ДИЭЛЕКТРИЧЕСКИЙ КЕРАМИЧЕСКИЙ МАТЕРИАЛ, СОСТАВ ПАСТЫ ДЛЯ ТОЛСТОЙ ПЛЕНКИ И СПОСОБ ПОЛУЧЕНИЯ ДИЭЛЕКТРИЧЕСКОГО КЕРАМИЧЕСКОГО МАТЕРИАЛА

FIELD: chemistry industry. SUBSTANCE: claimed ceramic composition comprises powder of alumina silicon dioxide, alkaline earth metal silicate or titanate and/or zirconate or lead with coating layer composed of metal oxides distributed homogeneously over surface. Oxide coating is deposited from metal chelate solution, with strong base added to said solution. Also claimed is paste composition for thick film comprising mixture of uncoated dielectric ceramic powder and coated dielectric powder. EFFECT: improved properties of the dielectric ceramic material. Сс97910сС ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (13) ВИ” 2 075 462 ``” С1 (51) М с 04 В 35/00, 35/46, 35/462, 35/49, 35/491 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 5053053/33, 22.01.1991 (30) Приоритет: 28.02.1990 1$ 506965 (46) Дата публикации: 20.03.1997 (71) Заявитель: Е.И.Дюпон де Немур энд Компани (0$) (72) Изобретатель: Сальваторе Бруно[Ц$] (73) Патентообладатель: (56) Ссылки: Патент США М 4579594, кл. С 09К Е.И.Дюпон де Немур энд Компани (ЦЗ) ЗЮО0, 1986. Патент США М 3330697, кл. 421-79, 1967. Заявка РСТ М №0880 8830, 04В 35/46, 1988. Патент США М 3490927, 106-39, 1969. Патент США М 4640905, кл. 106-137, 1987. Патент США М 4897318, кл. С 050 5/12, 1990. Заявка Франции М 2149398, кл. С 04В 35/00, 1973, Патент США М 4668299, кл. С 04В 1400, 1987. (86) Заявка РСТ: 1$ 9100299 (22.01.91) кл. С КЛ. (54) ДИЭЛЕКТРИЧЕСКИЙ КЕРАМИЧЕСКИЙ МАТЕРИАЛ, СОСТАВ ПАСТЫ ДЛЯ ТОЛСТОЙ ПЛЕНКИ И СПОСОБ ПОЛУЧЕНИЯ ДИЭЛЕКТРИЧЕСКОГО КЕРАМИЧЕСКОГО МАТЕРИАЛА (57) Реферат: Использование: изобретение относится к улучшенным керамическим составам и способу их получения. Сущность изобретения: улучшенный керамический диэлектрический состав содержит керамический порошок глинозема, диоксид кремния, силиката или титаната и/или цирконата щелочноземельного металла или свинца с гомогенно распределенным на поверхности слоем покрытия из смеси оксидов металлов. Оксидное — покрытие осаждается из ...

ПОЛИМЕРИЗУЕМЫЙ НЕОРГАНИЧЕСКИЙ-ОРГАНИЧЕСКИЙ РАСТВОР ПРЕДШЕСТВЕННИКА ДЛЯ НАНОРАЗМЕРНЫХ ОКСИДОВ МЕТАЛЛОВ, ЕГО ПРИМЕНЕНИЕ ДЛЯ ПОЛУЧЕНИЯ СПЕЧЕННОЙ МЕМБРАНЫ И ЕЕ ПРИМЕНЕНИЕ

1. Полимеризуемый неорганический-органический раствор предшественника для наноразмерных оксидов металлов, получаемый способом, включающим стадии: ! (a) получение раствора, по крайней мере, одного катиона металла и органического соединения, и ! (b) нагревание раствора до температуры от 20 до 300°С с получением полимеризуемого раствора предшественника для наноразмерных оксидов, и ! (c) завершение нагревания, когда вязкость при комнатной температуре составит от 10 до 500 мПа·сек. ! 2. Полимеризуемый неорганический-органический раствор предшественника по п.1, где, по крайней мере, один катион металла выбирают из группы, включающей Се, Gd, Co, Al, Sm, Fe, Mg, Ni, Y, Zr, La, Sr, Mn, Sc, Ti и их смеси. ! 3. Полимеризуемый неорганический-органический раствор предшественника по п.1, где, по крайней мере, одно органическое соединение имеет карбонильную группу или является мономерным соединением. ! 4. Полимеризуемый неорганический-органический раствор предшественника по п.3, где, по крайней мере, одним органическим соединением является этиленгликоль, лимонная кислота или ацетилацетон. ! 5. Спеченная мембрана, получаемая способом, включающим стадии: ! (a) смешивание полимеризуемого неорганического-органического раствора предшественника с порошком керамического оксида, растворителем и, необязательно, по крайней мере, одним полимерным соединением с получением смеси, ! (b) размол на шаровой мельнице смеси с получением суспензии, ! (c) формование суспензии, ! (d) спекание формованной суспензии с получением спеченной мембраны. ! 6. Спеченная мембрана по п.5, где суспензию формуют на субстрате и субстрат спекают одновременно с формованной суспензией. ! 7. Спеченная мембра

Stabilisierte Metalloxide.

FEINTEILIGE, SPHAERISCHE, ZWEISCHICHTIGE FESTSTOFFTEILCHEN

A PCD body

A PCD body comprises a skeletal mass of inter-bonded diamond grains 22 defining interstices 24 between them. At least some of the interstices contain a filler material comprising a metal catalyst material for diamond, the filler material containing Ti, W and an additional element M selected from the group consisting of V, Y, Nb, Hf, Mo, Ta, Zr Cr, Zr and the rare earth elements. The content of Ti within the filler material is at least 0.1 weight % and at most 20 weight %. The content of M within the filler material is at least 0.1 weight % and at most 20 weight %, and the content of W within the filler material is at least 5 weight % and at most 50 weight % of the filler material.

FERRITE-CERAMIC VERBUNDPULVER AND PROCEDURE FOR ITS PRODUCTION.

Barium titanate dispersions

POLYMERISED INORGANIC-ORGANIC PRECURSOR SOLUTIONS

Polymerised inorganic-organic precursor solution obtainable according to a process comprising the steps of (a) forming a solution of at least one metal cation and an organic compound and (b) heating the solution to a temperature between 20 -- 300°C to form a polymerised solution of precursor for nano--sized oxides, and (c) concluding the heating when the room temperature vis-cosity of the solution is from 10 to 500 mPa.cndot.s.

POLYCRYSTALLINE DIAMOND

A PCD body comprises a skeletal mass of inter-bonded diamond grains defining interstices between them. At least some of the interstices contain a filler material comprising a metal catalyst material for diamond, the filler material containing Ti, W and an additional element M selected from the group consisting of V, Y, Nb, Hf, Mo, Ta, Zr Cr, Zr and the rare earth elements. The content of Ti within the filler material is at least 0.1 weight % and at most 20 weight %. The content of M within the filler material is at least 0.1 weight % and at most 20 weight %, and the content of W within the filler material is at least 5 weight % and at most 50 weight % of the filler material.

STABILISED METAL OXIDES

STABILISED METAL OXIDES A composition suitable for use in the manufacture of ceramics comprises particulate zirconia the particles of which are coated with a hydrous oxide of yttrium and a hydrous oxide of manganese, iron, cobalt, nickel, copper or zinc. Preferably the particles also have an inner coating of titania, zirconia, hafnia or alumina. Ceramics prepared from the particulate zirconia of the invention are resistant to degradation by water at temperatures above 100.degree.C.

PROCESS FOR PREPARING COMPOSITE CERAMIC POWDERS AND POWDERS PRODUCED BY THE METHOD

Procédé de préparation d'une poudre céramique composite et poudre obtenue par le procédé.

Le procédé de préparation consiste à: - mélanger une poudre minérale présentant des propriétés d'échange de cations avec une solution comprenant un ou plusieurs ions métalliques complexes pour former une suspension et provoquer l'échange d'ions avec les ions métalliques sur la surface de la poudre minérale; - décomposer les ions complexes métalliques dans la suspension pour provoquer la précipitation des hydroxydes métalliques, oxydes métalliques ou sels métalliques basiques sur la surface de la poudre minérale; et - sécher la poudre minérale sur la surface de laquelle les hydroxydes métalliques, les oxydes métalliques ou les sels métalliques basiques ont précipité.

METHOD OF PREPARATION OF COMPOSITE CERAMIC POWDERS AND POWDERS OBTAINED BY THE PROCESS

SYNTHESIS OF MAGNETITE NANOPARTICLES AND THE PROCESS OF FORMING FE-BASED NANOMATERIALS

NANOPARTICLE ASSEMBLY-BASED SWITCHING DEVICE

The present invention relates to a switching device fabricated by using nanoparticles and a preparation method thereof. The present invention ensures the mass production of switching devices (e.g., memristor) by use of nanoparticles that exhibits reversible switching behavior at current of less than mA and at room temperature (25°C) 〧 250°C in a more convenient and economical manner. Predictions of the high potential of memristors based on nanoparticle assemblies are supported by the tremendous versatility to tune the electrical behavior of nanoparticles by controlling their nanoscale characteristics such as size, composition, dimension, surface area, and chemical potential.

Homogeneous solid solution material and method of manufacturing the same

A metal oxide-ceramic composite powder consisting of fine ceramic particles having a metal oxide coating firmly bonded to the surface thereof is molten at high temperature and then cooled to produce a material in the form of a solid solution in which the metal oxide component and the ceramic component are substantially homogeneously mixed together. Also, the metal oxide-ceramic composite powder is mixed with fine particles of a second ceramic and/or particles of a metal, and the mixture is baked to produce a sintered material.

Reactive nanoparticles as destructive adsorbents for biological and chemical contamination

Compositions and methods for destroying biological agents such as toxins and bacteria are provided wherein the substance to be destroyed is contacted with finely divided metal oxide or hydroxide nanocrystals. In various embodiments, the metal oxide or metal hydroxide nanocrystals have reactive atoms stabilized on their surfaces, species adsorbed on their surfaces, or are coated with a second metal oxide. The desired metal oxide or metal hydroxide nanocrystals can be pressed into pellets for use when a powder is not feasible. Preferred metal oxides for the methods include MgO, SrO, BaO, CaO, TiO2, ZrO2, FeO, V2O3, V2O5, Mn2O3, Fe2O3, NiO, CuO, Al2O3, SiO2, ZnO, Ag2O, [Ce(NO3)3Cu(NO3)2]TiO2, Mg(OH)2, Ca(OH)2, Al(OH)3, Sr(OH)2, Ba(OH)2, Fe(OH)3, Cu(OH)3, Ni(OH)2, Co(OH)2, Zn(OH)2, AgOH, and mixtures thereof.

