a region which comes into contact with the rock. A functional support volume ( 804 ) extant in use and having a proximal free surface extends from the functional working volume. The PCD body has a shape having an aspect ratio such that the ratio of the length (ae) of the longest edge of the circumscribing rectangular parallelepiped of the overall PCD body to the largest width (ad) of the smallest rectangular face from which the functional working volume extends of the circumscribing rectangular parallelepiped, is greater than or equal to 1.0, and one or more of the physical volumes forms at least part of one or other or both of the functional working volume and the functional support volume.

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Номер записи: 27
07-01-2021 дата публикации

COMPOSITE MEMBER AND METHOD OF MANUFACTURING COMPOSITE MEMBER

Номер: US20210002769A1
Автор: Goto Kengo, HOSOE Akihisa, IKEDA Tomoaki, ISHIKAWA Fukuto, MORIGAMI Hideaki, SUGISAWA Masanori
Принадлежит:

A composite member includes: a substrate formed of a composite material containing a plurality of diamond grains and a metal phase; and a coating layer made of metal. The surface of the substrate includes a surface of the metal phase, and a protrusion formed of a part of at least one diamond grain of the diamond grains and protruding from the surface of the metal phase. In a plan view, the coating layer includes a metal coating portion, and a grain coating portion. A ratio of a thickness of the grain coating portion to a thickness of the metal coating portion is equal to or less than 0.80. The coating layer has a surface roughness as an arithmetic mean roughness Ra of less than 2.0 μm. 1. A composite member comprising: a plurality of diamond grains, and', 'a metal phase that bonds the diamond grains; and, 'a substrate formed of a composite material containing'}a coating layer made of metal and coating at least a part of a surface of the substrate, wherein a surface of the metal phase, and', 'a protrusion formed of a part of at least one diamond grain of the diamond grains and protruding from the surface of the metal phase,, 'the surface of the substrate includes'} a metal coating portion coating the surface of the metal phase, and', 'a grain coating portion coating the protrusion and not coating the surface of the metal phase,, 'in a plan view, the coating layer includes'}a ratio of a thickness of the grain coating portion to a thickness of the metal coating portion is equal to or less than 0.80, andthe coating layer has a surface roughness as an arithmetic mean roughness Ra of less than 2.0 μm.2. The composite member according to claim 1 , whereinmetal that forms the metal phase is silver or a silver alloy.3. The composite member according to claim 1 , whereinthe metal that forms the coating layer is a nickel alloy containing phosphorus.4. A method of manufacturing a composite member claim 1 , the method comprising:etching a surface of a material plate formed of a ...

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Номер записи: 28
10-01-2019 дата публикации

SUPER HARD CONSTRUCTIONS & METHODS OF MAKING SAME

Номер: US20190009339A1
Автор: KANYANTA VALENTINE, MIRANDA-FERNANDEZ MIRIAM, OZBAYRAKTAR MEHMET SERDAR, ZHANG XIAOXUE, ZUNEGA JONEE CHRISTINE PAREDES
Принадлежит: ELEMENT SIX (UK) LIMITED

A superhard polycrystalline construction comprises a body of polycrystalline superhard material comprising a structure comprising superhard material, the structure having porosity greater than 20% by volume and up to around 80% by volume. A method of forming such a superhard polycrystalline construction comprises forming a skeleton structure of a first material having a plurality of voids, at least partially filling some or all of the voids with a second material to form a pre-sinter assembly, and treating the pre-sinter assembly to sinter together grains of superhard material to form a body of polycrystalline superhard material comprising a first region of superhard grains, and an interpenetrating second region; the second region being formed of the other of the first or second material that does not comprise the superhard grains; the superhard grains forming a sintered structure having a porosity greater than 20% by volume and up to around 80% by volume. 1. A super hard polycrystalline construction comprising a body of polycrystalline super hard material , the body of polycrystalline super hard material comprising a structure comprising super hard material , the structure having porosity greater than 20% by volume and up to around 80% by volume.2. The construction of claim 1 , further comprising one or more secondary phases located in one or more pores in the structure.3. The construction of wherein the one or more secondary phases comprise any one or more of a ceramic claim 2 , a metal alloy claim 2 , a hardmetal claim 2 , or a polymer.4. The construction of wherein the one or more secondary phases comprise any one or more of titanium claim 2 , alumina claim 2 , TiAlV claim 2 , or an alloy of cobalt and chrome.5. The construction of wherein the one or more secondary phases comprise an interpenetrating network through the super hard material.6. The construction of claim 5 , wherein the interpenetrating network is substantially continuous through the structure.7. ...

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Номер записи: 29
14-01-2016 дата публикации

Cutting elements comprising partially leached polycrystalline material, tools comprising such cutting elements, and methods of forming wellbores using such cutting elements

Номер: US20160010397A1
Автор: Alejandro Flores, Anthony A. DiGiovanni, David A. Stockey
Принадлежит: Baker Hughes Inc

An earth-boring tool includes a cutting element having a first volume of polycrystalline material including catalyst material and a second volume free of catalyst material. A boundary between the first volume and the second volume is nonlinear in a cross-sectional plane that includes a centerline of the cutting element and an anticipated point of contact of the cutting element with the surface of the formation to be cut. Each line tangent the boundary in the cross-sectional plane forms an angle with the centerline of the cutting element greater than the contact back rake angle of the cutting element. In some cutting elements, some portions of the boundary may have another selected shape. Some cutting elements have a boundary wherein tangent lines form angles of greater than 20° with the centerline of the cutting element. Methods of forming wellbores are also disclosed.

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Номер записи: 30
09-01-2020 дата публикации

METHOD OF MAKING A THERMALLY STABLE POLYCRYSTALLINE SUPER HARD CONSTRUCTION

Номер: US20200010371A1
Автор: JI Changzheng, Palmer Nicola Louise, Perkins Neil
Принадлежит:

A method of making a thermally stable polycrystalline super hard construction having a plurality of interbonded super hard grains and interstitial regions disposed therebetween to form a polycrystalline super hard construction having a first thermally stable region and a second region, the first thermally stable region forming at least part of a working surface of the construction, comprises treating the polycrystalline super hard material with a leaching mixture to remove non-super hard phase material from a number of interstitial regions in the first region. The step of treating comprises masking the polycrystalline super hard construction along at least a portion of the peripheral side surface up to and/or at the working surface to inhibit penetration of the leaching mixture into the super hard construction through a peripheral side surface of the super hard construction. 1. A method of making a thermally stable polycrystalline super hard construction comprising a plurality of interbonded super hard grains and interstitial regions disposed therebetween to form a polycrystalline super hard construction having a first thermally stable region and a second region , the first thermally stable region forming at least part of a working surface of the construction , the method comprising:treating the polycrystalline super hard material with a leaching mixture to remove non-super hard phase material from a number of interstitial regions in the first region;the step of treating comprising masking the polycrystalline super hard construction along at least a portion of the peripheral side surface up to and/or at the working surface to inhibit penetration of the leaching mixture into the super hard construction through a peripheral side surface of the super hard construction, the chamfer spacing the working surface from the peripheral side surface.2. The method of claim 1 , wherein the step of removing non-super hard phase material from the interstitial regions in the first ...

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Номер записи: 31
09-01-2020 дата публикации

SUPERHARD CONSTRUCTIONS AND METHODS OF MAKING SAME

Номер: US20200010936A1
Автор: KANYANTA VALENTINE, Kasonde Maweja, NKADIMENG Machele Elizabeth
Принадлежит:

A superhard polycrystalline construction comprises a body of polycrystalline superhard material comprising a superhard phase, and a second phase dispersed in the superhard phase, the superhard phase comprising a plurality of inter-bonded superhard grains. The second phase comprises particles or grains that do not chemically react with the superhard grains, and/or do not inter-grow, and form between around 1 to 30 volume % or wt % of the body of polycrystalline superhard material. 1. A superhard polycrystalline construction comprising:a body of polycrystalline superhard material, the body of polycrystalline superhard material comprising:a superhard phase, and a second phase dispersed in the superhard phase, the superhard phase comprising a plurality of inter-bonded superhard grains;wherein the second phase comprises particles or grains that do not chemically react with the superhard grains, and/or do not inter-grow, and form between around 1 to 30 volume % or around 1 to around 30 wt % of the body of polycrystalline superhard material.2. A superhard polycrystalline construction according to claim 1 , wherein the superhard grains comprise natural and/or synthetic diamond grains claim 1 , the superhard polycrystalline construction forming a polycrystalline diamond construction.3. A superhard polycrystalline construction according to claim 1 , further comprising a non-superhard phase comprising a binder phase.4. A superhard polycrystalline construction according to claim 3 , wherein the binder phase comprises cobalt claim 3 , and/or one or more other iron group elements claim 3 , such as iron or nickel claim 3 , or an alloy thereof claim 3 , and/or one or more carbides claim 3 , nitrides claim 3 , borides claim 3 , and oxides of the metals of Groups IV-VI in the periodic table.5. A superhard polycrystalline construction according to claim 3 , wherein the particles or grains of the second phase are such that they do not dissolve in the binder phase material and thereby ...

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Номер записи: 32
09-01-2020 дата публикации

DIAMOND DRILL BIT AND METHOD OF PRODUCING A DIAMOND DRILL BIT

Номер: US20200011139A1
Автор: Auger Pierre, Laplante Philippe, Loembe Louis-Marie, Tougas Bernard
Принадлежит:

The diamond drill bit comprises a steel powder comprising iron in a non-zero proportion of up to 99.6% iron and carbon in a proportion between 0.03% and 2.14%, coated diamonds impregnated in the steel powder, and a metallic infiltrant alloy comprising copper and one of tin, silver and both tin and silver; wherein the diamond drill bit is produced by an infiltration process that comprises providing the steel powder to form the matrix; dispersing coated diamonds in the steel powder; compressing the matrix comprising the steel powder and the coated diamond at a cold-compression temperature; after the compressing, adding to the matrix an infiltrant alloy comprising copper and one of tin and silver; and heating the mixture of steel powder, coated diamonds and infiltrant alloy at a fusion temperature allowing the infiltrant alloy to melt, wherein the infiltrant alloy infiltrates the matrix and binds it. 1. A diamond drill bit comprising a steel powder comprising iron in a non-zero proportion of up to 99.6% and carbon in a proportion between 0.03% and 2.14% , coated diamonds impregnated in said steel powder , and a metallic infiltrant alloy comprising copper and one of tin , silver and both tin and silver; wherein said diamond drill bit is produced by an infiltration process.2. A diamond drill bit as defined in claim 1 , wherein said steel powder further comprises one or more of the following metals: manganese claim 1 , silicon claim 1 , phosphorus claim 1 , sulfur claim 1 , copper claim 1 , nickel claim 1 , chromium claim 1 , aluminium claim 1 , titanium claim 1 , boron claim 1 , molybdenum and vanadium.3. A diamond Drill bit as defined in claim 1 , wherein said steel powder further comprises tungsten.4. A diamond drill bit as defined in claim 1 , wherein said infiltrant alloy comprises 50-92% copper and 2-50% silver.5. A diamond drill bit as defined in claim 1 , wherein said infiltrant alloy comprises between 75-95% copper and 5-25% tin.6. A diamond drill bit as defined ...

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Номер записи: 33
18-01-2018 дата публикации

POLYCRYSTALLINE DIAMOND CONSTRUCTION AND METHOD FOR MAKING SAME

Номер: US20180015592A1
Автор: Can Nedret
Принадлежит:

A polycrystalline diamond construction comprising a body of polycrystalline diamond material is formed of a mass of diamond grains exhibiting inter-granular bonding and defining a plurality of interstitial regions therebetween, and a non-diamond phase at least partially filling a plurality of the interstitial regions to form non-diamond phase pools, the non-diamond phase pools each having an individual cross-sectional area. The percentage of non-diamond phase in the total area of a cross-section of the body of polycrystalline diamond material and the mean of the individual cross-sectional areas of the non-diamond phase pools in the image analysed using an image analysis technique at a selected magnification is less than 0.7, or less than 0.340 microns squared, or between around 0.005 to 0.340 microns squared depending on the percentage of non-diamond phase in the total area of the cross-section of the polycrystalline diamond construction. The body of polycrystalline material in the construction has a cutting surface having a surface topology comprising one or more indentations therein and/or projections therefrom. There is also disclosed a method of making such a construction. 1. A polycrystalline diamond construction comprising a body of polycrystalline diamond material formed of:a mass of diamond grains exhibiting inter-granular bonding and defining a plurality of interstitial regions therebetween, anda non-diamond phase at least partially filling a plurality of the interstitial regions to form non-diamond phase pools, the non-diamond phase pools each having an individual cross-sectional area,wherein the percentage of non-diamond phase in the total area of a cross-section of the body of polycrystalline diamond material is between around 0 to 5%, and the mean of the individual cross-sectional areas of the non-diamond phase pools in an analysed image of a cross-section through the body of polycrystalline material is less than around 0.7 microns squared when analysed ...

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Номер записи: 34
14-01-2021 дата публикации

HERMETICALLY SEALED ELECTRONIC PACKAGES WITH ELECTRICALLY POWERED MULTI-PIN ELECTRICAL FEEDTHROUGHS

Номер: US20210014986A1
Автор: DeWire David, Foster Nathan, Hall Steve, Settles Nelson, Xia Hua
Принадлежит: PA&E, Hermetic Solutions Group, LLC

A hermetically sealed electronic package may include a thermal panel having a panel interior surface and a panel exterior surface with electronic device(s) in thermal communication with the panel interior surface. An enclosure, isolating environmental communication from internal electronic devices and modules, may be coupled to the thermal panel, and the enclosure may have an enclosure interior surface and an enclosure exterior surface. A plurality of electrical feedthroughs may be coupled to the package enclosure for signal and data transmission, and the conducting pin(s) in every electrical feedthrough may be bonded by a hydrophobic sealing material for harsh environmental electrical signal, data and power transmission. The ratio of sealing length over sealing bead diameter in the electrical feedthrough subassembly may have a preferred value from 2 to 3; and the ratio of the sealing bead diameter over pin diameter in the electrical feedthrough subassembly may have a preferred value from 1.5 to 2.0, where a preferred thermal stress resistance could be designed for making highly hermetic sealed electronic package. 1. A hermetically sealed electronic package for electronic devices , the package comprising:a thermal panel having a panel interior surface and a panel exterior surface, the electronic devices in thermal communication with the panel interior surface;an enclosure coupled to the thermal panel, isolating environmental communication from internal electronic devices and modules; the enclosure having an enclosure interior surface and an enclosure exterior surface,a cavity formed by the enclosure interior surface, wherein the panel exterior surface is coupled to the enclosure interior surface;at least one electrical feedthrough coupled to the enclosure, the electrical feedthrough having at least one conducting pin penetrating from the enclosure interior surface of a header to the enclosure exterior surface, wherein each pin and header is sealed by a hydrophobic ...