COMPOSITE NANOPARTICLES

A composite nanoparticle includes a nanoparticle of mineral oxide and a shell of a transition metal oxide. The mineral oxide may be silica, alumina, or a mixture of such materials, and the shell of transition metal oxide at least partially surrounds the nanoparticle of mineral oxide. Methods of preparation include reacting a solution comprising a salt of a transition metal with a nanoparticle of the mineral oxide in the presence of a reducing agent and an organic stabilizing agent; drying the resulting mixture to form a dried mixture; and annealing the dried mixture to form the composite nanoparticle.

Primary particle coated with a colouring component

Die Erfindung betrifft Primärpartikel von Oxidkeramikmaterial, wobei die Primärpartikel eine durchschnittliche Partikelgröße im Bereich von 10 bis 1000 nm aufweisen und mit einer farbgebenden Komponente beschichtet sind, ein Verfahren zu deren Herstellung und ihre Verwendung insbesondere in der Herstellung von Keramikformteilen und Dentalrestaurationen. Die Erfindung betrifft ferner eine Suspension auf Basis von Oxidkeramikmaterial, die die Primärpartikel enthält, und ein Verfahren zur Herstellung eines Keramikformteils.

METHOD FOR PRODUCING COATED BARIUM TITANATE

PROBLEM TO BE SOLVED: To provide a material with barium titanate as a major component which is suitable for producing a multilayer ceramic capacitor provided with thin dielectric ceramic layers, e.g. of <4 μm. and having allowable or unparalleled electrical properties in d.c. leakage and breakdown voltage without requiring excessive pulverization. SOLUTION: In the method, the particles with barium titanate as the major component are hydrothermally produced; the particles with barium titanate as the major component are retained in a wet environment; and the surfaces of the particles with barium titanate as the major component are coated. The coating comprises an oxide, hydrous oxide, hydroxide or organic acid salt of a metal. The particles with barium titanate as the major component have the coating comprising one or more layers with different compositions. The layer comprises an oxide, hydrous oxide, hydroxide or organic acid salt of a metal. COPYRIGHT: (C)2004,JPO ...

STABILIZED METALLIC OXIDES.

Stabilised metal oxides

SILICATE-BASED SINTERING AID AND METHOD

The present invention is directed to a silicate-based sintering aid and a method for producing the sintering aid. The sintering aid, or frit, may be added to dielectric compositions, including barium titanate-based compositions, to lower the sintering temperature. The sintering aid may be a single or multi-component silicate produced via a precipitation reaction by mixing solutions including silicon species and alkaline earth metal species. The sintering aid can be produced as nanometer-sized particles, or as coatings on the surfaces of pre-formed dielectric particles. Dielectric compositions that include the sintering aid may be used to form dielectric layers in MLCCs and, in particular, ultra-thin dielectric layers.

ГИДРОГЕЛИ И ГИДРОЗОЛИ ОКСИДОВ МЕТАЛЛОВ, ИХ ПОЛУЧЕНИЕ И ПРИМЕНЕНИЕ

Способ получения гидрозоля одного или более чем одного оксида металла, например диоксида титана, включающий приготовление раствора алкоголята металла в смешивающемся с водой органическом растворителе, например спирте; приготовление водного растворителя; смешивание раствора алкоголята металла с водным растворителем в объемном или массовом соотношении с образованием однофазного водного коллоидного золя (гидрозоля) гидратированного оксида металла в отсутствие неионного блоксополимерного поверхностно-активного вещества. Также раскрыт соответствующий гидрогель; нерастворимые в воде частицы, инкапсулированные в гидратированном оксиде металла, и способ их инкапсуляции; применение продуктов инкапсуляции. A method for producing a hydrosol of one or more metal oxides, such as titanium dioxide, comprising preparing a solution of a metal alcoholate in a water-miscible organic solvent, such as an alcohol; preparation of an aqueous solvent; mixing a solution of a metal alcoholate with an aqueous solvent in a volume or mass ratio to form a single-phase aqueous colloidal sol (hydrosol) of a hydrated metal oxide in the absence of a non-ionic block copolymer surfactant. Also disclosed is a corresponding hydrogel; water-insoluble particles encapsulated in a hydrated metal oxide and a method for encapsulating them; application of encapsulation products.

ГИДРОГЕЛИ И ГИДРОЗОЛИ ОКСИДОВ МЕТАЛЛОВ, ИХ ПОЛУЧЕНИЕ И ПРИМЕНЕНИЕ

Способ получения гидрозоля одного или более чем одного оксида металла, например диоксида титана, включающий приготовление раствора алкоголята металла в смешивающемся с водой органическом растворителе, например спирте; приготовление водного растворителя; смешивание раствора алкоголята металла с водным растворителем в объемном или массовом соотношении с образованием однофазного водного коллоидного золя (гидрозоля) гидратированного оксида металла в отсутствие неионного блок-сополимерного поверхностно-активного вещества. Также раскрыт соответствующий гидрогель; нерастворимые в воде частицы, инкапсулированные в гидратированном оксиде металла, и способ их инкапсуляции; применения продуктов инкапсуляции.

A hard core soft-shell composite abrasive material and its preparation method and application

Procédé de préparation de poudres céramiques composites et poudres obtenues par le procédé

Le procédé de fabrication de poudres composites métal-céramique comprend les étapes consistant à former une suspension en mélangeant une poudre minérale ayant des propriétés d'échange de cations avec une solution contenant un ou plusieurs ions métalliques pour effectuer l'échange d'ions avec les ions métalliques sur la surface de la poudre minérale, à ajouter à la suspension un matériau formant précipité qui relâche un anion dans la solution lorsqu'elle est chauffée ou mise sous pression, à chauffer ou mettre sous pression la suspension pour relâcher l'anion qui réagit avec les ions métalliques pour précipiter les hydroxydes métalliques, les sels basiques de métaux ou les sels métalliques sur la surface de la poudre minérale, et ensuite à chauffer la poudre minérale avec les précipités résultants pour convertir les précipités en oxydes de métaux Les poudres composites métal-céramique sont fabriquées en réduisant en métal les oxydes métalliques ci-dessus sur la surface de la poudre minérale ...

CORE-SHELL STRUCTURED CERAMIC-NICKEL OXIDE COMPOSITE POWDER HAVING NICKEL HYDROXIDE DEPOSITED ON SURFACE OF CERAMIC POWDER DISPERSED BY BASIC SALT

PURPOSE: Provided are a core-shell structured ceramic-NiO composite powder, its preparation method, a fuel electrode for a solid oxide fuel cell using the composite powder, and its preparation method, to improve mechanical properties, oxidation/reduction stability and thermal cycle stability. CONSTITUTION: The core-shell structured ceramic-NiO composite powder is such that Ni(OH)2 is deposited on the surface of a ceramic powder particle for a fuel cell dispersed by a basic salt. Preferably the ceramic is a yttria-stabilized zirconia, a gadolinium-coated ceria, a scandium-coated zirconium, or a lanthanum-strontium-gallium-magnesium oxide. Preferably the ratio of the ceramic and NiO is 30-75 : 25-70 by weight. © KIPO 2006 ...

MAGNETIZABLE ABRASIVE PARTICLES AND ABRASIVE ARTICLES INCLUDING THEM

A magnetizable abrasive particle comprises a ceramic body having an outer surface and a magnetizable layer disposed on a portion, but not the entirety, of the outer surface. The ceramic body comprises a platelet having two opposed major facets connected to each other by a plurality of side facets. The magnetizable layer completely covers one of the two opposed major facets, and the magnetizable layer has a magnetic dipole oriented perpendicular or parallel to the facet which it completely covers. A plurality of the magnetizable abrasive particles, and abrasive articles including them are also disclosed. Methods of making the foregoing are also disclosed. 1. A magnetizable abrasive particle comprising a ceramic body having an outer surface and a magnetizable layer disposed on a portion , but not the entirety , of the outer surface , wherein the ceramic body comprises a platelet having two opposed major facets connected to each other by a plurality of side facets , wherein the magnetizable layer completely covers one of the two opposed major facets , and wherein the magnetizable layer has a magnetic dipole oriented perpendicular or parallel to the facet which it completely covers.2. The magnetizable abrasive particle of claim 1 , wherein the ceramic body comprises a shaped ceramic body.3. The magnetizable abrasive particle of claim 2 , wherein the shaped ceramic body comprises a precisely-shaped ceramic body.4. The magnetizable abrasive particle f claim 1 , wherein the magnetizable layer completely covers a single facet.5. The magnetizable abrasive particle of claim 1 , wherein the platelet is triangular.6. The magnetizable abrasive particle of claim 1 , wherein the magnetizable layer has a magnetic dipole oriented perpendicular to the facet which it completely covers.7. The magnetizable abrasive particle of claim 1 , wherein the magnetizable layer has a magnetic dipole oriented parallel to the facet which it completely covers.8. The magnetizable abrasive particle of ...

PROCESS FOR PREPARING COLORED BLANK AND DENTAL TYPE PART

PROBLEM TO BE SOLVED: To prepare oxide powder which avoids the defects of conventional techniques, contains a uniformly distributed colored compound, and is suitable for further processing into a dental repairing article from the uniformly colored oxide powder, and to provide a singly or multiply colored molded article, blank and dental type part which contain the uniformly distributed colored compound or containing the colored compound in a gradient or zone structure. SOLUTION: In an embodiment, there is provided a process for preparing a blank or dental type part containing a colored compound, comprising: (a) oxide powder is coated with a coloring substance; (b) the coating powder is, if necessary, graded and, if necessary, filled into a compression mold; (c) the colored powder is compressed to give a molded product; (d) the compressed molded product is sintered to produce the blank; and (e), if necessary, the dental type part is formed from the blank. COPYRIGHT: (C)2012,JPO&INPIT ...

Ceramic-ceramic or ceramic-metal composite powders having uniform 2nd - obtd. by cation-exchanging metal from soln. onto ceramic powder then converting metal to cpd.

An inorganic powder having a cation-exchange property is formed into a suspension with a metal-contg. soln. where metal ions are exchanged into its surface. A precipitant-forming material which releases an anion when subjected to heat or pressure is then added and heat or pressure applied so that the released anion forms metal hydroxide, salt or basic salt on the surface of the particles. The composite powder is heated to convert the metal cpd. into oxide, producing a ceramic-ceramic composite material. Opt., the metal oxide may be reduced to yield a ceramic-metal composite powder.

Verfahren zur Dotierung oder zum Einfärben von Keramik, Glaskeramik oder Glas

Bei einem Verfahren zur Dotierung oder zum Einfärben von Keramik, Glaskeramik oder Glas wird die Keramik, die Glaskeramik oder das Glas als Pulver oder Granulat bereitgestellt und dieses Pulver bzw. Granulat mit einer Lösung oder Suspension, die Metallionen und/oder Metallkomplexe enthält, in Kontakt gebracht. Dieses Verfahren findet insbesondere bei der Herstellung von Formkörpern, die mindestens teilweise aus den genannten Materialien bestehen, Verwendung. Vorzugsweise wird auf diese Weise ein Formkörper aus Dentalkeramik hergestellt.

Particulate zirconia coated with oxides

A composition suitable for use in the manufacture of ceramics comprises particulate zirconia the particles of which are coated with a hydrous oxide of yttrium and a hydrous oxide of manganese, iron, cobalt, nickel, copper or zinc. Preferably the particles also have an inner coating of titania, zirconia, hafnia or alumina. Ceramics prepared from the particulate zirconia of the invention are resistant to degradation by water at temperatures above 100 DEG C.

Core-shell ceramic particulate and method of making

BESCHICHTETE TEILCHEN VON GESCHMOLZENER TONERDE UND HERSTELLUNGSVERFAHREN HIERFÜR

BESCHICHTETE TEILCHEN VON GESCHMOLZENER TONERDE UND HERSTELLUNGSVERFAHREN HIERFÜR

PROCEDURE FOR DYEING SUBSTRATES

Polymerised inorganic-organic precursor solutions

REACTIVE NANOPARTICLES AS DESTRUCTIVE ADSORBENTS FOR BIOLOGICAL AND CHEMICAL CONTAMINATION

Compositions and method for destroying biological agents such as toxins are provided wherein the substance to be destroyed is contacted with finely divided metal oxide nanocrystals. In various embodiments, the metal oxide nanocrystals have reactive atoms stabilized on their surfaces, species adsorbed on their surfaces, or are coated with a second metal oxide. The desired metal oxide nanocrystals can be pressed into pellets for use when a powder is not feasible. The methods of the invention are safe for humans, equipment, and the environment, and provide for decontamination of warfare sites, of equipment exposed to the contaminant, and of soil, water, and air having been exposed to the contaminant. Preferred metal oxides for the methods include MgO, CaO, TiO2, ZrO2, FeO, V2O3, V2OS, MN2O3, Fe2O3, NiO, CuO, Al2O3, ZnO, and mixtures thereof. Preferred coating metal oxides include oxides of metals selected from the group consisting of Ti, V, Fe, Cu, Ni, Co, Mn, Zn, and mixtures thereof. Preferred ...

Piezoelectric composition and piezoelectric device

METHOD FOR THE DRY DISPERSION OF NANOPARTICLES AND THE PRODUCTION OF HIERARCHICAL STRUCTURES AND COATINGS

The invention relates to a method for the dispersion of synthetic or natural nanoparticles and nanocomposite materials and to the use thereof in different sectors including those of ceramics, coatings, polymers, construction, paints, catalysis, pharmaceuticals and powdered materials in general.

DISPERSIBLE, METAL OXIDE-COATED, BARIUM TITANATE MATERIALS

Barium titanate-based particles having a coating comprising an oxide, hydrous oxide, hydroxide or organic acid salt of a metal other than barium or titanium, wherein at least 90 percent of said particles have a particle size less than 0.9 micrometer when said particles are dispersed by high shear mixing, useful in the fabrication of thin, fine-grained dielectric layers for multilayer ceramic capacitors with high breakdown voltage.

Abrasive grain with metal oxide coating, method of making same and abrasive products

A method of preparing preferred abrasive grain material is provided. The method involves steps of coating a non-sintered aluminum base particles with a metal alkoxide containing coating; heating to convert the coating to a metal oxide coating; and then sinter the base particles to provide sintered particles having an alpha-alumina-based core with an autogenously bonded metal oxide coating. The invention also concerns improved abrasive grain materials and abrasive products including the improved abrasive grain materials therein.

Surface treated anode active material and method of making the same, anode including the same, and lithium battery including the same

An anode includes a collector; and an anode active material layer disposed on the collector comprises an anode active material, which is lithium oxide coated Li4Ti5O12, a conductive material, and a binder, wherein the lithium oxide intercalates and/or deintercalates lithium ions into and from the lattice structure of Li4Ti5O12. By coating the surface of the anode active material with lithium oxide, an anode including the surface-treated anode active material has a high capacity, high-rate properties, and a high initial efficiency.

Iron oxide powder, composition, ceramics, iron oxide powder precursor, method for producing iron oxide powder precursor, and method for producing iron oxide powder

An iron oxide powder includes a porous structure having the diameter of from 0.3 μm to 2 μm, wherein the iron oxide powder has an aluminum content of from 10 mol % to 80 mol %.

COMPOSITE CERAMIC MATERIAL AND A PRODUCTION METHOD THEREFOR

The present invention relates to a composite ceramic material for a fuel cell and a method for manufacturing the same. The composite ceramic material for the fuel cell forms a cored structure where perovskite ceramic particles having a small particle diameter surround lanthanum cobaltite particles having a large particle diameter, and lanthanum cobaltite is added as a starting material in a process of synthesizing the perovskite ceramic particles to be synthesized. The composite ceramic material for the fuel cell according to the present invention improves an electric connection characteristic between a separation plate and a polar plate of the fuel cell, and is chemically and mechanically stable.

Ferrite-ceramic composite powder and method of manufacturing the same

Disclosed is a ferrite-ceramic composite powder consisting of fine particles of a ceramic material having a ferrite coating firmly bonded to the surface thereof. The ferrite-ceramic composite powder is manufactured by the steps of immersing pellets of iron in an aqueous solution of ferric chloride in the presence of a magnetic field thereby turning the ferric chloride solution into an aqueous solution of a complex salt, mixing the complex salt solution with an aqueous solution of ferric chloride containing many fine particles of a ceramic material and agitating the mixture to obtain a composite aqueous solution, mixing an aqueous solution of caustic soda with the composite aqueous solution and agitating the mixture to cause deposition of crystals of a ferrite on the surface of the fine ceramic particles, rinsing the particles, and drying the particles.

METHOD FOR PREPARING A COMPOSITE CERAMIC POWDER AND POWDER OBTAINED BY THE METHOD.

Método para preparar um meio de sinterização, meio de sinterização, composição à base de titanato de bário, e capacitor de diversas camadas de cerâmica

POLYCRYSTALLINE DIAMOND

A PCD body comprises a skeletal mass of inter-bonded diamond grains defining interstices between them. At least some of the interstices contain a filler material comprising a metal catalyst material for diamond, the filler material containing Ti, W and an additional element M selected from the group consisting of V, Y, Nb, Hf, Mo, Ta, Zr Cr, Zr and the rare earth elements. The content of Ti within the filler material is at least 0.1 weight % and at most 20 weight %. The content of M within the filler material is at least 0.1 weight % and at most 20 weight %, and the content of W within the filler material is at least 5 weight % and at most 50 weight % of the filler material.

CONTROLLED DISTRIBUTION OF CHEMISTRY IN CERAMIC SYSTEMS

A method of the controlling the chemical and physical characteristics of a body formed from a powder precursor, including measuring a predetermined amount of a first particulate precursor material, wherein the first particulate precursor material defines a plurality of respective generally spherical first phase particles, adhering second phase particles to the respective first phase particles to define composite particles, forming the composite particles into a green body, and heating the green body to yield a fired body. The second phase particles adhered to the first phase particles are substantially uniformly distributed and a respective first phase particle defines a first particle diameter that is at least about 10 times larger than the second phase diameter defined by a respective second phase particle. The composite particles define a predetermined composition.

Stabilized metal oxides

A composition suitable for use in the manufacture of ceramics comprises particulate zirconia the particles of which are coated with a hydrous oxide of yttrium and a hydrous oxide of manganese, iron, cobalt, nickel, copper or zinc. Preferably the particles also have an inner coating of titania, zirconia, hafnia or alumina. Ceramics prepared from the particulate zirconia of the invention are resistant to degradation by water at temperatures above 100° C.

FABRICATION OF ULTRAFINE POLYCRYSTALLINE DIAMOND WITH NANO-SIZED GRAIN GROWTH INHIBITOR

The present disclosure relates to the formation of polycrystalline diamond materials with fine diamond grains and nano-sized particles of a grain growth inhibitor. In one embodiment, a method of fabricating a polycrystalline diamond material is provided. The method includes providing a mixture of diamond particles with an average particle size of about 1 micron or less, distributing a plurality of nano-sized titanium-containing particles with the diamond mixture, to act as a grain growth inhibitor, and sintering the mixture of diamond particles and titanium-containing particles at high pressure and high temperature to create a polycrystalline structure of sintered diamond grains. The sintered diamond grains have an average size of about 1 micron or less.

Process for producing zinc oxide varistor having high potential gradient and high non-linearity coefficient

A process for producing zinc oxide varistor is disclosed to allow that one step of having zinc oxide grains doped with non-equivalent ions and sufficiently semiconductorized and the other one step of preparing sintered powders having property of high-impedance are prepared by two separate procedures respectively, resulted in that the zinc oxide varistor produced by the process features both a high potential gradient and a high non-linearity coefficient; and more particularly the disclosed process is suited for producing a specific zinc oxide varistor whose potential gradient ranges from 2,000 to 9000 V/mm as well as non-linearity coefficient (α) ranges from 21.5 to 55.

Herstellung eines keramischen Pulvers

METHOD OF COLOURING CARRIER MATERIALS

POLYMERIZED INORGANIC-ORGANIC PRECURSOR SOLUTION USED AS A DISPERSING AGENT AND A SINTERING AGENT FOR A COLLOIDAL SUSPENSION OF CERAMIC OXIDE POWDER

PURPOSE: A polymerized inorganic-organic precursor solution is provided to increase density of a sintered film and decrease a temperature for sintering the sintered film as a sintering agent and disperse a colloidal suspension as a dispersing agent. CONSTITUTION: A polymerized inorganic-organic precursor solution comprises the following steps of: forming a solution having at least one metallic cation and at least one organic compound(a); heating the solution at a temperature of 20-300°C to form a nano-sized metallic oxide polymerized inorganic-organic precursor solution(b); and terminating a process of heating the solution when viscosity of the solution becomes 10-500 mPa·s at a room temperature(c). The metallic cation is selected from the group consisting of Ce, Gd, Co, Al, Sm, Fe, Mg, Ni, Y, Zr, La, Sr, Mn, Sc, Ti, and its compounds. © KIPO 2009 ...

SYNTHESIS OF MAGNETITE NANOPARTICLE AND METHOD FOR FORMING NANOMATERIAL USING IRON AS BASE

PURPOSE: A synthesis of a magnetite nanoparticle and a method for forming nanomaterial using iron as a base are provided to enable the particle size to be controlled. CONSTITUTION: A magnetite nanoparticle material is prepared by mixing an iron salt with an alcohol, a carboxylic acid and an amine in an organic solvent. The mixture is heated at 200-360 °C. The size of the particle is controlled by changing the ratio between iron salt/acid and amine or further coating the small nanoparticle with iron oxide. A magnetite nanoparticle having narrow size distribution of 2-20 nm is obtained. The method is easily expanded for a nanoparticle material coated with iron oxide. A nanoparticle material using iron sulfide as a base is also synthesized by replacing the alcohol in the reaction mixture by a thiol. © KIPO 2004 ...