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Номер записи: 35
19-01-2017 дата публикации

CUTTER ASSEMBLY WITH AT LEAST ONE ISLAND AND A METHOD OF MANUFACTURING A CUTTER ASSEMBLY

Номер: US20170016280A1
Автор: Lin Yuanbo, Lucek John W., Reierson Bruce Jake, Rhodes Joseph Michael
Принадлежит:

A cutter assembly includes a substrate and at least one island. The substrate includes a surface circumscribed by a peripheral edge, a flank surface extending from the peripheral edge, and at least one pocket with an opening on the surface and spaced apart from the peripheral edge. The at least one pocket extends from the opening towards an interior of the substrate. The at least one island is in the at least one pocket, and the at least one island includes a cutting surface that is exposed by the opening of the at least one pocket. 1. A cutter assembly , comprising:a substrate comprising at least one pocket extending from an end surface; andat least one island disposed in the at least one pocket, wherein the at least one island comprises a thermally stable diamond material that is selected from the group consisting of diamond-silicon carbide composite and a polycrystalline diamond, wherein the at least one island is directly coupled to the at least one pocket such that an end surface of the at least one island is substantially co-planar with the end surface of the substrate, and the substrate and the at least one pocket are formed before disposing the at least one island in the at least one pocket.2. A cutter assembly according to claim 1 , wherein the at least one island is coupled to the at least one pocket by press fit claim 1 , gluing claim 1 , brazing claim 1 , bonding claim 1 , clamping claim 1 , mechanical interlocking claim 1 , or welding.3. A cutter assembly according to claim 1 , wherein the substrate is made from carbide claim 1 , tungsten carbide composite claim 1 , tungsten carbide composite held up by an eta-phase claim 1 , polycrystalline cubic boron nitride claim 1 , polycrystalline diamond claim 1 , or a combination of two or more of the aforementioned.4. A cutter assembly according to claim 1 , wherein the at least one island is made from a partially leached material.5. A cutter assembly according to claim 1 , wherein the at least one island is ...

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Номер записи: 36
21-01-2016 дата публикации

Earth-boring tools, drill bits, and diamond-impregnated rotary drill bits including crushed polycrystalline diamond material

Номер: US20160017667A1
Автор: Danny E. Scott, Nicholas J. Lyons
Принадлежит: Baker Hughes Inc

A hardfacing material includes a metal matrix material and particles of crushed polycrystalline diamond material embedded within the metal matrix material. An earth-boring tool includes a body comprising particles of fragmented polycrystalline diamond material embedded within a metal matrix material. The particles of fragmented polycrystalline diamond material include a plurality of inter-bonded diamond grains. A method includes forming an earth-boring tool including a metal matrix material and particles of crushed polycrystalline diamond material.

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Номер записи: 37
17-01-2019 дата публикации

SUPERHARD CONSTRUCTIONS & METHODS OF MAKING

Номер: US20190017153A1
Автор: Baloyi Rodwell, KANYANTA VALENTINE, Kasonde Maweja
Принадлежит:

A superhard polycrystalline construction comprises a body of polycrystalline superhard material comprising a superhard phase, and a non-superhard phase dispersed in the superhard phase, the superhard phase comprising a plurality of inter-bonded superhard grains. The non-superhard phase comprises particles or grains that do not chemically react with the superhard grains and form less than around 10 volume % of the body of polycrystalline superhard material. There is also disclosed a method of forming such a superhard polycrystalline construction. 1. A superhard polycrystalline construction comprising:a body of polycrystalline superhard material, the body of polycrystalline superhard material comprising:a superhard phase, and a non-superhard phase dispersed in the superhard phase, the superhard phase comprising a plurality of inter-bonded superhard grains;wherein the non-superhard phase comprises particles or grains that do not chemically react with the superhard grains and form less than around 10 volume % of the body of polycrystalline superhard material.2. A superhard polycrystalline construction according to claim 1 , wherein the superhard grains comprise natural and/or synthetic diamond grains claim 1 , the superhard polycrystalline construction forming a polycrystalline diamond construction.3. A superhard polycrystalline construction according to claim 1 , wherein the non-superhard phase further comprises a binder phase.4. A superhard polycrystalline construction according to claim 3 , wherein the binder phase comprises cobalt claim 3 , and/or one or more other iron group elements claim 3 , such as iron or nickel claim 3 , or an alloy thereof claim 3 , and/or one or more carbides claim 3 , nitrides claim 3 , borides claim 3 , and oxides of the metals of Groups IV-VI in the periodic table.5. A superhard polycrystalline construction according to claim 3 , claim 3 , wherein the particles or grains that do not chemically react with the superhard grains are such that ...

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Номер записи: 38
17-01-2019 дата публикации

POLYCRYSTALLINE DIAMOND CONSTRUCTIONS WITH PROTECTIVE ELEMENT

Номер: US20190017331A1
Автор: Lund Jeffrey Bruce, Yu Feng
Принадлежит:

PCD constructions as disclosed comprise a ultra-hard body attached with a metallic substrate along a substrate extending between the body and the substrate. The construction includes a protective feature or element that is configured to protect a metal rich region or zone existing in the construction from unwanted effects of corrosion or erosion. The protective element extends from the body over the interface and along a portion of the substrate and may be integral with the body.

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Номер записи: 39
16-01-2020 дата публикации

POLYCRYSTALLINE DIAMOND COMPACTS HAVING INTERSTITIAL DIAMOND GRAINS AND METHODS OF MAKING THE SAME

Номер: US20200017413A1
Автор: Bird Marc, Gledhill Andrew, Scott Danny
Принадлежит:

Polycrystalline diamond compacts having interstitial diamonds and methods of forming polycrystalline diamond compact shaving interstitial diamonds with a quench cycle are described herein. In one embodiment, a polycrystalline diamond compact includes a substrate and a polycrystalline diamond body attached to the substrate. The polycrystalline diamond body includes a plurality of inter-bonded diamond grains that are attached to one another in an interconnected network of diamond grains and interstitial pockets between the inter-bonded diamond grains, and a plurality of interstitial diamond grains that are positioned in the interstitial pockets. Each of the plurality of interstitial diamond grains are attached to a single diamond grain of the interconnected network of diamond grains or other interstitial diamond grains. 1. A polycrystalline diamond compact comprising: a plurality of inter-bonded diamond grains that are attached to one another in an interconnected network of diamond grains and interstitial pockets between the inter-bonded diamond grains; and', 'a plurality of interstitial diamond grains that are positioned in the interstitial pockets, each of the plurality of interstitial diamond grains are attached to a single diamond grain of the interconnected network of diamond grains or other interstitial diamond grains., 'a polycrystalline diamond body comprising2. The polycrystalline diamond compact of claim 1 , wherein:a. least a portion of the interstitial pockets comprise a catalyst material positioned between the diamond grains; andthe plurality of interstitial diamond grains reduce an exposed surface area of the inter-bonded diamond grains to the catalyst material.3. The polycrystalline diamond compact of claim 1 , wherein:at least a portion of the interstitial pockets comprise a catalyst material positioned between the diamond grains; andthe polycrystalline diamond body further comprises an interstitial diamond grain that is positioned within the catalyst ...

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Номер записи: 40
25-01-2018 дата публикации

SUPER HARD COMPONENTS AND POWDER METALLURGY METHODS OF MAKING THE SAME

Номер: US20180021924A1
Автор: Wang Dong
Принадлежит:

A method of forming a super hard polycrystalline construction comprises forming a liquid suspension of graphene and grains of super hard material, dispersing the graphene and super hard grains in the liquid suspension to form a substantially homogeneous suspension which is dried and from which a pre-sinter assembly is formed and then treated to create a sintered body of polycrystalline super hard material comprising a first fraction of super hard grains and a second fraction of diamond grains, the graphene being at least partially converted to diamond during the sintering stage to form the second fraction. The super hard grains in the first fraction are bonded along at least a portion of the peripheral surface to at least a portion of a plurality of diamond grains in the second fraction, and have a greater average grain size than that of the grains in the second fraction which is between 60 nm to 1 micron. 1. A method of forming a super hard polycrystalline construction , comprising:forming a liquid suspension of a first mass of graphene and a mass of particles or grains of super hard material;dispersing the graphene and mass of super hard particles or grains in the liquid suspension to form a substantially homogeneous suspension;drying the suspension to form an admix of the graphene and super hard grains or particles;forming a pre-sinter assembly comprising the admix;treating the pre-sinter assembly in the presence of a catalyst/solvent material for the super hard grains at an ultra-high pressure of around 5 GPa or greater and a temperature to sinter together the grains of super hard material to form a body of polycrystalline super hard material comprising a first fraction of super hard grains and a second fraction of diamond grains, the super hard grains exhibiting inter-granular bonding and defining a plurality of interstitial regions therebetween;the graphene being at least partially converted to diamond during the sintering stage to form the second fraction; ...

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Номер записи: 41
24-01-2019 дата публикации

Systems and Methods of Fabrication and Use of Wear-Resistant Materials

Номер: US20190022759A1
Автор: Anil Kumar, Biju Pillai KUMAR, Bradley S. IVIE, Michael D. Hughes, Russell C. Gilleylen, WEI Liu
Принадлежит: National Oilwell DHT LP

Discussed herein are systems and methods of forming hardfacing coatings and films containing Q-carbon diamond particles for use in downhole drilling tooling and other tools where wear-resistant coating is desirable. The Q-carbon diamond-containing layers may be coated with matrix material and/or disposed in a matrix to form the coating, or the Q-carbon diamond layer may be formed directly from a diamond-like-carbon on a substrate.

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Номер записи: 42
23-01-2020 дата публикации

POLYCRYSTALLINE DIAMOND COMPACT, AND RELATED METHODS AND APPLICATIONS

Номер: US20200024905A1
Автор: Bertagnolli Kenneth E., Eddy Brent R., Jones Paul Douglas, Knuteson Cody William, Linford Brandon P., Mukhopadhyay Debkumar
Принадлежит:

Embodiments relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table in which a metal-solvent catalyst is alloyed with at least one alloying element to improve thermal stability of the PCD table. In an embodiment, a PDC includes a substrate and a PCD table bonded to the substrate. The PCD table includes diamond grains defining interstitial regions. The PCD table includes an alloy comprising at least one Group VIII metal and at least one metallic alloying element that lowers a temperature at which melting of the at least one Group VIII metal begins. The alloy includes one or more solid solution phases comprising the at least one Group VIII metal and the at least one metallic alloying element and one or more intermediate compounds comprising the at least one Group VIII metal and the at least one metallic alloying element. 1. (canceled)2. A method of fabricating a polycrystalline diamond compact , the method comprising: a carbide substrate having at least one group VIII metal therein;', 'an alloying material including at least one alloying element having a melting temperature greater than a melting temperature of the at least one group VIII metal;', 'a plurality of bonded diamond grains disposed between the carbide substrate and the alloying material, the plurality of bonded diamond grains defining a plurality of interstitial regions therebetween, at least some of the plurality of interstitial regions having the at least one group VIII metal therein; and, 'providing an assembly, the assembly includingheating the assembly to a temperature above the melting temperature of the at least one group VIII metal.3. The method of claim 2 , wherein the at least one alloying element includes at least one element selected from the group consisting of silver claim 2 , gold claim 2 , aluminum claim 2 , antimony claim 2 , boron claim 2 , carbon claim 2 , cerium claim 2 , chromium claim 2 , copper claim 2 , dysprosium claim 2 , erbium claim ...

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Номер записи: 43
01-02-2018 дата публикации

POLYCRYSTALLINE DIAMOND CONSTRUCTION AND METHOD FOR MAKING SAME

Номер: US20180029130A1
Автор: Can Nedret, Fish Michael Lester
Принадлежит:

A polycrystalline diamond construction comprising a body of polycrystalline diamond material is formed of a mass of diamond grains exhibiting inter-granular bonding and defining a plurality of interstitial regions therebetween, and a non-diamond phase at least partially filling a plurality of the interstitial regions to form non-diamond phase pools, the non-diamond phase pools each having an individual cross-sectional area. The percentage of non-diamond phase in the total area of a cross-section of the body of polycrystalline diamond material and the mean of the individual cross-sectional areas of the non-diamond phase pools in the image analysed using an image analysis technique at a selected magnification is less than 0.7, or less than 0.340 microns squared, or between around 0.005 to 0.340 microns squared depending on the percentage of non-diamond phase in the total area of the cross-section of the polycrystalline diamond construction. There is also disclosed a method of making such a construction. 1. A polycrystalline diamond construction comprising a body of polycrystalline diamond material formed of:a mass of diamond grains exhibiting inter-granular bonding and defining a plurality of interstitial regions therebetween, anda non-diamond phase at least partially filling a plurality of the interstitial regions to form non-diamond phase pools, the non-diamond phase pools each having an individual cross-sectional area,wherein the percentage of non-diamond phase in the total area of a cross-section of the body of polycrystalline diamond material is between around 0 to 5%, and the mean of the individual cross-sectional areas of the non-diamond phase pools in an analysed image of a cross-section through the body of polycrystalline material is less than around 0.7 microns squared when analysed using an image analysis technique at a magnification of around 1000 and an image area of 1280 by 960 pixels.2. A polycrystalline diamond construction comprising a body of ...

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Номер записи: 44
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: 45
31-01-2019 дата публикации

3D PRINTERS AND PHOTOCURABLE POLYMER AND RESIN BASED FEEDSTOCKS FOR 3D PRINTERS

Номер: US20190030792A1
Автор: GRIGORIAN Leonid
Принадлежит: Voxelum, Inc.

This disclosure relates in general to three dimensional (“3D”) printers having a configuration that prepares a three-dimensional object by using a feedstock comprising carbon containing photocurable formulations and methods for the preparation of such feedstocks. This disclosure further relates to electrically conducting 3D polymer composites prepared by using such carbon containing photocurable formulations. 1. A carbon containing photocurable formulation comprising:a carbon;a photocurable resin; anda photoinitiator;wherein the carbon containing photocurable formulation, when cured, yields a polymer composite with an electrical resistivity lower than or equivalent to 100 ohmcm.2. The carbon containing photocurable formulation of claim 1 , wherein the carbon containing photocurable formulation claim 1 , when cured claim 1 , yields a polymer composite with an electrical resistivity lower than or equivalent to 10 ohmcm.3. The carbon containing photocurable formulation of claim 1 , wherein the carbon containing photocurable formulation claim 1 , when cured claim 1 , yields a polymer composite with an electrical resistivity lower than or equivalent to 1 ohmcm.4. The carbon containing photocurable formulation of claim 1 , wherein the carbon containing photocurable formulation claim 1 , when cured claim 1 , yields a polymer composite with an electrical resistivity lower than or equivalent to 0.1 ohmcm.5. The carbon containing photocurable formulation of claim 1 , wherein the carbon containing photocurable formulation comprises a nanocarbon claim 1 , a pyrolytic carbon claim 1 , a graphite claim 1 , an activated carbon claim 1 , an amorphous carbon claim 1 , a carbon fiber claim 1 , or a combination thereof.6. The carbon containing photocurable formulation of claim 1 , wherein the carbon comprises a nanocarbon.7. The carbon containing photocurable formulation of claim 1 , wherein the carbon comprises a non-agglomerated nanocarbon.8. The carbon containing photocurable ...