Conversion of carbonaceous fuels into carbon free energy carriers

A system for converting fuel is provided and includes a first reactor comprising a plurality of ceramic composite particles, the ceramic composite particles comprising at least one metal oxide disposed on a support, wherein the first reactor is configured to reduce the at least one metal oxide with a fuel to produce a reduced metal or a reduced metal oxide; a second reactor configured to oxidize at least a portion of the reduced metal or reduced metal oxide from the said first reactor to produce a metal oxide intermediate; a source of air; and a third reactor communicating with said source of air and configured to regenerate the at least one metal oxide from the remaining portion of the solids discharged from the said first reactor and the solids discharged from the said second reactor by oxidizing the metal oxide intermediate.

Process for producing zno varistor with higher potential gradient and non-coefficient value

COMPOSITE CERAMIC MATERIAL AND A PRODUCTION METHOD THEREFOR

The present invention relates to a composite ceramic material for fuel cells and to a production method therefor. The composite ceramic material for fuel cells comprises a wick structure in which perovskite type ceramic particles of small particle size surround the circumferences of lanthanum cobaltite particles of large particle size, and the lanthanum cobaltite is synthesized in the process for synthesizing the perovskite type ceramic particles, by also being added as a starting material. The composite ceramic material for fuel cells of the present invention improves the electrical connecting characteristics between the separator plates and the polar plates of fuel cells, and is both chemically and mechanically stable.

NEW FLIP-FLOP INTERFERENCE PIGMENTS

A new flip-flop interference pigment comprises a transparent or semitransparent inorganic material flake as substrate. The surface of the substrate is coated with coating layers (A), (B), (C) and an optional coating layer (D) in sequence to form a coating structure with high/low/high refractive index. The coating layers (A) and (C), which are formed by high refractive index materials, include metal oxides, silicates, aluminates and/or the mixture thereof. The coating layer (B), which is formed by low refractive index materials, includes silicon oxide, hydrated silicon oxide, aluminum oxide, hydrated aluminum oxide, magnesium oxide, hydrated magnesium oxide and/or the mixture thereof. The pigments can be used for pigmenting of coating material, paint, ink, plastics, glass, ceramic products and formulating of cosmetics.

REACTIVE NANOPARTICLES AS DESTRUCTIVE ADSORBENTS FOR BIOLOGICAL AND CHEMICAL CONTAMINATION

Compositions and method for destroying biological agents such as toxins are provided wherein the substance to be destroyed is contacted with finely divided metal oxide nanocrystals. In various embodiments, the metal oxide nanocrystals have reactive atoms stabilized on their surfaces, species adsorbed on their surfaces, or are coated with a second metal oxide. The desired metal oxide nanocrystals can be pressed into pellets for use when a powder is not feasible. The methods of the invention are safe for humans, equipment, and the environment, and provide for decontamination of warfare sites, of equipment exposed to the contaminant, and of soil, water, and air having been exposed to the contaminant. Preferred metal oxides for the methods include MgO, CaO, TiO2, ZrO2, FeO, V2O3, V2O5, MN2O3, Fe2O3, NiO, CuO, Al2O3, ZnO, and mixtures thereof. Preferred coating metal oxides include oxides of metals selected from the group consisting of Ti, V, Fe, Cu, Ni, Co, Mn, Zn, and mixtures thereof. Preferred ...

Liquid feed flame spray modification of nanoparticles

Nano- and micron sized metal oxide and mixed metal oxide particles are injected into a high temperature region wherein the temperature is between about 400° C. and less than 2000° C., and collected as particles or as coatings wherein a particulate nature is substantially maintained. The particles are altered in at least one of phase, morphology, composition, and particle size distribution, and may achieve further changes in these characteristics by coinjection of metal oxide precursor in liquid form.

Method for manufacturing coloured blanks and dental moulded parts

Die Erfindung betrifft Zusammensetzungen auf ZrO2-Basis, sowie ein- und mehrfarbige Rohlinge aus Oxidkeramiken, und ein Verfahren zu deren Herstellung, bei dem a) Oxidkeramik-Pulver mit einer farbgebenden Substanz beschichtet, b) die beschichteten Pulver vorzugsweise klassiert und mindestens ein gefärbtes Pulver in eine Pressform gefüllt, c) das oder die gefärbten Pulver zu einem Formkörper gepresst und d) der verpresste Formkörper zu einem Rohling gesintert wird, sowie die Verwendung dieser Rohlinge zur Herstellung von dentalen Restaurationen.

PRODUCTION OF CERAMIC POWDER

PROBLEM TO BE SOLVED: To solve the problem that ceramic powder having high crystallinity must be fired at a considerably high temp. because of its low reactivity and increases cost when ceramic powder having a core-shell structure is obtd. using the ceramic powder having high crystallinity and the problem that ceramic electronic parts produced from ceramic powder having low crystallinity undergo deterioration in electrical and mechanical characteristics when ceramic powder having a core-shell structure is obtd. using the ceramic powder having low crystallinity. SOLUTION: Crystalline ceramic powder, together with water, is heated to dissolve the ceramic powder in the water while leaving the core part. The component of the ceramic powder dissolved in the water is deposited from the water as a deposit around the core part by slow cooling. An additive is added to the ceramic powder and they are mixed and fired at a high temp. The deposit and the additive are brought into solid phase reaction ...

Particulate zirconia coated with oxides

CERAMIC COMPOSITE POWDERS.

A manufacturing method for a ceramic composite powder comprises admixing an inorganic powder having cation- exchange properties with a solution containing one or more metal complex ions to form a suspension and cause ion exchange with the metal ions on the surface of the powder; decomposing the metal complex ion in the suspension to cause precipitation of metal hydroxides, metal oxides, or metal basic salts on the surface of said powder; and drying the powder on the surface of which is precipitated said metal hydroxides, metal oxides or metal basic salts. A ceramic-ceramic composite powder is produced by calcining the dried powder with the above precipitates to convert the precipitates into metal oxides. A metal-ceramic composite powder is manufactured by reducing the above dried or calcined precipitates on the surface of the powder to metal. In the composite powder, any arbitrary amount of metal oxides or metal is supported on the surface of the powder.

A METHOD OF PREPARING A CERAMIC COMPOSITE POWDER AND THE POWDER OBTAINED THEREBY

METHOD FOR PREPARING A COMPOSITE CERAMIC POWDER AND POWDER OBTAINED BY THE METHOD.

BARIUM TITANATE POWDER COATED WITH AN OXIDE LAYER, AND A PRODUCTION METHOD THEREFOR

The present invention relates to a barium titanate powder coated with an oxide layer and to a production method therefor, wherein the barium titanate powder consists of an auxiliary component oxide layer coated onto the surface of a barium titanate particle constituting the main component, and in which the thickness of the oxide layer constituting the auxiliary component is adjusted to be in a range of from 0.01 to 30 nm, in order to produce a starting material for electronic products which satisfy both the X7R characteristics stipulated in the EIAJ standards and the B characteristics stipulated in the JIS standards, which have good temperature stability capacitance and insulation resistance values, good relative dielectric constants, and the insulation resistance has a lengthy accelerated lifetime.

Reactive nanoparticles as destructive adsorbents for biological and chemical contamination

Compositions and methods for destroying biological agents such as toxins and bacteria are provided wherein the substance to be destroyed is contacted with finely divided metal oxide or hydroxide nanocrystals. In various embodiments, the metal oxide or metal hydroxide nanocrystals have reactive atoms stabilized on their surfaces, species adsorbed on their surfaces, or are coated with a second metal oxide. The desired metal oxide or metal hydroxide nanocrystals can be pressed into pellets for use when a powder is not feasible. Preferred metal oxides for the methods include MgO, SrO, BaO, CaO, TiO2, ZrO2, FeO, V2O3, V2O5, Mn2O3, Fe2O3, NiO, CuO, Al2O3, SiO2, ZnO, Ag2O, [Ce(NO3)3—Cu(NO3)2]TiO2, Mg(OH)2, Ca(OH)2, Al(OH)3, Sr(OH)2, Ba(OH)2, Fe(OH)3, Cu(OH)3, Ni(OH)2, Co(OH)2, Zn(OH)2, AgOH, and mixtures thereof.

Polycrystalline diamond

STABILISED METAL OXIDES

IMPROVED CERAMIC DIELECTRIC COMPOSITIONS AND METHOD FOR ENHANCING DIELECTRIC PROPERTIES

DISPERSIBLE, METAL OXIDE-COATED, BARIUM TITANATE MATERIALS

Barium titanate-based particles having a coating comprising an oxide, hydrous oxide, hydroxide or organic acid salt of a metal other than barium or titanium, wherein at least 90 percent of said particles have a particle size less than 0.9 micrometer when said particles are dispersed by high shear mixing, useful in the fabrication of thin, fine-grained dielectric layers for multilayer ceramic capacitors with high breakdown voltage.

ENHANCED BORON NITRIDE COMPOSITION AND COMPOSITIONS MADE THEREWITH

본 발명은 실레인, 실록세인, 카복실산 유도체 및 이들의 혼합물 중 1종 이상을 포함하는 코팅층으로 표면이 처리된 질화붕소 분말을 포함하는 질화붕소 조성물로서, 상기 코팅층이 질화붕소 표면의 10% 이상에 접착되어 있는 질화붕소 조성물을 제공한다. 질화붕소 분말 표면은 우선 하소 공정에 의해 처리되거나, 또는 최종 코팅층의 하나 이상의 작용기에 반응성인 하나 이상의 작용기를 함유하는 복수의 반응성 부위를 그의 표면에 갖도록 1종 이상의 무기 화합물로 코팅함으로써 처리된다. The present invention provides a boron nitride composition comprising boron nitride powder surface-treated with a coating layer comprising at least one of silane, siloxane, carboxylic acid derivative, and mixtures thereof, wherein the coating layer is formed on at least 10% of the boron nitride surface. Provided is a bonded boron nitride composition. The boron nitride powder surface is first treated by a calcination process or by coating with one or more inorganic compounds to have on its surface a plurality of reactive sites containing one or more functional groups reactive to one or more functional groups of the final coating layer.

PROCESS FOR PRODUCING ZINC OXIDE VARISTOR HAVING HIGH POTENTIAL GRADIENT AND HIGH NON-LINEARITY COEFFICIENT

METHOD OF COLOURING CARRIER MATERIALS

The present invention relates to a method of producing coloured carrier particles (substrates), which comprises a) dispersing the carrier particles in a solution of a colorant or latent pigment, adding the carrier particles to a solution of a colorant or latent pigment, or adding a latent pigment or a colorant to a dispersion of the carrier particles, b) precipitating the colorant or latent pigment onto the carrier particles, and c) in the case of a latent pigment, subsequently converting it to the pigment, and to the coloured substrates obtainable by such a method, and also to the use thereof. Using the methods according to the invention it is possible to obtain colorations and coloured substrates that have surprisingly good light-fastness properties.

FUEL ELECTRODE MATERIAL FOR SOLID OXIDE FUEL CELL, FUEL ELECTRODE USING SAME, FUEL-CELL CELL

Disclosed is a material for forming a fuel electrode for solid oxide fuel cells. This material enables to obtain a fuel electrode which has good gas permeability while being excellent in electrochemical reactivity, conductivity and durability of such characteristics. In addition, such a fuel electrode does not suffer from damage or destruction due to thermal stress between itself and another component. Also disclosed is a fuel electrode made of such a material. Specifically disclosed is a nickel-zirconia-ceria fuel electrode material for solid oxide fuel cells which is composed of a mixture of coarse ceria particles, fine zirconia particles and nickel oxide particles, wherein the coarse ceria particles are doped with at least one element selected from yttrium, samarium and gadolinium and the fine zirconium particles are stabilized with yttria and/or scandia. The average particle sizes of the above-mentioned particles satisfy the following relation: coarse ceria particles > nickel oxide ...

Finely, divided, spherical, two-layer solid particles

Finely divided, spherical, two-layer solid particles having a diameter of from 5 to 100 nm and consisting of (A) from 60 to 70% by weight of a core of spherical, rhombohedral alpha -Fe2O3 having a purity greater than 98% and (B) from 30 to 40% by weight of a shell of a basic metal hydroxide sulfate which has an alkali metal ion content of less than 500 ppm and is of the general formula MvMnwZnx(OH)y(SO4)z where M is Mg, Co, Ni, Cd, divalent Fe and/or divalent Cu, v is from O to 0.8, w is from 0.1 to 0.9, x is from 0.1 to 0.9, y is from 1.01 to 1.99, z is from 0.005 to 0.505, v++x 1 and 0.5 y+z=1, and a process for the production of finely divided, magnetic, cubic or hexagonal ferrite particles.

Process for producing thin film metal oxide coated substrates and products produced therefrom

A coating composition primarily comprising a disilane compound of the formula (A): wherein R1 is a monovalent hydrocarbon group, Y is a divalent fluorinated organo group, X is a hydrolyzable group, and m is 1, 2 or 3, or a (partial) hydrolyzate thereof is applied and cured to form a protective coat having excellent chemical resistance and antireflection.

Method for producing carbon active material coated with metal or metal oxide

Polycrystalline diamond

Core-shell ceramic particulate

A core-shell ceramic particulate 10 which comprises a core particulate structure 12 comprising a plurality of primary particulates 16 and a plurality of primary pores 18; and a shell 14 at least partially-enclosing the core particulate structure 12. Each of the primary particulates 16 comprises a plurality of secondary particulates 20 and a plurality of secondary pores 22; and the shell comprises a plurality of tertiary particulates 24 and a plurality of tertiary pores 23. A method of making a core-shell ceramic particulate 10 is provided. The method comprises the steps of providing a core particulate structure 12 comprising a plurality of primary particulates 16 and a plurality of primary pores 18 wherein each primary particulate comprises a plurality of secondary particulates 20 and a plurality of secondary pores; and disposing a shell comprising a plurality of tertiary particulates 24 and a plurality of tertiary pores 23 onto the core particulate structure 12. The particulates may be ...

FERRITE-CERAMIC COMPOSITE AND METHOD OF MANUFACTURING THE SAME

ABSTRACT OF THE DISCLOSURE A metal oxide-ceramic composite powder consisting of fine ceramic particles having a metal oxide coating firmly bonded to the surface thereof is molten at high temperature and then cooled to produce a material in the form of a solid solution in which the metal oxide component and the ceramic component are substantially homogeneously mixed together. Also, the metal oxide-ceramic composite powder is mixed with fine particles of a second ceramic and/or particles of a metal, and the mixture is baked to produce a sintered material.

COMPOSITE CERAMIC MATERIAL AND A PRODUCTION METHOD THEREFOR

The present invention relates to a composite ceramic material for fuel cells and to a production method therefor. The composite ceramic material for fuel cells comprises a wick structure in which perovskite type ceramic particles of small particle size surround the circumferences of lanthanum cobaltite particles of large particle size, and the lanthanum cobaltite is synthesized in the process for synthesizing the perovskite type ceramic particles, by also being added as a starting material. The composite ceramic material for fuel cells of the present invention improves the electrical connecting characteristics between the separator plates and the polar plates of fuel cells, and is both chemically and mechanically stable.

Bright pigment, and bright coating composition and automotive body coating each containing the same

The bright pigment of the present invention includes flaky particles and a metal oxide layer coating at least a part of the surface of each flaky particle. The bright pigment or the flaky particles of the present invention have a particle size distribution in which the particle size at 99% of the cumulative volume from the smaller particle size is 48 mum or less, and the maximum particle size is 62 mum or less. The flaky particles are made of a material having a refractive index in the range of 1.4 to 1.8. The flaky particles have a thickness distribution in which the frequency of the particles having a thickness in the range of 0.8 mum to 1.9 mum is 90% or more by volume, or the frequency of the particles having a thickness in the range of 0.01 mum to 0.35 mum is 90% or more by volume.

Dispersible, metal oxide-coated, barium titanate materials

REACTIVE NANOPARTICLES AS DESTRUCTIVE ADSORBENTS FOR BIOLOGICAL AND CHEMICAL CONTAMINATION

Compositions and method for destroying biological agents such as toxins are provided wherein the substance to be destroyed is contacted with finely divided metal oxide nanocrystals. In various embodiments, the metal oxide nanocrystals have reactive atoms stabilized on their surfaces, species adsorbed on their surfaces, or are coated with a second metal oxide. The desired metal oxide nanocrystals can be pressed into pellets for use when a powder is not feasible. The methods of the invention are safe for humans, equipment, and the environment, and provide for decontamination of warfare sites, of equipment exposed to the contaminant, and of soil, water, and air having been exposed to the contaminant. Preferred metal oxides for the methods include MgO, CaO, TiO2, ZrO2, FeO, V2O3, V2OS, MN2O3, Fe2O3, NiO, CuO, Al2O3, ZnO, and mixtures thereof. Preferred coating metal oxides include oxides of metals selected from the group consisting of Ti, V, Fe, Cu, Ni, Co, Mn, Zn, and mixtures thereof. Preferred reactive atoms include halogens and Group I metals, and preferred species include SO2, NO2, and ozone.

METHOD OF COLOURING CARRIER MATERIALS

The present invention relates to a method of producing coloured carrier particles (substrates), which comprises a) dispersing the carrier particles in a solution of a colorant or latent pigment, adding the carrier particles to a solution of a colorant or latent pigment, or adding a latent pigment or a colorant to a dispersion of the carrier particles, b) precipitating the colorant or latent pigment onto the carrier particles, and c) in the case of a latent pigment, subsequently converting it to the pigment, and to the colour ed substrates obtainable by such a method, and also to the use thereof. Using t he methods according to the invention it is possible to obtain colorations and coloured substrates that have surprisingly good light-fastness properties.</ SDOAB>

CONVERSION OF CARBONACEOUS FUELS INTO CARBON FREE ENERGY CARRIERS

A system for converting fuel is provided and includes a first reactor comprising a plurality of ceramic composite particles, the ceramic composite particles comprising at least one metal oxide disposed on a support, wherein the first reactor is configured to reduce the at least one metal oxide with a fuel to produce a reduced metal or a reduced metal oxide; a second reactor configured to oxidize at least a portion of the reduced metal or reduced metal oxide from the said first reactor to produce a metal oxide intermediate; a source of air; and a third reactor communicating with said source of air and configured to regenerate the at least one metal oxide from the remaining portion of the solids discharged from the said first reactor and the solids discharged from the said second reactor by oxidizing the metal oxide intermediate.

ANGLE-DEPENDENT INTERFERENCE PIGMENTS

Materias dispersìveis, revestidos por óxidos demetal de titanato de bário

Conversion of carbonaceous fuels into carbon free energy carriers

A system for converting fuel is provided and includes a first reactor comprising a plurality of ceramic composite particles, the ceramic composite particles comprising at least one metal oxide disposed on a support, wherein the first reactor is configured to reduce the at least one metal oxide with a fuel to produce a reduced metal or a reduced metal oxide; a second and reactor configured to oxidize at least a portion of the reduced metal or reduced metal oxide from the said first reactor to produce a metal oxide intermediate; a source of air; and a third reactor communicating with said source of air and configured to regenerate the at least one metal oxide from the remaining portion of the solids discharged from the said first reactor and the solids discharged from the said second reactor for by oxidizing the metal oxide intermediate.

Method of colouring carrier materials

The present invention relates to a method of producing coloured carrier particles (substrates), which comprises a) dispersing the carrier particles in a solution of a colorant or latent pigment, adding the carrier particles to a solution of a colorant or latent pigment, or adding a latent pigment or a colorant to a dispersion of the carrier particles, b) precipitating the colorant or latent pigment onto the carrier particles, and c) in the case of a latent pigment, subsequently converting it to the pigment, and to the coloured substrates obtainable by such a method, and also to the use thereof. Using the methods according to the invention it is possible to obtain colorations and coloured substrates that have surprisingly good light-fastness properties.

SMART PROPPANT PLATFORM TECHNOLOGY

A delivery vehicle is used in a smart proppant platform technology. The delivery vehicle includes a porous substrate and an active agent that interacts with at least one constituent in an operating environment of a target location in which the delivery vehicle is deployed. The active agent changes physical or chemical characteristics of the constituent to facilitate a beneficial effect. A non-polymeric encapsulating coating is maintained until the delivery vehicle reaches the target location, wherein the operating environment of the target location causes the encapsulating coating to dissolve and release the active agent into the operating environment of the target location to facilitate the beneficial effect. In one disclosed example, the proppant is designed to maintain the opening of a hydraulically induced fracture in a subterranean formation, while also allowing for the controlled delivery of active agents. It may be used to enhance the recovery of oils and gases.

CERAMIC COMPOSITE POWDERS.

An inorganic powder having a cation-exchange property is formed into a suspension with a metal-contg. soln. where metal ions are exchanged into its surface. A precipitant-forming material which releases an anion when subjected to heat or pressure is then added and heat or pressure applied so that the released anion forms metal hydroxide, salt or basic salt on the surface of the particles. The composite powder is heated to convert the metal cpd. into oxide, producing a ceramic-ceramic composite material. Opt., the metal oxide may be reduced to yield a ceramic-metal composite powder.

STABILISED METAL OXIDES

A composition suitable for use in the manufacture of ceramics comprises particulate zirconia the particles of which are coated with a hydrous oxide of yttrium and a hydrous oxide of manganese, iron, cobalt, nickel, copper or zinc. Preferably the particles also have an inner coating of titania, zirconia, hafnia or alumina. Ceramics prepared from the particulate zirconia of the invention are resistant to degradation by water at temperatures above 100 DEG C.