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Номер записи: 46
09-02-2017 дата публикации

METHOD OF MAKING RHENIUM COATING

Номер: US20170036271A1
Автор: LIU QINGYUAN
Принадлежит:

A method of forming rhenium coated metal particles includes directly mixing ammonium perrhenate with metal particles and converting the ammonium perrhenate to a rhenium coating on the metal particles. Other methods include forming rhenium coated cubic boron nitride particles and rhenium coated diamond particles. Components of tools may be manufactured using the rhenium coated metal particles, the rhenium coated cubic boron nitride particles and/or rhenium coated diamond particles. 1. A method of manufacturing a component of a tool , the method comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'forming rhenium coated metal particles according to the method of ;'}mixing the rhenium coated metal particles with an ultra-hard material to form a powder mixture;high-pressure high-temperature sintering the powder mixture to form a blank for a component of a tool; andmachining the blank to form the component of the tool.2. A method of forming rhenium coated cubic boron nitride (cBN) particles , the method comprising:mixing ammonium perrhenate with cBN particles; andconverting the ammonium perrhenate to a rhenium coating on the cBN particles.3. The method of claim 2 , wherein the converting the ammonium perrhenate comprises reducing the ammonium perrhenate in a reducing atmosphere.4. The method of claim 3 , wherein the mixing the ammonium perrhenate with the cBN particles forms a mixture and the converting the ammonium perrhenate further comprises heating the mixture at a temperature of at least 350° C.5. The method of claim 2 , further comprising grinding the ammonium perrhenate to have a particle size in a range of about 0.5 μm to about 1000 μm before mixing the ammonium perrhenate with the cBN particles.6. A method of manufacturing a component of a tool claim 2 , the method comprising:{'claim-ref': {'@idref': 'CLM-00007', 'claim 7'}, 'forming rhenium coated cBN particles according to the method of ;'}high-pressure high-temperature sintering the cBN particles to ...

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Номер записи: 47
09-02-2017 дата публикации

HIGHLY WEAR RESISTANT DIAMOND INSERT WITH IMPROVED TRANSITION STRUCTURE

Номер: US20170037687A1
Автор: Bellin Frederico, Cariveau Peter T., Fabg Yu, Mourik Nephi M.
Принадлежит:

A cutting element includes a metallic carbide body, a first layer of polycrystalline diamond material, and at least one transition layer between the metallic carbide body and the first layer. The polycrystalline diamond material includes a plurality of interconnected diamond grains, first metal carbide particles, and a first binder material in interstitial regions between the interconnected first diamond grains, wherein the first metal carbide particles form a matrix in which the second diamond grains are dispersed and wherein the first metal carbide particles are present in the outer transition layer in an amount ranging from about 15 to 35 volume percent. The at least one transition layer includes a composite of diamond grains, second metal carbide particles, and a second binder material. 1. A cutting element comprising:a metallic carbide body;a first layer of polycrystalline diamond material, the polycrystalline diamond material comprising a plurality of interconnected diamond grains, first metal carbide particles, and a first binder material in interstitial regions between the interconnected first diamond grains, wherein the first metal carbide particles form a matrix in which the second diamond grains are dispersed and wherein the first metal carbide particles are present in the outer transition layer in an amount ranging from about 15 to 35 volume percent; andat least one transition layer between the metallic carbide body and the first layer, the at least one transition layer comprising a composite of diamond grains, second metal carbide particles, and a second binder material.2. The cutting element of claim 1 , wherein the first layer is on the outermost end of the insert.3. The cutting element of claim 1 , wherein the second binder material is present in the at least one transition layer in an amount ranging from 5 to 20 volume percent.4. The cutting element of claim 1 , wherein the at least one transition layer comprises two transition layers claim 1 , a ...

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Номер записи: 48
24-02-2022 дата публикации

POLYCRYSTALLINE MATERIAL, BODIES COMPRISING SAME, TOOLS COMPRISING SAME AND METHOD FOR MAKING SAME

Номер: US20220056617A1
Автор: KONYASHIN IGOR YURIEVICH, Lachmann Frank Friedrich, Ries Bernd Heinrich
Принадлежит: ELEMENT SIX GMBH

Polycrystalline material comprising a plurality of nano-grains of a crystalline phase of an iron group element and a plurality of crystalline grains of material including carbon (C) or nitrogen (N); each nano-grain having a mean size less than 10 nanometres. 1. A method for making polycrystalline material having a plurality of nano-grains of a crystalline phase of an iron group element and a plurality of crystalline grains of material including carbon (C) or nitrogen (N) , wherein each nano-grain has a mean size less than 10 nanometres and a density of the polycrystalline material is at least 98 percent of the maximum theoretical value , the method comprising:providing a precursor structure comprising iron (Fe) and silicon (Si), and a source of carbon (C) or nitrogen (N), in which relative quantities of the Fe, Si and C or N are selected such that the combination of the Fe, Si and C or N has a phase liquidus temperature of at most 1,280 degrees centigrade;heating the precursor structure to a temperature of at least 1,350 degrees centigrade at a mean rate of at least 100 degrees centigrade per second; andcooling the precursor structure to less than 1,000 degrees centigrade at a mean rate of at least 20 degrees per second.2. The method of claim 1 , the method further comprising:combining powder comprising the Fe and powder comprising the Si with polyvinyl compound binder material including a hydroxyl group to provide slurry; andspray drying the slurry to provide a plurality of the precursor structures in a form of granules.3. The method of claim 1 , the method further comprising:providing a plurality of precursor structures;screening the plurality of precursor structures to provide a plurality of screened precursor structures having mean diameter of at least 20 microns and at most 5,000 microns; andselecting at least one precursor structure from the plurality of screened precursor structures.4. The method of claim 1 , the method further comprising:heating the ...

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Номер записи: 49
06-02-2020 дата публикации

CUTTING TOOL WITH PCD INSERTS, SYSTEMS INCORPORATING SAME AND RELATED METHODS

Номер: US20200040434A1
Автор: Bagley Dan, Burton Regan Leland, Jensen Ken
Принадлежит:

A cutting tool which may be used in machining various material may include a body and one or more cutting elements associated therewith. In one example, the cutting element(s) may comprise a superhard table, such as a polycrystalline diamond table. In some embodiments, the polycrystalline diamond table may have a diamond density of approximately 95 percent volume or greater. In some embodiments, the thickness of the superhard table may be approximately 0.15 inch. In some embodiments, the superhard table may include a chip breaking feature or structure. Methods of shaping, finishing or otherwise machining materials are also provided, including the machining of materials comprising titanium. 1. A cutting tool comprising:a body;at least one cutting element associated with the body, the at least one cutting element comprising a superhard table exhibiting a thickness of at least approximately 0.15 inches, wherein the superhard table includes a chip breaking feature.2. The cutting tool of claim 1 , wherein the superhard table comprises polycrystalline diamond.3. The cutting tool of claim 2 , wherein the superhard table exhibits a density of at least 95 volume percent of polycrystalline diamond.4. The cutting tool of claim 2 , wherein the superhard table exhibits a density of at least 98 volume percent of polycrystalline diamond.5. The cutting tool of claim 2 , wherein the table is not bonded with a substrate.6. The cutting tool of claim 2 , wherein the polycrystalline diamond exhibits an average grain size of approximately 12 μm or less.7. The cutting tool of claim 6 , wherein a metal-solvent catalyst is present in at least some interstitial regions of the polycrystalline diamond in an amount greater than approximately 7 percent by weight.8. The cutting tool of claim 7 , wherein the metal-solvent catalyst comprises cobalt.9. The cutting tool of claim 2 , wherein the polycrystalline diamond exhibits an average grain size of approximately 20 μm or greater.10. The cutting ...

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Номер записи: 50
06-02-2020 дата публикации

POLYCRYSTALLINE DIAMOND COMPACT WITH INCREASED LEACHING SURFACE AREA AND METHOD OF LEACHING A POLYCRYSTALLINE DIAMOND COMPACT

Номер: US20200040662A1
Автор: Atkins William Brian, Cook, III Grant O., Saini Gagan
Принадлежит:

The present disclosure provides a sintering assembly and a polycrystalline diamond compact (PDC) including a acid-labile leach-enhancing material, a PDC including cavities formed by removal of an acid-labile leach-enhancing material, and a method of forming a leached PDC using an acid-labile leach-enhancing material. The present disclosure further includes drill bits using PDCs formed suing an acid-labile leach-enhancing material. 1. An unleached polycrystalline diamond compact (PDC) comprising:a substrate; andan unleached polycrystalline diamond table including an acid-labile leach-enhancing material and a sintering aid.2. The PDC of claim 1 , wherein the acid-labile leach-enhancing material is more labile in an acid than the sintering aid.3. The PDC of claim 1 , wherein the acid-labile leach-enhancing material is in the form of a microstructure.4. The PDC of claim 1 , wherein the acid-labile leach-enhancing material is in the form of a mixture of microstructures and nanostructures.5. The PDC of claim 1 , wherein the acid-labile leach-enhancing material is oriented in a pattern in the polycrystalline diamond table.6. The PDC of claim 1 , wherein the acid-labile leach-enhancing material comprises tungsten (W).7. The PDC of claim 1 , wherein the acid-labile leaching boost-material defines a plurality of cavities within the polycrystalline diamond table that increase the leaching surface area of the polycrystalline diamond table after removal of the acid-labile leach-enhancing material.8. A leached polycrystalline diamond compact (PDC) comprising:a substrate; anda leached polycrystalline diamond table including a plurality of microstructure or nanostructure cavities, or a mixture thereof.9. The PDC of claim 8 , wherein the polycrystalline diamond table includes a plurality of both microstructure and nanostructure cavities.10. The PDC of claim 8 , wherein the microstructure or nanostructure cavities claim 8 , or both claim 8 , form at least one interconnected grid of ...

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Номер записи: 51
15-02-2018 дата публикации

POLYCRYSTALLINE DIAMOND SINTERED/REBONDED ON CARBIDE SUBSTRATE CONTAINING LOW TUNGSTEN

Номер: US20180044764A1
Автор: BAO YAHUA, Belnap J. Daniel, Eyre Ronald K., Fang Yi, WANG Fulong
Принадлежит:

A method of forming a polycrystalline diamond cutting element includes assembling a diamond material, a substrate, and a source of catalyst material or infiltrant material distinct from the substrate, the source of catalyst material or infiltrant material being adjacent to the diamond material to form an assembly. The substrate includes an attachment material including a refractory metal. The assembly is subjected to a first high-pressure/high temperature condition to cause the catalyst material or infiltrant material to melt and infiltrate into the diamond material and subjected to a second high-pressure/high temperature condition to cause the attachment material to melt and infiltrate a portion of the infiltrated diamond material to bond the infiltrated diamond material to the substrate. 1. A method of forming a polycrystalline diamond cutting element , comprising:assembling a diamond material, a substrate, and a source of catalyst material or infiltrant material distinct from the substrate, the source of catalyst material or infiltrant material being adjacent to the diamond material to form an assembly, the substrate comprising an attachment material comprising a refractory metal;subjecting the assembly to a first high-pressure/high-temperature condition to cause the catalyst material or infiltrant material to melt and infiltrate into the diamond material; andsubjecting the assembly to a second high-pressure/high-temperature condition to cause the attachment material to melt and infiltrate a portion of the infiltrated diamond material to attach the infiltrated diamond material to the substrate.2. The method of claim 1 , wherein the attachment material comprises metal carbide particles and metal binder.3. The method of claim 1 , wherein the substrate comprises tungsten carbide grains bonded together by a cobalt binder.4. The method of claim 1 , wherein the catalyst material or infiltrant material infiltrates into the diamond material before the attachment material ...

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Номер записи: 52
16-02-2017 дата публикации

ALUMINUM-DIAMOND COMPOSITE, AND HEAT DISSIPATING COMPONENT USING SAME

Номер: US20170045314A1
Автор: Ishihara Yosuke, Miyakawa Takeshi, Narita Shinya, Tsukamoto Hideo
Принадлежит: Denka Company Limited

An aluminum-diamond composite that exhibits both high thermal conductivity and a coefficient of thermal expansion close to that of semiconductor devices, and that can suppress the occurrence of swelling, etc., of a surface metal layer portion even in actual use under a high load. An aluminum-diamond composite includes 65-80 vol % of a diamond powder having a roundness of at least 0.94, for which a first peak in a volumetric distribution of grain size lies at 5-25 μm, and a second peak lies at 55-195 μm, and a ratio between the area of the volumetric distribution of grain sizes of 1-35 μm and the area of the volumetric distribution of grain sizes of 45-205 μm is from 1:9 to 4:6; the balance being composed of a metal containing aluminum. 1. An aluminum-diamond composite comprising: 65-80 vol % of a diamond powder having a roundness of at least 0.94 , for which a first peak in a volumetric distribution of grain size lies at 5-25 μm , and a second peak lies at 55-195 μm , and a ratio between the area of a volumetric distribution of grain sizes of 1-35 μm and the area of a volumetric distribution of grain sizes of 45-205 μm is from 1:9 to 4:6; the balance being composed of a metal containing aluminum.2. The aluminum-diamond composite in accordance with claim 1 , wherein a diamond powder that has been heat-treated claim 1 , in an air atmosphere claim 1 , at a temperature of at least 600° C. and at most 900° C. claim 1 , for at least 30 minutes and at most 180 minutes claim 1 , is used.3. A heat-dissipating component consisting of the aluminum-diamond composite in accordance with claim 1 , formed in the shape of a flat plate claim 1 , wherein both surfaces of the aluminum-diamond composite are covered with a surface layer comprising at least 80 vol % of a metal containing aluminum and having a film thickness of 0.03-0.2 mm.4. The heat-dissipating component in accordance with claim 3 , whereinboth surfaces have, in sequence from the aluminum-diamond composite-side,an Ni ...

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Номер записи: 53
14-02-2019 дата публикации

Cubic boron nitride sintered body and cutting tool

Номер: US20190047056A1
Автор: Kouji Hirosaki
Принадлежит: Kyocera Corp

A cBN sintered body contains cBN particles whose proportion is 85-97% by volume, and a binding phase whose proportion is 3-15% by volume. The cBN sintered body contains Al whose ratio to the entirety of the cBN sintered body is 0.1-5% by mass, and Co whose mass ratio to the Al is 3 to 40, and includes Al3B6Co20.

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Номер записи: 54
25-02-2021 дата публикации

Solid-State Manufacturing System And Process Suitable For Extrusion, Additive Manufacturing, Coating, Repair, Welding, Forming And Material Fabrication

Номер: US20210053283A1
Автор: Fengchao LIU, Pingsha Dong
Принадлежит: University of Michigan

A solid-state manufacturing system having a sleeve having a hollow portion for receiving a feedstock material; a friction die rotatably coupled adjacent an end of the sleeve, the friction die and the sleeve being rotatable relative to each other along a rotation axis and configured to generate frictional heat to heat at least a portion of the feedstock material within the hollow portion of the sleeve to a malleable state; a propulsion system operably coupled to the sleeve configured to urge the feedstock material in a processing direction along the rotational axis; and an extrusion hole configured to permit the malleable feedstock material to be extruded from the extrusion hole in response to the propulsion system. A solid-state manufacturing method similarly configured is provided.

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Номер записи: 55
13-02-2020 дата публикации

SUPERHARD STRUCTURE OR BODY COMPRISING A BODY OF POLYCRYSTALLINE DIAMOND CONTAINING MATERIAL

Номер: US20200047312A1
Автор: Adia Moosa Mahomed, Davies Geoffrey John
Принадлежит:

A free standing PCD body comprises a PCD material formed of combination of intergrown diamond grains forming a diamond network and an interpenetrating metallic network, the PCD body not being attached to a second body or substrate formed of a different material. The diamond network is formed of diamond grains having a plurality of grain sizes, and comprises a grain size distribution having an average diamond grain size, wherein the largest component of the diamond grain size distribution is no greater than three times the average diamond grain size. The PCD material forming the free standing PCD body is homogeneous, such that the PCD body is spatially constant and invariant with respect to diamond network to metallic network volume ratio. The homogeneity is measured at a scale greater than ten times the average grain size and spans the dimension of the PCD body. The PCD material is also macroscopically residual stress free at said scale. 1. A free standing PCD body comprising a PCD material formed of combination of intergrown diamond grains forming a diamond network and an interpenetrating metallic network , the PCD body not being attached to a second body or substrate formed of a different material during any stage of its manufacture , wherein:a) the diamond network is formed of diamond grains having a plurality of grain sizes, the diamond network comprising a grain size distribution having an average diamond grain size, wherein the largest component of the diamond grain size distribution is no greater than three times the average diamond grain size; andb) the PCD material forming the free standing PCD body is homogeneous, the PCD body being spatially constant and invariant with respect to diamond network to metallic network volume ratio, wherein the homogeneity is measured at a scale greater than ten times the average grain size and spans the dimension of the PCD body, the PCD material being macroscopically residual stress free at said scale.2. The free standing ...

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Номер записи: 56
21-02-2019 дата публикации

WEAR RESISTANT COATING

Номер: US20190054574A1
Автор: Bell Andrew
Принадлежит:

A composite material comprising a plurality of round particles bound together by a binding material. Each of the plurality of round particles includes a wear resistant element, an intermediate coating on the wear resistant element, and a round outer layer encapsulating the intermediate coating and the wear resistant element. The intermediate coating is metallurgically bonded to the wear resistant element, and is metallurgically bondable to the binding material. 1. A composite material , comprising: a wear resistant element;', 'an intermediate coating on the wear resistant element; and', 'a round outer layer encapsulating the intermediate coating and the wear resistant element;, 'a plurality of round particles bound together by a binding material, each of the plurality of round particles comprisingwherein the intermediate coating is metallurgically bonded to the wear resistant element, and is metallurgically bondable to the binding material.2. The composite material of claim 1 , wherein the composite material is configured to form a brazing rod.3. The composite material of claim 2 , wherein the composite material is heated to form the brazing rod.4. The composite material of claim 3 , wherein the binding material is melted to form a monolithic matrix of metallic binding material.5. A coating on a substrate claim 1 , wherein the coating comprises the composite material of .6. The composite material of claim 1 , wherein the round outer layer is metallurgically bonded to the intermediate coating.7. The composite material of claim 1 , wherein the round outer layer is penetrated by the binding material.8. The composite material of claim 7 , wherein the binding material is metallurgically bonded to at least one of an inner surface and an outer surface of the round outer layer.9. The composite material of claim 7 , wherein the binding material is metallurgically bonded to the intermediate layer.10. The composite material of claim 1 , wherein the outer layer comprises a ...

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Номер записи: 57
21-02-2019 дата публикации

Polycrystalline Diamond Cutting Elements Having lead or Lead Alloy Additions

Номер: US20190055788A1
Автор: Gledhill Andrew, LONG Christopher Allen
Принадлежит: DIAMOND INNOVATIONS, INC.

Polycrystalline diamond cutting elements having enhanced thermal stability, drill bits incorporating the same, and methods of making the same are disclosed herein. In one embodiment, a cutting element includes a substrate having a metal carbide and a polycrystalline diamond body bonded to the substrate. The polycrystalline diamond body includes a plurality of diamond grains bonded to adjacent diamond grains by diamond-to-diamond bonds and a plurality of interstitial regions positioned between adjacent diamond grains. At least a portion of the plurality of interstitial regions comprise lead or lead alloy, a catalyst material, metal carbide, or combinations thereof. At least a portion of the plurality of interstitial regions comprise lead or lead alloy that coat portions of the adjacent diamond grains such that the lead or lead alloy reduces contact between the diamond and the catalyst. 111.-. (canceled)12. A method of forming a cutting element , comprising:{'b': '90', 'assembling a reaction cell comprising a plurality of diamond particles, lead or lead alloy having lead present in an amount of at least about wt. % of the lead alloy, a catalyst material, and a substrate within a refractory metal container; and'} the diamond particles are compacted into a densified unbonded diamond region in which at least some of the diamond particles are separated by interstitial regions;', 'the lead or lead alloy is melted and is present in a liquid state in at least some of the interstitial regions between diamond particles; and', 'the catalyst material is melted and is present in at least some of the interstitial regions between the individual diamond grains, wherein the catalyst material promotes formation of diamond-to-diamond bonds between adjacent diamond particles,, 'subjecting the reaction cell and its contents to a high pressure high temperature sintering process to form a continuous diamond volume in whichwherein the lead or lead alloy coats surfaces of at least a portion ...

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Номер записи: 58
02-03-2017 дата публикации

METHODS OF FABRICATING POLYCRYSTALLINE DIAMOND, AND CUTTING ELEMENTS AND EARTH-BORING TOOLS COMPRISING POLYCRYSTALLINE DIAMOND

Номер: US20170058614A1
Автор: Agrawal Gaurav, Chakraborty Soma, DiGiovanni Anthony A.
Принадлежит:

Methods of fabricating polycrystalline diamond include subjecting a particle mixture to high pressure and high temperature (HPHT) conditions to form inter-granular diamond-to-diamond bonds. Before being subjected to HPHT conditions, the particle mixture includes a plurality of non-diamond nanoparticles, diamond nanoparticles, and diamond grit. The non-diamond nanoparticles includes carbon-free cores and at least one functional group attached to the cores. Cutting elements for use in an earth-boring tool include a polycrystalline diamond material formed by such processes. Earth-boring tools include such cutting elements. 1. A method of fabricating polycrystalline diamond , comprising: a plurality of non-diamond nanoparticles, each comprising a carbon-free core and at least one functional group attached thereto;', 'diamond nanoparticles; and', 'diamond grit., 'subjecting a particle mixture to high pressure and high temperature (HPHT) conditions to form inter-granular diamond-to-diamond bonds, wherein the particle mixture comprises, before subjecting to the HPHT conditions2. The method of claim 1 , further comprising functionalizing at least some of the plurality of non-diamond nanoparticles with functional groups formulated to form diamond.3. The method of claim 1 , further comprising functionalizing at least some of the plurality of non-diamond nanoparticles with functional groups comprising carbon and hydrogen.4. The method of claim 1 , wherein subjecting a particle mixture to HPHT conditions comprises at least partially decomposing the at least one functional group.5. The method of claim 4 , wherein at least partially decomposing the at least one functional group comprises forming elemental carbon and elemental hydrogen.6. The method of claim 1 , further comprising exposing the carbon-free cores to a methane gas environment before subjecting the particle mixture to HPHT conditions.7. The method of claim 6 , wherein exposing the carbon-free cores to a methane gas ...

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Номер записи: 59
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: 60
27-02-2020 дата публикации

CUBIC BORON NITRIDE COMPOSITE MATERIAL, METHOD OF USING IT, METHOD OF MAKING IT AND TOOL COMPRISING IT

Номер: US20200062656A1
Автор: Can Antionette, MOTCHELAHO Anne Myriam Megne, OZBAYRAKTAR MEHMET SERDAR
Принадлежит:

A composite material and a method of using the composite material. The composite material consists of at least 65 volume percent cubic boron nitride (cBN) grains dispersed in a binder matrix, the binder matrix comprising a plurality of microstructures bonded to the cBN grains and a plurality of intermediate regions between the cBN grains; the microstructures comprising nitride or boron compound of a metal; and the intermediate regions including a silicide phase containing the metal chemically bonded with silicon; in which the content of the silicide phase is 2 to 6 weight percent of the composite material, and in which the cBN grains have a mean size of 0.2 to 20 μm. 127-. (canceled)29. The method as claimed in claim 28 , in which the silicide phase precursor is in powder form claim 28 , the mean grain size of the grains of the silicide phase powder being 0.1 to 5 microns.30. The method as claimed in claim 28 , in which the metal comprised in the silicide phase precursor is titanium (Ti).31. The method as claimed in claim 30 , in which the silicide precursor comprises a titanium silicide material having the chemical formula TiSi claim 30 , where x is 0.9 to 1.1 and y is 0.9 to 1.1.3233-. (canceled)34. The method as claimed in claim 28 , including producing the silicide phase claim 28 , bycombining the metal and Si in elemental form such that the metal and the Si will be capable of reacting with each, forming a pre-reaction combination;treating the pre-reaction combination such that the metal reacts with the Si to form reacted material comprising the silicide phase; andcomminuting the reacted material to provide a plurality of the grains of the silicide phase.35. The method as claimed in claim 34 , including comminuting the reacted material by means of attrition milling.37. (canceled) This disclosure relates generally to composite material comprising cubic boron nitride (cBN) dispersed in a binder matrix comprising metal silicide material; machine tools comprising ...

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Номер записи: 61
08-03-2018 дата публикации

SUPERHARD PCD CONSTRUCTIONS AND METHODS OF MAKING SAME

Номер: US20180065894A9
Автор: Can Nedret, NAIDOO Melisha, VISINTAINER Carlo
Принадлежит:

A polycrystalline super hard construction comprises a body of polycrystalline diamond (PCD) material and a plurality of interstitial regions between inter-bonded diamond grains forming the polycrystalline diamond material. The body of PCD material comprises a working surface positioned along an outside portion of the body, and a first region adjacent the working surface, the first region being a thermally stable region. The first region and/or a further region and/or the body of PCD material has/have an average oxygen content of less than around 300 ppm. A method of forming such a construction is also disclosed. 1. A polycrystalline super hard construction comprising a body of polycrystalline diamond (PCD) material and a plurality of interstitial regions between inter-bonded diamond grains forming the polycrystalline diamond material; the body of PCD material comprising:a working surface positioned along an outside portion of the body;a first region adjacent the working surface, the first region being a thermally stable region; whereinthe first region and/or a further region and/or the body of PCD material has/have an average oxygen content of less than around 300 ppm.2. The polycrystalline super hard construction of claim 1 , wherein the first region is substantially free of a solvent/catalysing material for diamond.3. The polycrystalline super hard construction of claim 1 , further comprising the further region claim 1 , the further region being remote from the working surface and comprising solvent/catalysing material in a plurality of the interstitial regions; wherein the oxygen content of the further region is less than around 300 ppm.4. The polycrystalline super hard construction of claim 1 , wherein the thermally stable region and/or a further region and/or the body of PCD material has/have an average oxygen content of between around 10 ppm to around 300 ppm.5. The polycrystalline super hard construction of claim 1 , wherein the thermally stable region and/or ...

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Номер записи: 62
09-03-2017 дата публикации

Polycrystalline diamond, methods of forming same, cutting elements, and earth-boring tools

Номер: US20170066110A1
Автор: Marc W. Bird
Принадлежит: Baker Hughes Inc

A method of forming polycrystalline diamond includes providing an alloy over at least portions of a plurality of diamond particles, and subjecting the plurality of diamond particles to a high-temperature, high-pressure process to form a polycrystalline diamond material having inter-granular bonds between adjacent diamond particles. The alloy includes iridium and nickel, and a volume of the diamond particles is at least about 92% of a total volume of the alloy and the diamond particles. The polycrystalline diamond material includes at least about 92% diamond by volume. A polycrystalline diamond compact includes grains of diamond bonded to one another by inter-granular bonds and an alloy disposed within interstitial spaces between the grains of diamond. The grains of diamond occupy at least 94% by volume of the polycrystalline diamond compact. An earth-boring tool may include a bit body and such a polycrystalline diamond compact.

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Номер записи: 63
08-03-2018 дата публикации

CUTTING ELEMENT INCORPORATING A CUTTING BODY AND SLEEVE AND AN EARTH-BORING TOOL INCLUDING THE CUTTING ELEMENT

Номер: US20180066478A1
Автор: DiGiovanni Anthony A., Hale Matthew S., Liversage John H., Lyons Nicholas J., Morozov Konstantin E., Scott Danny E., Sinor L. Allen
Принадлежит:

A cutting element for use in a drilling bit and/or a milling bit having a cutter body made of a substrate having an upper surface, and a superabrasive layer overlying the upper surface of the substrate. The cutting element further includes a sleeve extending around a portion of a side surface of the superabrasive layer and a side surface of the substrate, wherein the sleeve exerts a radially compressive force on the superabrasive layer. 1. A cutting element for use in a drilling and/or milling bit , comprising:a substrate having an upper surface;a superabrasive layer overlying the upper surface of the substrate, wherein the superabrasive layer comprises an upper surface, a rear surface secured to the upper surface of the substrate, and a side surface extending between the upper surface and the rear surface of the superabrasive layer; anda sleeve in direct contact with and extending around at least a portion of the side surface of the superabrasive layer and of a side surface of the substrate, wherein the sleeve exerts a radially compressive force on the superabrasive layer and on the substrate, wherein the radially compressive force on the superabrasive layer is greater than the radially compressive force on the substrate.2. The cutting element of claim 1 , wherein the sleeve extends over at least a portion of the upper surface of the superabrasive layer.3. The cutting element of claim 2 , wherein the sleeve extends over a majority of the upper surface of the superabrasive layer.4. The cutting element of claim 2 , wherein the sleeve extends over an entirety of the upper surface of the superabrasive layer.5. The cutting element of claim 2 , wherein a portion of the sleeve extending over the at least a portion of the upper surface of the superabrasive layer comprises a central opening therein claim 2 , a portion of the upper surface of the superabrasive layer exposed within the central opening.6. The cutting element of claim 2 , wherein a portion of the sleeve ...