MAGNETIC NANOCOMPOSITE COMPOSITIONS

Superparamagnetic nanocomposites are provided. In an embodiment, a superparamagnetic nanocomposite comprises a superparamagnetic core comprising a first, soft superparamagnetic ferrite and a superparamagnetic shell comprising a second, soft superparamagnetic ferrite, the shell formed over the core, wherein the first and second soft superparamagnetic ferrites are different compounds and have different magnetocrystalline anisotropies. 1. A superparamagnetic nanocomposite comprising a superparamagnetic core comprising a first , soft superparamagnetic ferrite and a superparamagnetic shell comprising a second , soft superparamagnetic ferrite , the shell formed over the core , wherein the first and second soft superparamagnetic ferrites are different compounds and have different magnetocrystalline anisotropies.2. The superparamagnetic nanocomposite of claim 1 , wherein a sample of nanoparticles composed of the first claim 1 , soft superparamagnetic ferrite and having an average diameter of 12 nm provides a magnetization-field loop exhibiting no hysteresis at room temperature and a single-peaked zero-field cooling curve having a blocking temperature of less than room temperature.3. The superparamagnetic nanocomposite of claim 1 , wherein the first and second soft superparamagnetic ferrites are independently selected from FeOand soft superparamagnetic ferrites according to formula M′M″FeO claim 1 , wherein M′ and M″ are different and are independently selected from Mn claim 1 , Ni claim 1 , Mg claim 1 , and Zn and 0≤x≤1.4. The superparamagnetic nanocomposite of claim 1 , wherein the first and second soft superparamagnetic ferrites are independently selected from FeO claim 1 , MnFeO claim 1 , and ZnMFeO claim 1 , wherein 0.1 Подробнее

MAGNESIA, METHOD FOR MANUFACTURING SAME, HIGHLY THERMALLY CONDUCTIVE MAGNESIA COMPOSITION, AND MAGNESIA CERAMIC USING SAME

The present invention discloses magnesia and a method for manufacturing same, wherein the magnesia can be produced into granules of various shapes and sizes and can be improved in moisture resistance with the formation of a moisture resistant surface oxide layer by donor addition and then thermal treatment. The magnesia according to the present invention comprises a MgO granule; and a surface oxide layer formed on a surface of the MgO granule and a composition of the surface oxide layer is different from a composition of an inside of the MgO granule. 17.-. (canceled)8. Magnesia (MgO) , comprising:a MgO granule; anda surface oxide layer formed on a surface of the MgO granule,wherein a composition of the surface oxide layer is different from a composition of an inside of the MgO granule.9. The magnesia (MgO) of claim 8 , wherein a donor at an inside of the surface oxide layer comprises at least one of TiO claim 8 , NbO claim 8 , ZrO claim 8 , GaO claim 8 , MnO claim 8 , BO claim 8 , FeO claim 8 , SnO claim 8 , MnO claim 8 , SiO claim 8 , VO claim 8 , TaO claim 8 , SbO claim 8 , YO claim 8 , EuO claim 8 , or AlO.10. (canceled)11. The magnesia (MgO) of claim 8 ,{'sub': 2', '2', '5, 'claim-text': {'br': None, 'i': x', '+y, 'sub': 2', '2', '5, 'MgO+wt. % of TiOwt. % of NbO≤100 wt. % \u2003\u2003Equation (6)'}, 'wherein the magnesia comprises TiOand NbOand satisfies the following Equation (6)(In Equation (6), x and y are 0 Подробнее

PIEZOELECTRIC COMPOSITION AND PIEZOELECTRIC DEVICE

A piezoelectric composition comprises a plurality of crystal particles, wherein the piezoelectric composition includes bismuth, iron, barium, titanium, and oxygen; the crystal particles include a core and a shell covering the core; the average value of the contents of bismuth in the cores is expressed as C% by mass, the average value of the contents of bismuth in the shells is expressed as C% by mass, and the Cis lower than the C; and the number of all the particles comprised in the piezoelectric composition is expressed as N, the number of the crystal particles including the core and the shell is expressed as n, and n/N is 0.10 to 1.00. 1. A piezoelectric composition comprising a plurality of crystal particles , whereinthe piezoelectric composition includes bismuth, iron, barium, titanium, and oxygen;the crystal particle includes a core and a shell covering the core;{'sub': 'CORE', 'an average value of contents of bismuth in the cores is expressed as C% by mass,'}{'sub': 'SHELL', 'an average value of contents of bismuth in the shells is expressed as C% by mass, and'}{'sub': CORE', 'SHELL, 'the Cis lower than the C; and'}a number of all particles comprised in the piezoelectric composition is expressed as N,a number of the crystal particles including the core and the shell is expressed as n, andn/N is 0.10 to 1.00.2. The piezoelectric composition according to wherein{'sub': CORE', 'SHELL, 'the C/Cis 0.10 to 0.95.'}3. The piezoelectric composition according to claim 1 , whereinthe piezoelectric composition is a sintered body.4. A piezoelectric device comprising the piezoelectric composition according to .5. The piezoelectric device according to claim 4 , wherein{'sub': '33', 'a piezoelectric constant dof the piezoelectric composition to which an electric field of 0.1 to 2.0 kV/mm is applied is 200 pC/N or more.'} The present invention relates to a piezoelectric composition and a piezoelectric device.A perovskite-type metal oxide is known as a common piezoelectric ...

FERRITE POWDER FOR BONDED MAGNETS, METHOD FOR PRODUCING THE SAME AND FERRITE BONDED MAGNET

A ferrite powder for bonded magnets capable of producing a ferrite bonded magnet having high BH, and excellent in fluidity when converted to a compound, and having a high p-iHc value, and a method for producing the same, and a ferrite bonded magnet using the ferrite powder for bonded magnets, wherein an average particle size of particles obtained by a dry laser diffraction measurement is 5 μm or less; a specific surface area is 1.90 m/g or more and less than 2.80 m/g; a compression density is 3.50 g/cmor more and less than 3.78 g/cm, and a compressed molding has a coercive force of 2300 Oe or more and less than 2800 Oe. 1. A ferrite powder for bonded magnets , whereinan average particle size of particles obtained by a dry laser diffraction measurement is 5 μm or less;{'sup': 2', '2', '3', '3, 'a specific surface area is 1.90 m/g or more and less than 2.80 m/g; a compression density is 3.50 g/cmor more and less than 3.78 g/cm, and'}a compressed molding has a coercive force of 2300 Oe or more and less than 2800 Oe.2. The ferrite powder for bonded magnets according to claim 1 , wherein a particle size distribution curve has two mountains claim 1 , and out of these two mountains claim 1 , a particle size of a smaller particle size peak is 1.2 μm or less.3. The ferrite powder for bonded magnets according to claim 1 , wherein a cumulative distribution value at a particle size of 0.62 μm in a cumulative particle size distribution curve claim 1 , is 13 volume % or more.4. The ferrite powder for bonded magnets according to claim 1 , wherein a cumulative distribution value at a particle size of 0.74 μm in a cumulative particle size distribution curve claim 1 , is 17 volume % or more.5. The ferrite powder for bonded magnets according to claim 1 , wherein a frequency distribution value at a particle size of 0.28 μm in a frequency distribution curve claim 1 , is 6.0 or more.6. The ferrite powder for bonded magnets according to claim 1 , wherein a frequency distribution value at ...

Method for Manufacturing Composite Ceramic Material

Provided is a method of making a composite ceramic material for a fuel cell. The composite ceramic material for the fuel cell forms a cored structure where perovskite ceramic particles having a small particle diameter surround lanthanum cobaltite particles having a large particle diameter. Lanthanum cobaltite is added as a starting material in a process of synthesizing the perovskite ceramic particles. The composite ceramic material for the fuel cell made according to this method improves an electric connection characteristic between a separation plate and a polar plate of the fuel cell, and is chemically and mechanically stable.

SURFACE EFFECT POLYMER DERIVED CERAMICS, METHODS, MATERIALS AND USES

A polysilocarb effect pigments, uncoated and coated, that exhibit among other things optical properties such as interference, shine, shimmer and sparkle. Pastes and coating including these polysilocarb effect pigments. Polysilocarb pigments having magnetite and exhibiting magnetic properties. 1. A polysicocarb ceramic effects pigment , the pigment comprising:a. an effect layer, a polysilocarb derived ceramic base and an optical interface between the effect layer and the polysilocarb derived ceramic base;b. the effect layer defining a thickness, a reflective effect, and a refractive effect, wherein the reflective effect and refractive effect are different;c. the polysilocarb derived ceramic base consisting essentially of carbon, oxygen and silicon;d. the polysicocarb derived ceramic base defining a thickness, an absorption coefficient, and a percentage light absorption;e. wherein the refractive effect interacts across the optical interface with the polysilocarb base to define a secondary reflective effect.2. The pigment of claim 1 , wherein the secondary reflective effect is predetermined and controlled based in part upon the carbon content of the base.3. The pigment of claim 1 , wherein the absorption coefficient of the base is from about 1 claim 1 ,000 to about 20 claim 1 ,000 1/cm.4. (canceled)5. The pigment of claim 1 , wherein the thickness of the base is from about 0.2 μm to about 2 μm.6. The pigment of claim 1 , wherein the thickness of the base is from about 0.5 μm to about 2.5 μm.7. (canceled)8. The pigment of claim 1 , wherein the base has a percentage light absorption from about 40% to about 100%.9. (canceled)10. The pigment of claim 1 , wherein the base has a percentage light absorption from about 60% to about 80%.11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. (canceled)19. (canceled)20. The pigment of claim 1 , wherein the effect layer is integral with the base.21. The pigment of claim 1 , wherein ...

Halloysite powder

Provided is halloysite powder having a small b value. The halloysite powder is powder including a granule in which halloysite including halloysite nanotubes is aggregated, the granule has a first pore deriving from a tube hole of the halloysite nanotubes and a second pore different from the first pore, and the Fe2O3 content is not more than 2.00 mass %.

Carbonaceous materials coated with a metal or metal oxide, a preparation method thereof, and a composite electrode and lithium secondary battery comprising the same

A carbon anode active material for lithium secondary battery comprising a cluster or thin film layer of a metal or metal oxide coated onto the surface of the carbon active material, a preparation method thereof, and a metal-carbon hybrid electrode and a lithium secondary battery comprising the same. The carbon active material is prepared through a gas suspension spray coating method. An electrode comprising the carbon active material according to the present invention shows excellent conductivity, high rate charge/discharge characteristics, cycle life characteristics and electrode capacity close to theoretical value.

Carbonaceous materials coated with a metal or metal oxide, a preparation method thereof, and a composite electrode and lithium secondary battery comprising the same

A carbon anode active material for lithium secondary battery comprising a cluster or thin film layer of a metal or metal oxide coated onto the surface of the carbon active material, a preparation method thereof, and a metal-carbon hybrid electrode and a lithium secondary battery comprising the same. The carbon active material is prepared through a gas suspension spray coating method. An electrode comprising the carbon active material according to the present invention shows excellent conductivity, high rate charge/discharge characteristics, cycle life characteristics and electrode capacity close to theoretical value.