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Номер записи: 64
17-03-2016 дата публикации

ANISOTROPICALLY ALIGNED CARBON NANOTUBES IN A CARBON NANOTUBE METAL MATRIX COMPOSITE

Номер: US20160074934A1
Автор: Pillon Nicholas
Принадлежит: DRESSER-RAND COMPANY

A method is provided for fabricating a carbon nanotube metal matrix composite. The method may include forming a molten mixture by combining carbon nanotubes with a molten solution. The carbon nanotubes combined with the molten solution may be dispersed therein. The method may also include transferring the molten mixture to a mold and applying a magnetic field to the molten mixture in the mold to substantially align at least a portion of the carbon nanotubes with one another. The method may further include solidifying the molten mixture in the mold to fabricate the carbon nanotube metal matrix composite, where at least a portion of the carbon nanotubes may be substantially aligned in the carbon nanotube metal matrix composite. 1. A method for fabricating a carbon nanotube metal matrix composite , comprising:forming a molten mixture by combining carbon nanotubes with a molten solution, the carbon nanotubes dispersed in the molten solution;transferring the molten mixture to a mold;applying a magnetic field to the molten mixture in the mold to substantially align at least a portion of the carbon nanotubes with one another; andsolidifying the molten mixture in the mold to fabricate the carbon nanotube metal matrix composite, the at least a portion of the carbon nanotubes substantially aligned in the carbon nanotube metal matrix composite.2. The method of claim 1 , further comprising inducing the carbon nanotubes into a magnetic state before combining the carbon nanotubes with the molten solution.3. The method of claim 1 , further comprising positioning an electromagnet about the mold claim 1 , the electromagnets configured to apply the magnetic field to the molten mixture.4. The method of claim 1 , further comprising positioning an electromagnet within the mold claim 1 , the electromagnets configured to apply the magnetic field to the molten mixture.5. The method of claim 1 , further comprising functionalizing the carbon nanotubes such that one or more chemical moieties ...

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Номер записи: 65
07-03-2019 дата публикации

METHODS OF FORMING POLYCRYSTALLINE DIAMOND

Номер: US20190070711A1
Автор: Bird Marc W.
Принадлежит:

A method of forming polycrystalline diamond includes providing an alloy over at least portions of a plurality of diamond particles, and subjecting the plurality of diamond particles to a high-temperature, high-pressure process to form a polycrystalline diamond material having inter-granular bonds between adjacent diamond particles. The alloy includes iridium and nickel, and a volume of the diamond particles is at least about 92% of a total volume of the alloy and the diamond particles. The polycrystalline diamond material includes at least about 92% diamond by volume. A polycrystalline diamond compact includes grains of diamond bonded to one another by inter-granular bonds and an alloy disposed within interstitial spaces between the grains of diamond. The grains of diamond occupy at least 94% by volume of the polycrystalline diamond compact. An earth-boring tool may include a bit body and such a polycrystalline diamond compact. 1. A method of forming polycrystalline diamond , comprising:providing an alloy over at least portions of a plurality of diamond particles, wherein the alloy comprises iridium and nickel, and wherein a volume of the diamond particles is at least about 92% of a total volume of the alloy and the diamond particles; andsubjecting the plurality of diamond particles to a high-temperature, high-pressure process to form a polycrystalline diamond material having inter-granular bonds between adjacent diamond particles, wherein the polycrystalline diamond material comprises at least about 92% diamond by volume.2. The method of claim 1 , wherein providing the alloy over at least portions of the plurality of diamond particles comprises covering at least 30% of a surface area of the plurality of diamond particles with the alloy.3. The method of claim 1 , wherein providing the alloy over at least portions of the plurality of diamond particles comprises forming a layer of the alloy having a thickness from about 1 nm to about 50 nm over the diamond particles.4 ...

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Номер записи: 66
07-03-2019 дата публикации

METHODS OF FUNCTIONALIZING CARBON NANOTUBES AND COMPOSITIONS COMPRISING FUNCTIONALIZED CARBON NANOTUBES

Номер: US20190071551A1
Автор: Smith Randall
Принадлежит:

Methods of treating carbon nanotubes include disposing a plurality of carbon nanotubes in a chamber; reducing a pressure of an atmosphere within the chamber; increasing a temperature within the chamber; and removing gases from interstices within at least some of the plurality of carbon nanotubes. A composition of matter includes a plurality of carbon nanotubes defining interstices therein; an inert gas disposed within at least some of the interstices in the carbon nanotubes; and a matrix material mixed with the plurality of carbon nanotubes. 1. A method of treating carbon nanotubes , the method comprising:disposing a plurality of carbon nanotubes in a chamber;reducing a pressure of an atmosphere within the chamber;increasing a temperature within the chamber; andremoving gases from interstices within at least some of the plurality of carbon nanotubes.2. The method of claim 1 , wherein reducing a pressure of an atmosphere within the chamber comprises reducing the pressure to 0.4 bar or lower.3. (canceled)4. The method of claim 1 , further comprising providing an inert gas to the chamber.5. (canceled)6. The method of claim 4 , further comprising displacing at least a portion of oxygen occupying the interstices with the inert gas.7. The method of claim 6 , further comprising retaining the inert gas within at least some of the plurality of carbon nanotubes after exposing the carbon nanotubes to an ambient atmosphere.8. The method of claim 1 , wherein the plurality of carbon nanotubes comprises single-wall carbon nanotubes.9. The method of claim 1 , wherein the plurality of carbon nanotubes comprises multi-wall carbon nanotubes.10. The method of claim 1 , wherein the plurality of carbon nanotubes comprises carbon nanotubes having a bimodal distribution of diameters.11. The method of claim 1 , further comprising mixing the plurality of carbon nanotubes with a matrix material.12. The method of claim 11 , wherein mixing the plurality of carbon nanotubes with a matrix ...

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Номер записи: 67
17-03-2016 дата публикации

Apparatuses and methods for obtaining at-bit measurements for an earth-boring drilling tool

Номер: US20160076355A1
Автор: Danny E. Scott, John Robert Brandon, Timothy Peter Mollart
Принадлежит: Baker Hughes Inc, Element Six Ltd

An earth-boring drilling tool comprises a cutting element. The cutting element comprises a substrate, a diamond table, and at least one sensing element formed from a doped diamond material disposed at least partially within the diamond table. A method for determining an at-bit measurement for an earth-boring drill bit comprises receiving an electrical signal generated within a doped diamond material disposed within a diamond table of a cutting element of the earth-boring drill bit, and correlating the electrical signal with at least one parameter during a drilling operation.

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Номер записи: 68
07-03-2019 дата публикации

Metal or alloy with improved physical and electrical properties

Номер: US20190071752A1
Автор: Bourque John M.
Принадлежит:

Disclosed is a method of forming a treated material. The method includes providing a high-speed blender; adding a solvent and brass granules to the blender and blending at high speed until mixed; adding copper granules to the blender and mixing at high speed until mixed; adding carbon nanotubes and graphene to the blender and mixing until blended. The mixture of solvent, brass granules, copper granules, carbon granules, carbon nanotubes, and graphene are added to an additional mixture of brass and copper and mixed until all of the granules are uniformly saturated. The mixture is then dried to a powder. Thereafter, the dry powder may be added to ferrous or nonferrous metal(s) in a high temperature crucible and then heated until melted. 1. A method of treating a material comprising:(a) providing a high-speed blender;(b) adding a solvent and brass granules to the blender and blending at high speed until mixed;(c) adding copper granules to the blender and blending at high speed until mixed;(d) adding carbon nanotubes (CNT) to the blender and blending until mixed;(e) adding graphene to the blender and blending until mixed;(f) mixing a solution produced by steps (b)-(e) into an additional mixture of brass and copper granules and mixing until all granules are uniformly saturated with the solution; and(g) drying the mixture of step (f) to a dry powder.2. The method of claim 1 , further including:(h) mixing the dry powder with one or more metals in a high-temperature crucible and heating until melted, wherein each of the one or more metals is a ferrous and/or nonferrous metal.3. The method of claim 1 , wherein at least one of the brass and copper granules are passed through 100 mesh.4. The method of claim 1 , wherein the solvent is acetone.5. The method of claim 1 , wherein about 1.9 liters-3.79 liters (½ gallon-1 gallon of acetone) is added to about 0.45 kilograms-0.91 kilograms (1 pound-2 pounds) of brass granules and mixed.6. The method of claim 1 , wherein about 0.45 ...

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Номер записи: 69
05-03-2020 дата публикации

SINTERED POLYCRYSTALLINE CUBIC BORON NITRIDE MATERIAL

Номер: US20200071583A1
Автор: Can Antionette, MOTCHELAHO Anne Myriam Megne
Принадлежит:

A polycrystalline cubic boron nitride, PCBN, material is provided. The material comprises between 30 and 90 weight percent cubic boron nitride (cBN) and a matrix material in which the cBN particles are dispersed. The matrix material comprises particles of an aluminium compound; the matrix material particles having a d50 when measured using a linear intercept technique of no more than 100 nm. 1. A method of making a polycrystalline cubic boron nitride , PCBN , material , the method comprising:mixing matrix precursor particles comprising particles having an average particle size no greater than 100 nm, the matrix precursor particles comprising an aluminium compound, with between 30 and 90 weight percent of cubic boron nitride, cBN, particles having an average particle size of at least 0.2 μm;sintering the mixed particles at a temperature of no less than 1000° C. and no more than 2200° C., and a pressure of at least 6 GPa to form the PCBN material comprising particles of cBN dispersed in a matrix material wherein the matrix material particles have a d75 when measured using an equivalent circle diameter technique of no more than 100 nm.2. The method according to claim 1 , wherein the matrix material further comprises titanium compounds of any of carbon and nitrogen.3. The method according to any one of or claim 1 , wherein the matrix material comprises any of titanium carbonitride claim 1 , titanium carbide claim 1 , titanium nitride claim 1 , titanium diboride claim 1 , aluminium nitride and aluminium oxide.4. The method according to or claim 1 , further comprising sintering at a temperature selected from any one of no more than 1700° C. claim 1 , no more than 1600° C. claim 1 , no more than 1500° C. claim 1 , no more than 1400° C. and no more than 1300° C.5. The method according to or claim 1 , wherein the step of intimately mixing the matrix powder and the cBN powder comprises any of wet acoustic mixing claim 1 , dry acoustic mixing and attrition milling.6. The ...

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Номер записи: 70
15-03-2018 дата публикации

ELONGATED, ULTRA HIGH CONDUCTIVITY ELECTRICAL CONDUCTORS FOR ELECTRONIC COMPONENTS AND VEHICLES, AND METHODS FOR PRODUCING THE SAME

Номер: US20180077797A1
Автор: Belk John Huntley, Braley Daniel Joseph, Hasan Zeaid F., Tanielian Minas H.
Принадлежит:

Elongated, ultra-high conductivity electrical conductors for use in advanced electronic components and vehicles, and methods for producing the same, are disclosed herein. The elongated electrical conductors include a conductor body that defines a longitudinal axis. The conductor body includes an isotropically conductive matrix material and a plurality of anisotropically conductive particles interspersed within the isotropically conductive matrix material. Each anisotropically conductive particle defines a respective axis of enhanced electrical conductivity that is aligned with the longitudinal axis of the conductor body. The methods include providing a bulk matrix-particle composite that includes the isotropically conductive matrix material and the plurality of anisotropically conductive particles. The methods further include forming the bulk matrix-particle composite into an elongated electrical conductor and aligning the plurality of anisotropically conductive particles such that the respective axis of enhanced electrical conductivity thereof is at least substantially aligned with the longitudinal axis of the elongated electrical conductor. 1. A method of defining an elongated electrical conductor , the method comprising:providing a bulk matrix-particle composite including:(i) an isotropically conductive matrix material; and(ii) a plurality of anisotropically conductive particles, wherein each anisotropically conductive particle in the plurality of anisotropically conductive particles defines a respective axis of enhanced electrical conductivity, wherein an electrical conductivity of each anisotropically conductive particle is greater along the respective axis of enhanced electrical conductivity than the electrical conductivity of the anisotropically conductive particle in at least one other direction that is different from the respective axis of enhanced electrical conductivity;forming the bulk matrix-particle composite into an elongated electrical conductor that ...

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Номер записи: 71
14-03-2019 дата публикации

Low heat capacity composite for thermal cycler

Номер: US20190076843A1
Автор: Han Oh Park, Jae Ha Kim
Принадлежит: Bioneer Corp

Provided is a low heat capacity composite for a thermal cycler. The low heat capacity composite of the present invention is a low heat capacity composite for a thermal cycler capable of overcoming difficulty in manufacture and reproducibility due to uniqueness of the existing PCR thermal cycler only. The low heat capacity composite of the present invention can reduce the cost of raw material and retain excellent heat property due to the improvement in low heat capacity and physical and mechanical properties, thereby remarkably shortening PCR reaction time and saving energy when used as a thermal block for a thermal cycler.

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Номер записи: 72
14-03-2019 дата публикации

CUTTING ELEMENTS, METHODS FOR MANUFACTURING SUCH CUTTING ELEMENTS, AND TOOLS INCORPORATING SUCH CUTTING ELEMENTS

Номер: US20190078390A1
Автор: Belnap J. Daniel, Cariveau Peter T., Shen Yuelin, Voronin Georgiy, Yu Feng, Zhan Guodong, Zhang Youhe
Принадлежит:

The present disclosure relates to cutting elements incorporating polycrystalline diamond bodies used for subterranean drilling applications, and more particularly, to polycrystalline diamond bodies having a high diamond content which are configured to provide improved properties of thermal stability and wear resistance, while maintaining a desired degree of impact resistance, when compared to prior polycrystalline diamond bodies. In various embodiments disclosed herein, a cutting element with high diamond content includes a modified PCD structure and/or a modified interface (between the PCD body and a substrate), to provide superior performance. 1. A cutting element comprising:a substrate comprising a substrate interface surface; and a diamond interface surface interfacing with the substrate interface surface,', 'a top surface opposite the diamond interface surface;', 'a cutting edge meeting the top surface; and', 'a material microstructure comprising a plurality of bonded-together diamond grains having an average grain size and interstitial regions between the diamond grains, the material microstructure comprising a first layer proximate the cutting edge and a second layer proximate the interface surface,, 'a polycrystalline diamond body formed by sintering at a cold cell pressure greater than 5.4 GPa, the polycrystalline diamond body comprising,'}wherein at least a region of the first layer has a diamond volume fraction, as measured by electron backscatter diffraction, greater than (0.9077)·(the diamond average grain sizê0.0221), with the diamond average grain size provided in microns,wherein the first layer has a diamond average grain size less than 12 microns, andwherein the second layer has a diamond volume fraction that is lower than the diamond volume fraction of the first layer first layer has a different diamond average particle size or diamond particle size distribution than the second layer.2. The cutting element of claim 1 , wherein the second layer has ...

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Номер записи: 73
26-03-2015 дата публикации

SILVER-BASED ELECTRICAL CONTACT MATERIAL

Номер: US20150086417A1
Автор: Liu Nan
Принадлежит: Schneider Electric Industries SAS

The present invention relates to a new silver-based electrical contact material, in which silver is in a continuous phase and carbon being in a nano-dispersed phase is dispersed in continuous phase silver. The content of the dispersed phase carbon in the silver-based electrical contact material can be 0.02% to 5% by weight, on the basis of the total weight of the silver-based electrical contact material. According to the present invention, the carbon contains carbon in a diamond form. Such a silver-based electrical contact material shows excellent mechanical wear resistance and electrical performance. 1. A silver-based electrical contact material , wherein silver is present as a continuous phase , and carbon is dispersed , as a nanoscale dispersed phase , in the silver continuous phase.2. The silver-based electrical contact material according to claim 1 , wherein the carbonaceous dispersed phase is present in an amount of from 0.02 to 5% by weight in the silver-based electrical contact material claim 1 , based on the total weight of the silver-based electrical contact material.3. The silver-based electrical contact material according to claim 1 , wherein the carbon comprises carbon in the form of diamond.4. The silver-based electrical contact material according to claim 3 , wherein the carbon in the form of diamond is generated in situ by the heat treatment of a carbonaceous mesophase.5. The silver-based electrical contact material according to obtained by subjecting a mixture of a silver source and the carbonaceous mesophase to a heat treatment claim 1 , preferably sintering claim 1 , wherein the silver source is silver powder prepared by a chemical method. The present application relates to a silver-based electrical contact material.Electrical contact materials, also known as materials used for electrical contacts or electrical conductor, contacts or connectors, are an important component found in electrical switches, such as high to low voltage electric switches. ...

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Номер записи: 74
23-03-2017 дата публикации

SUPERHARD PCD CONSTRUCTIONS AND METHODS OF MAKING SAME

Номер: US20170081247A1
Автор: Can Nedret, NAIDOO Melisha, VISINTAINER Carlo
Принадлежит:

A polycrystalline super hard construction comprises a body of polycrystalline diamond (PCD) material and a plurality of interstitial regions between inter-bonded diamond grains forming the polycrystalline diamond material. The body of PCD material comprises a working surface positioned along an outside portion of the body, and a first region adjacent the working surface, the first region being a thermally stable region. The first region and/or a further region and/or the body of PCD material has/have an average oxygen content of less than around 300 ppm. A method of forming such a construction is also disclosed. 1. A polycrystalline super hard construction comprising a body of polycrystalline diamond (PCD) material and a plurality of interstitial regions between inter-bonded diamond grains forming the polycrystalline diamond material; the body of PCD material comprising:a working surface positioned along an outside portion of the body;a first region adjacent the working surface, the first region being a thermally stable region; whereinthe first region and/or a further region and/or the body of PCD material has/have an average oxygen content of less than around 300 ppm.2. The polycrystalline super hard construction of claim 1 , wherein the first region is substantially free of a solvent/catalysing material for diamond.3. The polycrystalline super hard construction of claim 1 , further comprising the further region claim 1 , the further region being remote from the working surface and comprising solvent/catalysing material in a plurality of the interstitial regions; wherein the oxygen content of the further region is less than around 300 ppm.4. The polycrystalline super hard construction of claim 1 , wherein the thermally stable region and/or a further region and/or the body of PCD material has/have an average oxygen content of between around 10 ppm to around 300 ppm.5. The polycrystalline super hard construction of claim 1 , wherein the thermally stable region and/or ...

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Номер записи: 75
29-03-2018 дата публикации

POLYCRYSTALLINE DIAMOND COMPACT WITH GRADIENT INTERFACIAL LAYER

Номер: US20180087134A1
Автор: Atkins William Brian, Chang Andy Cheng, Liang Qi, Lively Paul B., Saini Gagan
Принадлежит:

The present disclosure relates to a polycrystalline diamond compact (PDC) including a gradient interfacial layer between a thermally stable diamond (TSP) table and a base, such as a substrate or an earth-boring drill bit body. The gradient interfacial layer has a gradient of coefficients of thermal expansion between that of the diamond and the base. The disclosure also relates to methods of forming a gradient interfacial layer and a PDC containing such a layer. 1. A method of forming a polycrystalline diamond compact (PDC) , the method comprising:forming a gradient interfacial layer having a gradient of coefficients of thermal expansion (CTEs) ranging between the CTE of a thermally stable diamond (TSP) table and the CTE of a base by forming a plurality of sublayers, at least two of which have different CTEs, and attaching the plurality of sublayers to one another;attaching the gradient interfacial layer to the TSP table; andattaching the gradient interfacial layer to the base.2. The method of claim 1 , wherein the gradient of coefficients of thermal expansion forms a CTE profile claim 1 , which may be linear claim 1 , non-linear claim 1 , or sigmoidal.3. The method of claim 2 , wherein the CTE profile is non-linear and is step-wise by sublayer.4. The method of claim 1 , wherein each sublayer of the gradient interfacial layer claim 1 , at least at a time of initial formation claim 1 , comprises diamond grains claim 1 , a catalyst claim 1 , and a sacrificial binder.5. The method of claim 4 , wherein the sublayer is subjected to a high temperature high pressure (HTHP) process after initial formation to form a sintered sublayer.6. The method of claim 5 , wherein the sintered sublayer comprises diamond grains and catalyst.7. The method of claim 5 , wherein the sintered sublayer is leached to remove at least a portion of the catalyst from at least a portion of the sublayer.8. The method of claim 4 , wherein at least one sublayer is formed using additive manufacturing ...

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Номер записи: 76
30-03-2017 дата публикации

Polycrystalline diamond compacts, related products, and methods of manufacture

Номер: US20170089145A1
Автор: Debkumar MUKHOPADHYAY, Jair J. Gonzalez
Принадлежит: US Synthetic Corp

Embodiments relate to polycrystalline diamond compacts (“PDCs”) and methods of manufacturing such PDCs in which an at least partially leached polycrystalline diamond (“PCD”) table is infiltrated with a low viscosity cobalt-based alloy infiltrant.

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Номер записи: 77
05-05-2022 дата публикации

Method for the economic manufacturing of metallic parts

Номер: US20220134421A1
Автор: ISAAC Valls Anglés
Принадлежит: Innomaq 21 SL

The present invention relates to a method for the economic production of metallic parts, with high flexibility in the geometry attainable. It also relates to the material required for the manufacturing of those parts. The method of the present invention allows for a very fast manufacturing of the parts. Also some forming technologies applicable to polymers can be used. The method allows for the fast and economic production of complex geometry metallic parts.

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Номер записи: 78
19-03-2020 дата публикации

METHOD FOR MAKING POLYCRYSTALLINE DIAMOND COMPACTS HAVING CURVED SURFACE

Номер: US20200087758A1
Автор: FANG Haijiang, LI Hongli, MA Shanshan, NIU Tongjian, Zhao Dongpeng
Принадлежит:

A method for making a polycrystalline diamond compact. The method includes: 1) preparing a workblank of a polycrystalline diamond compact; and 2) thermally- or cold-etching the curved surface of the workblank of the polycrystalline diamond compact using laser. The thermally- or cold-etching the curved surface of the workblank of the polycrystalline diamond compact includes: employing a laser generator to produce a laser beam, expanding the laser beam, focusing the laser beam, to yield an energy concentration area on the surface of the workblank of the polycrystalline diamond compact, and etching the curved surface using the energy concentration area. 1. A method for making a polycrystalline diamond compact having a curved surface , the method comprising:1) preparing a workblank of a polycrystalline diamond compact having a planar or curved surface; and2) thermally- or cold-etching the curved surface of the workblank of the polycrystalline diamond compact using laser.2. The method of claim 1 , wherein thermally- or cold-etching the surface of the workblank of the polycrystalline diamond compact comprises: employing a laser generator to produce a laser beam claim 1 , expanding the laser beam claim 1 , focusing claim 1 , to yield an energy concentration area on the surface of the workblank of the polycrystalline diamond compact claim 1 , and etching the curved surface using the energy concentration area.3. The method of claim 2 , wherein the thermally-etching the surface of the workblank of the polycrystalline diamond compact is carried out according to the following parameters: the workblank of the polycrystalline diamond compact is clamped in a work table claim 2 , a laser wavelength is 193-10600 nm claim 2 , a laser pulse frequency is 100-1000 kHz claim 2 , a pulse width is 1-100 ns claim 2 , a beam expansion ratio is between 1:2 and 1:50 claim 2 , a focal length of a focus lens is 20-200 mm; the etching is performed layer by layer in the form of table movement or ...

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Номер записи: 79
01-04-2021 дата публикации

POLYCRYSTALLINE DIAMOND CONSTRUCTIONS

Номер: US20210094881A1
Автор: EARDLEY EDWIN STEWART
Принадлежит:

A polycrystalline diamond (PCD) construction has a first region of a first grade of PCD material; and a second region of a second grade of PCD material, the first region being at least partially peripherally surrounded by the second region, the first and second regions being bonded to each other by direct inter-growth of diamond grains to form an integral PCD structure and a substrate bonded to the first and/or second region(s) along an interface. The first grade of PCD differs from the second grade in one or more of diamond and metal network compositional ratio, metal elemental composition, or average diamond grain size, the first grade of PCD material having a larger average diamond grain size than the second grade of PCD material, and/or a smaller volume percentage of residual catalyst and/or binder in interstitial spaces between interbonded diamond grains than the PCD material of the second region. 1. A polycrystalline diamond (PCD) construction comprising:a first region comprising a first grade of PCD material; anda second region comprising a second grade of PCD material, the first region being at least partially peripherally surrounded by the second region, the first and second regions being bonded to each other by direct inter-growth of diamond grains to form an integral PCD structure; wherein:the first grade of PCD material differs from the second grade of PCD material in one or more of diamond and metal network compositional ratio, metal elemental composition, or average diamond grain size, the first grade of PCD material having a larger average diamond grain size than the average diamond grain size of the second grade of PCD material, and/or a smaller volume percentage of residual catalyst and/or binder in interstitial spaces between interbonded diamond grains than the in the PCD material of the second region; and a substrate bonded to the first and/or second region(s) along an interface.2. The PCD construction of claim 1 , wherein the first region forms ...

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Номер записи: 80
12-05-2022 дата публикации

SUPERHARD CONSTRUCTIONS & METHODS OF MAKING SAME

Номер: US20220144646A1
Автор: BOWES DAVID, Can Nedret, NELMS DEREK, Nilen Roger William Nigel, SITHEBE HUMPHREY
Принадлежит:

A superhard construction comprises a substrate comprising a peripheral surface, an interface surface and a longitudinal axis and a super hard material layer formed over the substrate and having an exposed outer surface forming a working surface, a peripheral surface extending therefrom and an interface surface. One of the interface surface of the substrate or the interface surface of the super hard material layer comprises one or more projections arranged to project from the interface surface, the height of the one or more projections being between around 0.2 mm to around 1.0 mm measured from the lowest point on the interface surface from which the one or more projections extend. 1. A superhard construction comprising:a substrate comprising a peripheral surface, an interface surface and a longitudinal axis; anda super hard material layer formed over the substrate and having an exposed outer surface forming a working surface, a peripheral surface extending therefrom and an interface surface;wherein one of the interface surface of the substrate or the interface surface of the super hard material layer comprises:one or more projections arranged to project from the interface surface, the height of the one or more projections being between around 0.2 mm to around 1.0 mm measured from the lowest point on the interface surface from which the one or more projections extend.2. The superhard construction of claim 1 , wherein the height of the one or more projections is between around 0.3 mm to around 0.8 mm.3. The superhard construction of claim 1 , wherein all or a majority of the interface surface between the spaced-apart projections is non-curved and extends in one or more planes which are not substantially parallel to the plane of the exposed outer surface of the super hard material layer.4. The superhard construction of claim 1 , the substrate having a central longitudinal axis claim 1 , wherein all or a majority of the interface surface between the spaced-apart ...

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Номер записи: 81
28-03-2019 дата публикации

ALUMINUM-DIAMOND-BASED COMPOSITE AND HEAT DISSIPATION COMPONENT

Номер: US20190093201A1
Автор: Ishihara Yosuke, KOYANAGI Kazunori, Miyakawa Takeshi, Tsukamoto Hideo
Принадлежит: Denka Company Limited

Provided is an aluminum-diamond-based composite which can be processed with high dimensional accuracy. The flat-plate-shaped aluminum-diamond-based composite is coated with a surface layer of which the entire surface has an average film thickness of 0.01-0.2 mm and which contains not less than 80 volume % of a metal containing an aluminum. 1. An aluminum-diamond-based composite in a form of a flat plate , the aluminum-diamond-based composite comprising an overall surface coated with a surface layer having an average film thickness of from 0.01 to 0.2 mm , the surface layer containing 80% by volume or more of a metal containing aluminum.2. The aluminum-diamond-based composite according to claim 1 , wherein the aluminum-diamond-based composite has a frequency distribution of a particle size on volume basis in which a first peak is at a particle diameter of from 5 to 25 μm and a second peak is at a particle diameter of from 55 to 195 μm claim 1 , and one of the first peak and the second peak is the highest peak and the other is the second highest peak; and wherein the aluminum-diamond-based composite comprises from 50% to 80% by volume of diamond powder claim 1 , the diamond powder having a ratio of an area (A) of a particle size of from 1 to 35 μm to an area (A) of a particle size of from 45 to 205 μm of A:A=from 1:9 to 4:6.3. The aluminum-diamond-based composite according to claim 1 , wherein each edge and thickness of the aluminum-diamond-based composite has a dimensional error of ±0.020 mm or less.4. The aluminum-diamond-based composite according to claim 1 , wherein the aluminum-diamond-based composite comprises a surface metal layer on the surface layer claim 1 , the surface metal layer being comprised of a Ni layer having a film thickness of from 0.5 μm to 6.5 μm and an Au layer having a film thickness of 0.05 μm or more claim 1 , in this order from the surface layer side.5. The aluminum-diamond-based composite according to claim 4 , wherein the surface metal ...