Metal-coated carbon, preparation method thereof, and composite electrode and lithium secondary batteries comprising the same

본 발명은 탄소 활물질의 표면에 금속 또는 금속 산화물의 클러스터 또는 박막 층이 형성된 형태의 리튬이차전지용 음극 활물질, 이의 제조방법, 및 이를 포함하는 금속-탄소 하이브리드 전극 및 리튬이차전지에 관한 것이다. 본 발명의 탄소계 음극 활물질은 기체 유동층 분사 코팅법(Gas Suspension Spray Coating)에 의하여 제조되며, 본 발명에 따라 제조된 신소재 탄소 활물질을 포함하는 전극은 전도성, 고율 충방전 특성 및 싸이클 수명 특성이 우수하고, 이론 용량에 가까운 전극 용량을 나타낸다. The present invention relates to a negative electrode active material for a lithium secondary battery, a method of manufacturing the same, and a metal-carbon hybrid electrode and a lithium secondary battery including a metal or metal oxide cluster or a thin film layer formed on a surface of a carbon active material. The carbon-based negative electrode active material of the present invention is prepared by Gas Suspension Spray Coating, and the electrode including the new material carbon active material prepared according to the present invention has excellent conductivity, high rate charge / discharge characteristics, and cycle life characteristics. The electrode capacity close to the theoretical capacity is shown.

钛酸钡分散液

本发明提供了一种钛酸钡基颗粒在非水介质中的料浆,分散液或浆料及其生产方法,所说颗粒具有包括除钡或钛以外的其它金属的金属氧化物,金属含水氧化物,金属氢氧化物,或有机酸盐的涂层,当通过高剪切搅拌对涂覆后的颗粒进行分散时,至少90%所说颗粒的粒径小于0.9微米。

Anode comprising surface treated anode active material and lithium battery using the same

표면 처리된 음극 활물질을 포함하는 음극 및 이를 채용한 리튬 전지가 제공된다. 상기 음극은 집전체; 및 상기 집전체 상에 형성되며, 음극 활물질, 도전제 및 바인더를 포함하는 음극 활물질층;을 구비하는 음극으로서, 상기 음극 활물질이 리튬 이온의 삽입 및 탈리가 가능한 리튬 산화물로 코팅된 Li 4 Ti 5 O 12 을 포함한다. 이와 같이 음극 활물질의 표면을 리튬 산화물로 코팅함으로써 용량, 고율특성 및 초기 효율이 개선된 표면 처리된 음극 활물질을 포함하는 음극 및 이를 채용한 리튬 전지에 관한 것이다. A negative electrode including a surface-treated negative electrode active material and a lithium battery employing the negative electrode are provided. The negative electrode comprising: a current collector; And a negative electrode active material layer formed on the current collector, the negative electrode active material layer including a negative electrode active material, a conductive agent and a binder, wherein the negative electrode active material is Li 4 Ti 5 coated with lithium oxide capable of intercalating and deintercalating lithium ions O 12 . The present invention relates to a negative electrode comprising a surface-treated negative electrode active material having improved capacity, high-rate characteristics and initial efficiency by coating the surface of the negative electrode active material with lithium oxide, and a lithium battery employing the same.

Hard core soft shell abrasive compound and preparation method thereof and application

본 발명은 입자 직경이 0.1~1μm인 경질 연마재 코어와 두께가 5~100nm인 연질 산화물 셀을 구비하고, 상기 연질 산화물 셀의 산화물 결정립의 크기는 5~20nm이며, 그 제조 방법은 산화물의 무기염 전구체의 수용액과 경질 연마재를 원료로, 분산, 항온 회류 가수분해, 고액 분리, 세척 및 건조를 거쳐 제조되는 하드 코어 소프트 셀 복합 연마재를 공개하였다. 본 발명의 하드 코어 소프트 셀 구조는 사파이어 기판 초정밀 가공 과정에서 가공 효율과 표면 질량을 향상시킬 수 있다. The present invention is provided with a hard abrasive core having a particle diameter of 0.1 to 1 μm and a soft oxide cell having a thickness of 5 to 100 nm, and the size of oxide crystal grains of the soft oxide cell is 5 to 20 nm, and the manufacturing method is an inorganic salt of the oxide A hard-core soft-cell composite abrasive prepared by using an aqueous solution of a precursor and a hard abrasive as raw materials, dispersion, constant temperature flow hydrolysis, solid-liquid separation, washing and drying was disclosed. The hard-core soft cell structure of the present invention can improve processing efficiency and surface mass in the process of ultra-precision processing of sapphire substrates.

Manufacturing method of composite abrasive for hardcore soft shell

Surface effect polymer derived ceramics, methods, materials and uses

A polysilocarb effect pigments, uncoated and coated, that exhibit among other things optical properties such as interference, shine, shimmer and sparkle. Pastes and coating including these polysilocarb effect pigments. Polysilocarb pigments having magnetite and exhibiting magnetic properties.

Ferrite powder for bonded magnet, production method therefor, and ferrite bonded magnet

콤파운드중의 F. C. 값을 높여도 유동성이 뛰어나고, BH max 가 높은 페라이트계 본드 자석을 제조할 수 있고, 그 용도에 적합한 p-iHc의 값을 갖는 본드 자석용 페라이트 분말과 이의 제조방법, 및 상기 본드 자석용 페라이트 분말을 사용한 페라이트계 본드 자석을 제공한다. 건식 레이저 회절식 측정에 의한 평균 입경이 5㎛ 이하이며, 비표면적은 1.90㎡/g 이상 2.80㎡/g 미만이며, 압축 밀도가 3.50g/㎤ 이상 3.78g/㎤ 미만이며, 압분체의 보자력은 2300 Oe 이상 2800 Oe 미만인 본드 자석용 페라이트 분말을 제공한다. Even if the FC value in the compound is increased, ferrite-based bonded magnets having excellent fluidity and high BH max can be produced, and ferrite powders for bond magnets having a value of p-iHc suitable for the purpose, a method for manufacturing the same, and the above bonds Provided are ferrite-based bond magnets using ferrite powder for magnets. The average particle diameter by dry laser diffraction measurement is 5 µm or less, the specific surface area is 1.90 m 2 / g or more and less than 2.80 m 2 / g, the compressive density is 3.50 g / cm 3 or more and less than 3.78 g / cm 3, and the coercive force of the green compact is Provided are ferrite powders for bonded magnets that are greater than or equal to 2300 Oe and less than or equal to 2800 Oe.

Photoluminescent pigment, and photoluminescent coating composition and automotive outer panel each comprising the same

本发明的光亮性颜料含有薄片状粒子、和被覆所述薄片状粒子的表面的至少一部分的金属氧化物层。本发明的光亮性颜料或所述薄片状粒子在粒度分布中，自粒径小的一侧开始的体积累积量相当于99％的粒径为48μm以下，且最大粒径为62μm以下。所述薄片状粒子含有具有1.4～1.8的折射率的材料。进而，所述薄片状粒子在厚度分布中，厚度0.8μm～1.9μm的范围的频度按体积为90％以上，或厚度0.01μm～0.35μm的范围的频度按体积为90％以上。

The anode of solid oxide fuel cell with networking structure and the preparing method of it

본 발명은 상호침투형 복합구조를 가지는 고체산화물 연료전지(SOFC)의 연료극 및 이의 제조방법에 관한 것으로서, 더욱 상세하게는 세라믹 분말 입자 주위에 니켈 분말이 침착된 코아-쉘 구조로 된 복합분말을 이용하여 제조되어 그 구성상인 세라믹 결정립, 니켈의 결정립 및 기공이 균일한 크기를 가지고, 상기 구성상 상호간의 연속적인 네트워크 형태로 구성된 상호침투형 복합구조를 가짐으로써, 장기 안정성, 열 싸이클 안정성, 산화환원 안정성 및 기계적 물성이 현저히 향상된, 상호침투형 복합구조를 가지는 고체산화물 연료전지의 연료극 및 이의 제조방법에 관한 것이다. The present invention relates to an anode of a solid oxide fuel cell (SOFC) having an interpenetrating composite structure and a method of manufacturing the same. More specifically, the present invention relates to a composite powder having a core-shell structure in which nickel powder is deposited around ceramic powder particles. It is manufactured by using the same type of ceramic grains, nickel crystal grains and pores with uniform size and interpenetrating composite structure composed of a continuous network form in the composition, so that long-term stability, thermal cycle stability, oxidation The present invention relates to a fuel electrode of a solid oxide fuel cell having an interpenetrating composite structure, which has remarkably improved reduction stability and mechanical properties, and a method of manufacturing the same. 연료극, 상호침투형 복합구조, 안정성, 기계적 물성 Anode, interpenetrating composite structure, stability, mechanical properties

Ferrite permanent magnet material with core-shell structure and preparation method thereof

本发明涉及铁氧体材料领域，公开了一种具有核壳结构的铁氧体永磁材料及其制备方法，所述铁氧体永磁材料由核成分和壳成分混合后经加磁、成型、烧结而得；所述核成分中各元素质量含量为Sr 1‑x La x Fe 12‑y Co y O 19 ，其中x=0‑0.08，y=0‑0.05；所述壳成分中各元素质量含量为Sr 1‑w‑ v La w Ca v Fe 12‑z Co z O 19 ，其中w=0.2‑0.45，v=0.2‑0.45，z=0.15‑0.35；所得铁氧体永磁材料的晶粒呈核壳结构，La元素与Co元素在晶粒中的含量由内向外呈不均匀梯度递增。本发明可使铁氧体永磁材料在降低La‑Co元素使用量的情况下，仍然能够保持较高的磁性能。

Dispersible, metal oxide-coated, barium titanate materials

Barium titanate-based particles having a coating comprising an oxide, hydrous oxide, hydroxide or organic acid salt of a metal other than barium or titanium, wherein at least 90 percent of said particles have a particle size less than 0.9 micrometer when said particles are dispersed by high shear mixing, useful in the fabrication of thin, fine-grained dielectric layers for multilayer ceramic capacitors with high breakdown voltage.

Conversion of carbonaceous fuels into carbon free energy carriers

A system for converting fuel is provided and includes a first reactor comprising a plurality of ceramic composite particles, the ceramic composite particles comprising at least one metal oxide disposed on a support, wherein the first reactor is configured to reduce the at least one metal oxide with a fuel to produce a reduced metal or a reduced metal oxide; a second reactor configured to oxidize at least a portion of the reduced metal or reduced metal oxide from the said first reactor to produce a metal oxide intermediate; a source of air; and a third reactor communicating with said source of air and configured to regenerate the at least one metal oxide from the remaining portion of the solids discharged from the said first reactor and the solids discharged from the said second reactor by oxidizing the metal oxide intermediate.