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Номер записи: 82
03-07-2014 дата публикации

Heat dissipating component for semiconductor element

Номер: US20140182824A1
Автор: Hideki Hirotsuru, Hideo Tsukamoto, Yosuke Ishihara
Принадлежит: Denki Kagaku Kogyo KK

Disclosed is a heat dissipating component for a semiconductor element, having a tabular body 0.4-6 mm in thickness containing 40-70 volume % of diamond particles, with the balance comprising metal of which the principal component is aluminum, and coated on both surfaces by a coating layer comprising metal of which the principal component is aluminum, or an aluminum-ceramic based composite material, to form an aluminum-diamond based composite body. On at least the two major surfaces thereof are formed, in order from the major surface side, (1) an amorphous Ni alloy layer 0.1-1 μm in film thickness, (2) an Ni layer 1-5 μm in film thickness, and (3) an Au layer 0.05-4 μm in film thickness, the ratio of the Ni alloy layer and the Ni layer (Ni alloy layer thickness/Ni layer thickness) being 0.3 or less.

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Номер записи: 83
13-04-2017 дата публикации

Cubic boron nitride sintered body cutting tool

Номер: US20170101346A1
Автор: Kenji Yumoto, Yosuke Miyashita
Принадлежит: Mitsubishi Materials Corp

A cBN sintered material cutting tool is provided. The cBN cutting tool includes a cutting tool body, which is a sintered material including cBN grains and a binder phase, wherein the sintered material comprises: the cubic boron nitride grains in a range of 40 volume % or more and less than 60 volume %; and Al in a range from a lower limit of 2 mass % to an upper limit Y, satisfying a relationship, Y=−0.1X+10, Y and X being an Al content in mass % and a content of the cubic boron nitride grains in volume %, respectively, the binder phase comprises: at least a Ti compound; Al 2 O 3 ; and inevitable impurities, the Al 2 O 3 includes fine Al 2 O 3 grains with a diameter of 10 nm to 100 nm dispersedly formed in the binder phase, and there are 30 or more of the fine Al 2 O 3 grains generated in an area of 1 μm×1 μm in a cross section of the binder phase.

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Номер записи: 84
23-04-2015 дата публикации

METHOD OF MAKING A CBN MATERIAL

Номер: US20150110663A1
Автор: Kauppi Annika, Martensson Malin, Selinder Torbjorn, Shao Rui, Weinl Gerold
Принадлежит:

A cBN material and a method of making a cBN material, the method including the steps of providing a powder mixture comprising cBN grains, aluminum and a Ti(CxNyOz)a powder, subjecting the powder mixture to a milling to form a powder blend, subjecting the powder blend to a forming operation to form a green body, subjecting the green body to a pre-sintering step, at a temperature between 650 to 950° C., to form a pre-sintered body, and subjecting the pre-sintered body to a HPHT operation to form the cBN material. For the Ti(CxNyOz)a powder, 0.05≦z≦0.4. In addition, a cBN material includes cBN grains, an Al2O3 phase, a binder phase of TiC, TiN and/or TiCN, W and Co, whereby a quotient Q is <0.25 of the cBN material. 1. A method of making a cBN material comprising:providing a powder mixture comprising cBN grains, aluminum and a Ti(CxNyOz)a powder;subjecting the powder mixture to a milling operation to form a powder blend;subjecting the powder blend to a forming operation to form a green body;subjecting said green body to a pre-sintering step, at a temperature between about 650 to about 950° C., to form a pre-sintered body; andsubjecting said pre-sintered body to a HPHT operation to form the cBN material, wherein for said Ti(CxNyOz)a powder, 0.05≦z≦0.4.2. A method according to claim 1 , wherein the Ti(CxNyOz)a powder is provided in an amount of 10 to 70 wt % of the total dry powder weight of the powder mixture.3. A method according to claim 1 , wherein for the Ti(CxNyOz)a powder claim 1 , 0.01≦x≦0.95 claim 1 , 0≦y≦0.95 and 0.05≦z≦0.4.4. A method according to claim 1 , wherein for the Ti(CxNyOz)a powder claim 1 , 0.3≦x≦0.95 claim 1 , 0≦y≦0.5 and 0.05≦z≦0.3.5. A method according to claim 1 , wherein for the Ti(CxNyOz)a powder claim 1 , 0.9≦a≦1.1.6. A method according to claim 1 , wherein aluminum is provided in an amount of 1 to 10 wt % of the total dry powder weight of the powder mixture.7. A method according to claim 1 , wherein W is added such that the amount of W is 1 ...

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Номер записи: 85
23-04-2015 дата публикации

Polycrystalline material, bodies comprising same, tools comprising same and method for making same

Номер: US20150111065A1
Автор: Bernd Heinrich Ries, Frank Friedrich Lachmann, Igor Yurievich KONYASHIN
Принадлежит: ELEMENT SIX GMBH

Polycrystalline material comprising a plurality of nano-grains of a crystalline phase of an iron group element and a plurality of crystalline grains of material including carbon (C) or nitrogen (N); each nano-grain having a mean size less than 10 nanometres.

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Номер записи: 86
20-04-2017 дата публикации

POLYCRYSTALLINE DIAMOND COMPACTS AND METHODS OF MANUFACTURE

Номер: US20170107768A1
Автор: Atkins William Brian, Saini Gagan
Принадлежит: Halliburton Energy Services, Inc.

An example polycrystalline diamond compact includes a substrate and a diamond table attached to the substrate. A multilayer joint interposes the substrate and the diamond table and comprises at least two component parts selected from the group consisting of a base layer, one or more intermediate layers, and a braze layer. The at least two component parts are formed via a thin film deposition process. 1. A polycrystalline diamond compact , comprising:a substrate;a diamond table attached to the substrate; anda multilayer joint interposing the substrate and the diamond table, the multilayer joint comprising at least two component parts selected from the group consisting of a base layer, one or more intermediate layers, and a braze layer,wherein the at least two component parts are formed via a thin film deposition process.2. The polycrystalline diamond compact of claim 1 , wherein the diamond table is made of an ultra-hard material selected from the group consisting of polycrystalline diamond claim 1 , polycrystalline cubic boron nitride claim 1 , impregnated diamond claim 1 , thermally stable polycrystalline diamond claim 1 , and any combination thereof.3. The polycrystalline diamond compact of claim 1 , wherein the diamond table is formed by a high-temperature claim 1 , high-pressure (HTHP) press cycle.4. The polycrystalline diamond compact of claim 3 , wherein the diamond table is leached to become thermally stable following the HTHP press cycle.5. The polycrystalline diamond compact of claim 3 , wherein the diamond table is attached to the substrate by at least one of a brazing process claim 3 , hot pressing claim 3 , and a lower high-temperature claim 3 , high-pressure (HTHP) press cycle.6. The polycrystalline diamond compact of claim 1 , wherein the thin film deposition process is selected from the group consisting of physical vapor deposition claim 1 , chemical vapor deposition claim 1 , sputtering claim 1 , pulsed laser deposition claim 1 , chemical solution ...

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Номер записи: 87
11-04-2019 дата публикации

POLYCRYSTALLINE DIAMOND BODIES INCORPORATING FRACTIONATED DISTRIBUTION OF DIAMOND PARTICLES OF DIFFERENT MORPHOLOGIES

Номер: US20190106327A1
Автор: BIRD Marc William, GLEDHILL Andrew Dean, JOHNSON Alexanne, SCOTT Danny Eugene
Принадлежит:

Diamond bodies and methods of manufacture are disclosed. Diamond bodies are formed from at least a bimodal, alternatively a tri-modal or higher modal, feedstock having at least one fraction of modified diamond particles with a fine particle size (0.5-3.0 μm) and at least one fraction of diamond particles with coarse particle size (15.0 to 30 μm). During high pressure—high temperature processing, fine particle sized, modified diamond particles in the first fraction preferentially fracture to smaller sizes while preserving the morphology of coarse particle sized diamond particles in the second fraction. Diamond bodies incorporating the two fractions have a microstructure including second fraction diamond particles dispersed in a continuous matrix of first fraction modified diamond particles and exhibit improved wear characteristics, particularly for wear associated with drilling of geological formations. 1. A polycrystalline diamond body , comprising a plurality of diamond grains that are bonded to one another through diamond particle-to-diamond particle bonds , the diamond grains comprise a first fraction and a second fraction;', 'the first fraction has a first median particle distribution D50;', 'the second fraction has a second median particle distribution D50, the second fraction of diamond grains comprising at least about 60 vol. % of the diamond grains in the diamond body; and', 'the second median particle distribution D50 is at least about 7 times the first median particle distribution D50., 'wherein2. The polycrystalline diamond body of claim 1 , wherein the first fraction of diamond grains are positioned to separate each of the diamond grains of the second fraction from one another.3. A polycrystalline diamond body claim 1 , comprising a plurality of diamond grains that are bonded to one another through diamond particle-to-diamond particle bonds claim 1 , the diamond grains comprise a first fraction and a second fraction;', 'the first fraction has a first ...

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Номер записи: 88
09-06-2022 дата публикации

Graphene-reinforced alloy composite material and preparation method thereof

Номер: US20220178003A1
Автор: Bo Du, Keqing Luo, Xuquan Zhu, Yongquan Zhu
Принадлежит: Beijing Feilixin Information Security Technology Co Ltd

A graphene-reinforced alloy composite material and a preparation method thereof are disclosed. The method includes preparing a porous graphene colloid, smelting a first-part alloy, pouring it into the porous graphene colloid to be formed, subjecting the formed product to a hot extrusion, and pulverizing into a powder I; smelting a second-part alloy into an alloy melt II, adding a high-purity silicon powder therein, mixing by stirring, and atomizing to obtain a powder II; mixing the powder I and the powder II, to obtain a pretreated alloy powder; placing the pretreated alloy powder in a high-purity ark, transferring the high-purity ark to a high-temperature tubular furnace, subjecting the pretreated alloy powder to a redox treatment, and introducing methane and hydrogen to grow graphene, to obtain a coated alloy powder; subjecting the coated alloy powder to a pre-compressing molding and sintering, to obtain the graphene-reinforced alloy composite material.

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Номер записи: 89
27-04-2017 дата публикации

CUTTING ELEMENTS AND TOOLS COMPRISING INTERBONDED GRAINS OF DIAMOND AND RELATED METHODS

Номер: US20170113974A1
Автор: DiGiovanni Anthony A.
Принадлежит:

Methods of forming a polycrystalline compact using at least one metal salt as a sintering aid. Such methods may include forming a mixture of the at least one metal salt and a plurality of grains of hard material and sintering the mixture to form a hard polycrystalline material. During sintering, the metal salt may melt or react with another compound to form a liquid that acts as a lubricant to promote rearrangement and packing of the grains of hard material. The metal salt may, thus, enable formation of hard polycrystalline material having increased density, abrasion resistance, or strength. The metal salt may also act as a getter to remove impurities (e.g., catalyst material) during sintering. The methods may also be employed to form cutting elements and earth-boring tools. 1. A cutting element comprising:a sintered diamond table comprising interbonded grains of diamond, the grains of diamond defining interstitial spaces within the sintered diamond table; andlithium fluoride within the interstitial spaces of the sintered diamond table.2. The cutting element of claim 1 , wherein the cutting element further comprises silicon within the interstitial spaces of the sintered diamond table.3. The cutting element of claim 1 , further comprising a substrate claim 1 , wherein the sintered diamond table is secured to a surface of the substrate.4. The cutting element of claim 1 , further comprising claim 1 , within the interstitial spaces of the sintered diamond table claim 1 , at least one metallic element selected from the group consisting of the elements of Group VIII of the Periodic Table of the Elements.5. The cutting element of claim 4 , wherein the at least one metallic element comprises cobalt.6. The cutting element of claim 1 , further comprising claim 1 , within the interstitial spaces of the sintered diamond table claim 1 , at least one material selected from the group consisting of carbonates claim 1 , sulfates claim 1 , hydroxides claim 1 , and fullerenes.7. An ...

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Номер записи: 90
27-04-2017 дата публикации

BRAKING MEMBER FOR BRAKE SYSTEM AND METHOD FOR MAKING IT

Номер: US20170114847A1
Автор: Ferrari Alberto, FERRARI Isidoro
Принадлежит:

This disclosure relates to a braking member () for a brake system () and a method for making it. The braking member () comprises at least one friction portion () intended to be put into contact with a component () of the brake system () to produce a braking action due to a friction force. The surface () and/or the friction portion () is made of a composite material comprising diamond particles () and a binder (). 1. A braking member for a brake system , said braking member comprising at least one friction portion having a surface intended to be put into contact with a component of the brake system to produce a braking action due to a friction force between said surface and said component , wherein the surface and/or the friction portion is made of a composite material comprising diamond particles and a binder.2. The braking member according to claim 1 , wherein the composite material comprises a matrix of binder and diamond particles embedded in the matrix of binder.3. The braking member according to claim 1 , wherein the binder is a metal material claim 1 , in particular the binder is a material selected from a group comprising: aluminium claim 1 , copper claim 1 , titanium claim 1 , magnesium claim 1 , cobalt claim 1 , iron claim 1 , cast iron claim 1 , steel claim 1 , an alloy of two or more of these materials.4. The braking member according to a claim 1 , wherein said composite material comprises the binder and a single layer claim 1 , or single-grain layer claim 1 , of diamond particles claim 1 , said composite material forming a surface layer which forms the surface of the friction portion.5. The braking member according to claim 4 , the diamond particles of said single layer being positioned according to a regular grid wherein the diamond particles are spaced from one another and the binder is interposed between the diamond particles.6. The braking member according to claim 4 , wherein the diamond particles occupy a fraction of the surface that is between 20% ...

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Номер записи: 91
04-05-2017 дата публикации

ALUMINUM-BASED COMPOSITE MATERIAL AND METHOD FOR PRODUCING THE SAME

Номер: US20170120340A1
Автор: KONDOH Katsuyoshi, OTSUKA Yasufumi, Yoshinaga Satoru
Принадлежит: Yazaki Corporation

An aluminum-based composite material includes a plurality of coarse crystalline grains () of pure aluminum, and a plurality of fine crystalline grains () each having an aluminum matrix (), and a dispersion material () dispersed inside the aluminum matrix and formed by reacting a portion or all of an additive with aluminum in the aluminum matrix. The fine crystalline grains exist among the coarse crystalline grains, and the fine crystalline grains have crystalline grain diameters smaller than crystalline grain diameters of the coarse crystalline grains. 1. An aluminum-based composite material comprising:a plurality of coarse crystal grains of pure aluminum; anda plurality of fine crystal grains each having an aluminum matrix, and a dispersion material dispersed inside the aluminum matrix and formed by reacting a portion or all of an additive with aluminum in the aluminum matrix, whereinthe fine crystal grains exist among the coarse crystal grains, andthe fine crystal grains have crystal grain diameters smaller than crystal grain diameters of the coarse crystal grains.2. The aluminum-based composite material according to claim 1 , wherein the additive is at least one selected from the group consisting of carbon nanotubes claim 1 , carbon nanohorns claim 1 , carbon blacks claim 1 , boron carbides claim 1 , and boron nitrides.3. The aluminum-based composite material according to claim 1 , whereina ratio of a long axis to a short axis (long axis/short axis) of the dispersion material is 1 to 30,the long axis ranges from 0.01 nm to 500 nm, andthe short axis ranges from 0.01 nm to 200 nm.4. An aluminum-based composite material comprising:a plurality of coarse crystalline grains each having an aluminum matrix, and a dispersion material dispersed inside the aluminum matrix and formed by reacting a portion or all of an additive with aluminum in the aluminum matrix; anda plurality of fine crystalline grains each having an aluminum matrix, and a dispersion material dispersed ...

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Номер записи: 92
25-04-2019 дата публикации

PCBN COMPACT FOR MACHINING OF FERROUS ALLOYS

Номер: US20190118344A1
Автор: Dues Lawrence Thomas, Yumoto Kenji
Принадлежит:

The present application is a new improvement in the fine-grained cubic Boron Nitride sintered compact which may be employed to manufacture a cutting tool. The compact contains at least 80 vol % cBN and is sintered under HPHT conditions. The invention has lower levels of unreacted cobalt in the final sintered material than conventions materials. The invention has proved beneficial in the machining of ferrous metal alloys such as sintered metal alloys. 2. The compact of claim 1 , wherein CoB represents between 3 vol % and 15 vol % of the material.3. The compact of claim 1 , wherein claim 1 , Co not reacted with W or B represents 1-3 vol % of the material.4. The compact of claim 1 , wherein the binder comprises CoB claim 1 , Co claim 1 , and WB claim 1 , wherein CoB is 3-15 vol % claim 1 , unalloyed cobalt is 1-3 vol % claim 1 , and WB is 0.1-10 vol % claim 1 , and wherein a ratio CoB/Co is 3-15 claim 1 , and a ratio CoB/WB is 0.5-15.5. The compact of claim 1 , wherein the binder grain size is 0.3-0.7 micron as represented by D50.6. The compact of claim 1 , wherein the cBN content is between 85 vol % and 95 vol % cBN.7. The compact of claim 1 , wherein the cemented carbide backing is cemented WC.8. The compact of claim 1 , wherein the HPHT pressure is at least 5.5 GPa.9. The compact of claim 1 , where in the HPHT pressure is at least 6 GPa.10. The compact of claim 1 , wherein the aluminum source comprises at least one of elemental aluminum or an aluminum intermetallic.11. The compact of claim 10 , wherein the aluminum source comprises of elemental aluminum claim 10 , NiAl claim 10 , or TiAl.12. The compact of claim 1 , wherein the cobalt source comprises a cemented carbide backing.13. The compact of claim 12 , wherein the cobalt source comprises a cemented WC backing.14. The compact of claim 1 , wherein the cBN particles have a D50 less than 5 microns.15. The compact of claim 1 , wherein the compact is used as a component of a cutting tool.16. The compact of claim 1 , ...

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Номер записи: 93
25-04-2019 дата публикации

Conductive Diamond Application Method and System

Номер: US20190118346A1
Автор: Erick Merle Spory
Принадлежит: Global Circuit Innovations Inc

A method is provided. The method includes preparing a surface to receive a 3D printed layer, 3D printing a conductive layer comprising a plurality of overlaid layers of conductive material to the surface, and 3D printing conductive diamonds to the conductive layer. Preparing the surface includes one or more of texturing the surface and chemically treating the surface. The texturing is performed in order to not adversely impact regularity of the surface and limit variations in the height from the surface of conductive diamonds. Chemically treating the surface reduces films or coatings that may impact adhesion between the surface and the conductive layer, without degrading the conductive layer.

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Номер записи: 94
25-04-2019 дата публикации

METHODS OF MAKING CUTTING ELEMENTS AND EARTH-BORING TOOLS AND RESULTING CUTTING ELEMENTS

Номер: US20190119989A1
Автор: Lyons Nicholas J., Scott Danny E.
Принадлежит:

Methods of forming cutting elements may involve providing a thermally stable polycrystalline table and a substrate portion located adjacent to the thermally stable polycrystalline table in a mold. A metal material may be provided over the substrate portion on a side of the substrate portion opposing the thermally stable polycrystalline table in the mold, the metal material exhibiting a melting temperature of less than 1,320° C. A mixture of particles may be distributed on the metal material in the mold. The mold and its contents may be exposed to a temperature less than 1,320° C. and pressure may be applied to the mixture of particles to cause the mixture of particles to coalesce and form a substrate and to at least partially melt the metal material to flow, infiltrate the substrate portion, and wet the thermally stable polycrystalline table and the substrate to form an attachment therebetween. 1. A method of forming a cutting element , comprising:providing a thermally stable polycrystalline table and a substrate portion located adjacent to the thermally stable polycrystalline table in a mold, the thermally stable polycrystalline table comprising interbonded grains of a superhard material and interstitial spaces among the interbonded grains of the superhard material, the thermally stable polycrystalline table being at least substantially devoid of catalyst material used to form intergranular bonds among the interbonded grains of the superhard material;providing a metal material over the substrate portion on a side of the substrate portion opposing the thermally stable polycrystalline table in the mold, the metal material exhibiting a melting temperature of less than 1,320° C.;distributing a mixture of particles comprising a plurality of hard particles and a plurality of particles comprising a matrix material on the metal material in the mold; andexposing the mold and its contents to a temperature less than 1,320° C. and applying pressure to the mixture of particles ...

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Номер записи: 95
10-05-2018 дата публикации

Metal-Nanostructure Composites

Номер: US20180126456A1
Автор: Li Ju, SO Kang Pyo
Принадлежит:

A metal-nanostructure composite includes a nanostructure-metal matrix composite. The nanostructure-metal matrix composite includes a host metal and nanofiller dispersed in the grains of the metal. The nanofillers can include both one-dimensional nanostructures (e.g., nano-tubes, nano-rods, nano-pillars, etc.) and two-dimensional nanostructures (e.g., graphene, nano-foam, nano-mesh, etc.) to improve the radiation resistance and mechanical properties of the host metal. A method of manufacturing the metal-nanostructure composite includes obtaining carbon nanotubes (CNTs) and encapsulating the CNTs with metal particles. The method also includes consolidating the encapsulated CNTs and forming (e.g., via extrusion) the consolidated metal/CNTs to produce the metal-nanostructure composite. 1. A method , comprising:obtaining carbon nanotubes (CNTs);atomically welding the CNTs with metal particles to create CNT-embedded metal particles;consolidating the CNT-embedded metal particles; andforming the consolidated metal/CNTs.2. The method of claim 1 , wherein the consolidating includes spark plasma sintering.3. The method of claim 1 , wherein the consolidating includes forming metal-CNT covalent bonds.4. The method of claim 1 , wherein obtaining the CNTs includes declustering CNTs on surfaces of metal particles.5. The method of claim 1 , further comprising:coating the CNTs prior to atomic welding.6. The method of claim 1 , further comprising:coating the CNTs prior to atomic welding, wherein the coating is a polar covalent coating.7. The method of claim 6 , wherein the coating is at least one of a silicon compound claim 6 , oxygen compound claim 6 , boron compound claim 6 , nitrogen compound claim 6 , and/or carbon compound.8. The method of claim 1 , further comprising:coating the CNTs prior to atomic welding, wherein the coating is a carbide coating.9. The method of claim 1 , further comprising:coating the CNTs prior to atomic welding, wherein the coating is silicon carbide.10. ...

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Номер записи: 96
10-05-2018 дата публикации

SUPERHARD CONSTRUCTIONS & METHODS OF MAKING SAME

Номер: US20180126516A1
Автор: KANYANTA VALENTINE, Kasonde Maweja, OZBAYRAKTAR MEHMET SERDAR
Принадлежит:

A superhard polycrystalline construction comprises a body of polycrystalline superhard material comprising a first superhard phase having a first average grain size; and a second superhard phase having a second average grain size. The second superhard phase is located in one or more channels or apertures in the first superhard phase, the first superhard phase forming a skeleton in the body of superhard material. The second superhard phase is bonded to the first superhard phase by a non-superhard phase and the first superhard phase differs from the second superhard phase in average grain size and/or composition. There is also disclosed a method of making such a superhard polycrystalline construction. 1. A superhard polycrystalline construction comprising:a body of polycrystalline superhard material, the body of polycrystalline superhard material comprising:a first superhard phase having a first average grain size; anda second superhard phase having a second average grain size;wherein the second superhard phase is located in one or more channels or apertures in the first superhard phase, the first superhard phase forming a skeleton in the body of superhard material, the second superhard phase being bonded to the first superhard phase by a non-superhard phase;and wherein the first superhard phase differs from the second superhard phase in average grain size and/or composition.2. A superhard polycrystalline construction according to claim 1 , wherein the superhard grains of the first and the second superhard phases comprise natural and/or synthetic diamond grains claim 1 , the superhard polycrystalline construction forming a polycrystalline diamond construction.3. A superhard polycrystalline construction according to any one of the preceding claims claim 1 , wherein the non-superhard phase comprises a binder phase.4. A superhard polycrystalline construction according to claim 3 , wherein the binder phase comprises cobalt claim 3 , and/or one or more other iron group ...

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Номер записи: 97
21-05-2015 дата публикации

MULTI-LAYERED POLYCRYSTALLINE DIAMOND STRUCTURE

Номер: US20150135603A1
Автор: Can Nedret, Naidoo Kaveshini
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A polycrystalline diamond structure comprises a first region and a second region adjacent the first region, the second region being bonded to the first region by intergrowth of diamond grains. The first region comprises a plurality of alternating strata or layers (), (), each or one or more strata or layers in the first region having a thickness in the range of around 5 to 300 microns. The polycrystalline diamond (PCD) structure has a diamond content of at most about 95 percent of the volume of the PCD material, a binder content of at least about 5 percent of the volume of the PCD material, and one or more of the layers or strata in the first region comprise and/or the second region comprises diamond grains having a mean diamond grain contiguity of greater than about 60 percent and a standard deviation of less than about 2.2 percent. There is also disclosed a method of making such a poly crystalline diamond structure. 1. A polycrystalline diamond structure comprising a first region and a second region adjacent the first region , the second region being bonded to the first region by intergrowth of diamond grains , the first region comprising a plurality of alternating strata or layers , each or one or more strata or layers in the first region having a thickness in the range of around 5 to 300 microns; wherein the polycrystalline diamond (PCD) structure has a diamond content of at most about 95 percent of the volume of the PCD material , a binder content of at least about 5 percent of the volume of the PCD material , and one or more of the layers or strata in the first region comprise and/or the second region comprises diamond grains having a mean diamond grain contiguity of greater than about 60 percent and a standard deviation of less than about 2.2 percent.2. A PCD structure according to claim 1 , wherein each stratum or layer in the first region has a thickness in the range of around 30 to 300 microns.3. A PCD structure according to claim 1 , wherein one or more ...

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Номер записи: 98
11-05-2017 дата публикации

COMPOSITE BODY AND METHOD FOR MANUFACTURING SAME

Номер: US20170130300A1
Автор: Ishihara Yosuke, Miyakawa Takeshi, Narita Shinya
Принадлежит: Denka Company Limited

A composite is obtained by press-molding a mixed powder comprising 20-50 vol % of a metal powder and 50-80 vol % of a diamond powder for which a first peak in a volumetric distribution of particle size lies at 5-25 μm, and a second peak lies at 55-195 μm, and a ratio between the area of a volumetric distribution of particle sizes of 1-35 μm and the area of a volumetric distribution of particle sizes of 45-205 μm is from 1:9 to 4:6, thereby obtaining a composite having a high thermal conductivity and a coefficient of thermal expansion close to that of semiconductor devices, which is easy to mold into a prescribed shape. 1. A composite obtained by press-molding a mixed powder comprising 20-50 vol % of a metal powder and 50-80 vol % of a diamond powder for which a first peak in a volumetric distribution of particle size lies at 5-25 μm , and a second peak lies at 55-195 μm , and a ratio between the area of a volumetric distribution of particle sizes of 1-35 μm and the area of a volumetric distribution of particle sizes of 45-205 μm is from 1:9 to 4:6.2. The composite as in claim 1 , wherein the metal powder is an aluminum powder claim 1 , an aluminum alloy powder claim 1 , or a mixed powder comprising of aluminum and a metal other than aluminum.3. A heat-dissipating component for use in semiconductor devices claim 1 , having sequentially formed claim 1 , on the surface of the composite as in claim 1 , a metal layer comprising (1) an Ni layer having a film thickness of 0.5-6.5 μm claim 1 , (2) an amorphous Ni alloy layer having a film thickness of 0.5-6.5 μm claim 1 , and (3) an Au layer having a film thickness of 0.05-4 μm claim 1 , wherein the total film thickness of the Ni layer and the amorphous Ni alloy layer is 1.0-10 μm.4. A method for manufacturing a composite claim 1 , comprising the steps of:filling a mold with a mixed powder comprising 20-50 vol % of a metal powder and 50-80 vol % of a diamond powder for which a first peak in a volumetric distribution of ...

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Номер записи: 99
02-05-2019 дата публикации

SYNTHESIS OF EFFECTIVE CARBON NANOREINFORCEMENTS FOR STRUCTURAL APPLICATIONS

Номер: US20190126517A1
Автор: Calderon Hector A., Okonkwo Anderson, Robles Francisco C.
Принадлежит: UNIVERSITY OF HOUSTON SYSTEM

A methodology is disclosed to produce nanostructured carbon particles that act as effective reinforcements. The process is conducted in the solid state at close to ambient conditions. The carbon nanostructures produced under this discovery are nanostructured and are synthesized by mechanical means at standard conditions. The benefit of this processing methodology is that those carbon nanostructures can be used as effective reinforcements for composites of various matrices. As example, are to demonstrate its effectiveness the following matrices were including in testing: ceramic, metallic, and polymeric (organic and inorganic), as well as bio-polymers. The reinforcements have been introduced in those matrices at room and elevated temperatures. The raw material is carbon soot that is a byproduct and hence abundant and cheaper than pristine carbon alternatives (e.g. nanotubes, graphene). 1. A method of synthesizing carbon nano-reinforcement material , the method comprising:a. obtaining fullerene soot with less than 10% by weight of fullerene; andb. subjecting the soot to mechanical milling for between 0.5 and 50 hours to obtained a milled product; andc. combining the milled product with at least one liquid polymer matrix to form a complex and hardening the complex to form a reinforced structure; andwherein the elongation at break of the polymer structure reinforced with soot is at least 40% greater than a hardened polymer structure that has not been reinforced with soot.2. The method of claim 1 , wherein the milled product does not include nanodiamonds.3. The method of claim 1 , wherein the milled product includes nano-diamonds.4. The method of claim 1 , wherein the milled product comprises graphitic carbon.5. The method of claim 1 , wherein the milled product comprises less than 15% by weight of sp3 bonded carbon species after milling.6. The method of claim 1 , wherein the milled product comprises less than 20% by weight of sp3 bonded carbon species after milling.7. ...

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Номер записи: 100