Metal oxide hydrogels and hydrosols, their preparation and use

A process for preparing a hydrosol of one or more metal oxides, e.g. titanium dioxide, comprising preparing a metal alkoxide solution in a water-miscible organic solvent, e.g. an alcohol; providing an aqueous solvent; mixing the metal alkoxide solution with the aqueous solvent in a volume or weight proportion to form a single-phase aqueous sol colloid (hydrosol) of hydrated metal oxide in absence of a non-ionic block polymer surfactant. Also disclosed is a corresponding hydrogel; water- insoluble particles encapsulated in hydrated metal oxide and a process for their encapsulation; uses of the encapsulation products.

Metal oxide hydrogels and hydrosols, their preparation and use

A process for preparing a hydrosol of one or more metal oxides, e.g. titanium dioxide, comprising preparing a metal alkoxide solution in a water-miscible organic solvent, e.g. an alcohol; providing an aqueous solvent; mixing the metal alkoxide solution with the aqueous solvent in a volume or weight proportion to form a single-phase aqueous sol colloid (hydrosol) of hydrated metal oxide in absence of a non-ionic block polymer surfactant. Also disclosed is a corresponding hydrogel; water-insoluble particles encapsulated in hydrated metal oxide and a process for their encapsulation; uses of the encapsulation products.

Metal oxide hydrogels and hydrosols, their preparation and use

A process for preparing a hydrosol of one or more metal oxides, e.g. titanium dioxide, comprising preparing a metal alkoxide solution in a water-miscible organic solvent, e.g. an alcohol; providing an aqueous solvent; mixing the metal alkoxide solution with the aqueous solvent in a volume or weight proportion to form a single-phase aqueous sol colloid (hydrosol) of hydrated metal oxide in absence of a non-ionic block polymer surfactant. Also disclosed is a corresponding hydrogel; water- insoluble particles encapsulated in hydrated metal oxide and a process for their encapsulation; uses of the encapsulation products.

Metal oxide hydrogels and hydrosols, their preparation and use

Method of dispersion of nanoparticles

FIELD: nanotechnology. SUBSTANCE: invention relates to a method of dispersion of synthetic or natural nanoparticles and nanocomposite materials, the method for production of hierarchical structures and their use in various industries, including ceramic materials, coatings, polymers, construction, paints, catalysts, pharmaceutical products and powdered materials in general. The method comprises mixing the nanoparticles with a size less than 100 nm in a dry environment in a low speed vibratory mixer. EFFECT: reduction of particle agglomeration. 15 cl, 18 dwg, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 520 477 C2 (51) МПК B01F 3/18 (2006.01) B82B 3/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011106377/05, 21.07.2009 (24) Дата начала отсчета срока действия патента: 21.07.2009 (43) Дата публикации заявки: 27.08.2012 Бюл. № 24 (45) Опубликовано: 27.06.2014 Бюл. № 18 2302371 C1, 10.07.2007. WO 2007/112805 A2, 11.10.2007. US 2003139288 A1, 24.07.2003. EP 0123041 A2, 31.10.1984 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 22.02.2011 (73) Патентообладатель(и): КОНСЕХО СУПЕРИОР ДЕ ИНВЕСТИГАСИОНЕС СЬЕНТИФИКАС (КСИС) (ES) (86) Заявка PCT: 2 5 2 0 4 7 7 (56) Список документов, цитированных в отчете о поиске: US 2003/0211416 A1, 13.11.2003. RU R U Приоритет(ы): (22) Дата подачи заявки: 21.07.2009 (72) Автор(ы): ФЕРНАНДЕС ЛОСАНО Хосе Франсиско (ES), ЛОРИТЕ ВИЛЬАЛЬБА Исраэль (ES), РУБИО МАРКОС Фернандо (ES), РОМЕРО ФАНЕГО Хуан Хосе (ES), ГАРСИЯ ГАРСИЯ-ТУНЬОН Мигель Анхель (ES), КЕСАДА МИЧЕЛЕНА Адриан (ES), МАРТИН ГОНСАЛЕС Мария Соледад (ES), КОСТА КРАМЕР Хосе Луис (ES) 2 5 2 0 4 7 7 R U (87) Публикация заявки PCT: WO 2010/010220 (28.01.2010) Адрес для переписки: 119019, Москва, Гоголевский бульвар, д. 11, 3й этаж, "Гоулингз Интернэшнл Инк." (54) СПОСОБ ДИСПЕРГИРОВАНИЯ НАНОЧАСТИЦ (57) Реферат: Изобретение относится к способу лекарственные средства и порошковые материалы диспергирования ...

New flip-flop interference pigments

Fireproof gypsum board coating

본 발명은 내화 재료로서 고령토를 포함하는 방화 석고 보드 조성물을 제공한다.

Halloysite powder

ｂ値が小さいハロイサイト粉末を提供する。上記ハロイサイト粉末は、ハロイサイトナノチューブを含むハロイサイトが集合してなる顆粒を含む粉末であって、上記顆粒が、上記ハロイサイトナノチューブのチューブ孔に由来する第１の細孔と、上記第１の細孔とは異なる第２の細孔とを有し、Ｆｅ２Ｏ３の含有量が、２．００質量％以下である。

Manufacturing process of an environmental barrier

Procédé de fabrication (100) d’une barrière environnementale comprenant les étapes d’enrobage (102) d’une poudre de silicate de terre rare avec un précurseur d’un agent de densification pour former une poudre de silicate de terre rare enrobée avec le précurseur de l’agent de densification, de projection thermique (104) de la poudre enrobée sur un substrat pour obtenir une barrière environnementale au moins partiellement amorphe sur le substrat et de traitement thermique (106) de cristallisation et de densification de la barrière environnementale. Figure pour l’abrégé : Fig. 5 A method of making (100) an environmental barrier comprising the steps of coating (102) a rare earth silicate powder with a precursor of a densifying agent to form a rare earth silicate powder coated with the precursor of the densifying agent, thermal spraying (104) of the coated powder onto a substrate to obtain an at least partially amorphous environmental barrier on the substrate and thermal treatment (106) of crystallization and densification of the environmental barrier. Figure for abstract: Fig. 5

Barium titanate dispersions

"DISPERSõES DE TITANATO DE BáRIO". A invenção provê pastas, dispersões ou pastas fluidas de partículas à base de titanato de bário em um meio não-aquoso e processos para sua produção. As partículas possuem um revestimento compreendendo um óxido metálico, óxido hídrico metálico, hidróxido metálico ou sal de ácido orgânico de um metal que não bário ou titânio. Pelo menos 90% das partículas possuem um tamanho de partícula inferior a 0,9 micrómetro, quando as partículas revestidas são dispersas por mistura de cisalhamento alto.

Patent JPH0345014B2

Barium titanate dispersions

The invention provides slurries, dispersions, or slips of barium titanate-based particles in a non-aqueous medium and methods of their production. The particles have a coating comprising a metal oxide, metal hydrous oxide, metal hydroxide or organic acid salt of a metal other than barium or titanium. At least 90 percent of the particles have a particle size less than 0.9 micrometer when the coated particles are dispersed by high shear mixing.

Fireproof gypsum board coating

본 발명은 내화 재료로서 고령토를 포함하는 방화 석고 보드 조성물을 제공한다. The present invention provides a fire retardant gypsum board composition comprising kaolin as a refractory material.

Liquid feed flame spray modification of nanoparticles

Nano- and micron sized metal oxide and mixed metal oxide particles are injected into a high temperature region wherein the temperature is between about 400°C and less than 2000°C, and collected as particles or as coatings wherein a particulate nature is substantially maintained. The particles are altered in at least one of phase, morphology, composition, and particle size distribution, and may achieve further changes in these characteristics by coinjection of metal oxide precursor in liquid form.

Method of colouring carrier materials

本发明涉及生产着色载体颗粒(基材)的方法，该方法包括：a)将载体颗粒分散于着色剂或潜颜料的溶液中，将载体颗粒添加到着色剂或潜颜料的溶液中，或将潜颜料或着色剂加入到载体颗粒的分散体中，b)将着色剂或潜颜料沉淀到载体颗粒上，和c)在潜颜料的情况下，随后将它转化为颜料。本发明还涉及通过这种方法获得的着色基材及其用途。使用根据本发明的方法，可以获得具有令人惊奇的良好耐光性的着色和着色基材。

MgO AND METHOD FOR MANUFACTURING THE SAME, AND HIGH THERMAL CONDUCTIVE MgO COMPOSITION, AND MgO CERAMICS USING THE SAME

본 발명은 분말로부터 다양한 형상과 크기의 그래뉼을 제조할 수 있으며, 도너의 첨가에 의해 열처리 후 내흡습성이 있는 표면 산화물층이 형성됨에 따라, MgO의 낮은 내흡습성이 개선되는 마그네시아 및 그 제조 방법에 대하여 개시한다. 그리고, 본 발명은 MgO 에 도너를 첨가하여 소결온도를 낮추고, 열확산 계수를 향상시킬 수 있는 고열전도성 마그네시아 조성물 및 이를 이용한 마그네시아 세라믹스에 대하여 개시한다. 본 발명에 따른 마그네시아의 제조 방법은 (a) MgO 분말에 도너와 유기 용매를 첨가하여 혼합물을 형성하는 단계; (b) 상기 혼합물을 건조시키는 단계; (c) 상기 건조된 혼합물로부터 도너가 첨가된 MgO 그래뉼을 형성하는 단계; 및 (d) 상기 도너가 첨가된 MgO 그래뉼을 열처리하는 단계;를 포함하고, 상기 도너가 첨가된 MgO 그래뉼을 열처리하여 상기 MgO 그래뉼 표면에 MgO 그래뉼 내부와 조성이 다른 표면 산화물층을 형성하는 것을 특징으로 한다. The present invention can produce granules of various shapes and sizes from powder, and as a surface oxide layer having moisture absorption resistance is formed after heat treatment by the addition of a donor, the low hygroscopicity of MgO is improved, and magnesia and a manufacturing method thereof It will be disclosed. In addition, the present invention discloses a high thermal conductivity magnesia composition capable of lowering a sintering temperature and improving a thermal diffusion coefficient by adding a donor to MgO, and a magnesia ceramics using the same. The method for producing magnesia according to the present invention comprises the steps of: (a) forming a mixture by adding a donor and an organic solvent to MgO powder; (b) drying the mixture; (c) forming donor-added MgO granules from the dried mixture; And (d) heat-treating the MgO granules to which the donor is added; Including, heat-treating the MgO granules to which the donors are added to form a surface oxide layer having a composition different from the inside of the MgO granules on the surface of the MgO granules. To do.

Reactive nanoparticles as destructive adsorbents for biological and chemical contamination

Compositions and methods for destroying biological agents and toxins such as Aflatoxins, Botulinum toxins, and Clostridium perfrigens toxins are provided wherein the substance to be destroyed is contacted with a finely divided metal oxide nanocrystals. In various embodiments, the metal oxide nanocrystals have reactive atoms stabilized on their surfaces, species adsorbed on their surfaces, or are coated with a second metal oxide. The desired metal oxide nanocrystals can be pressed into pellets for use when a powder is not feasible. The methods of the invention are safe for humans, equipment, and the environment, and provide for decontamination of warfare sites, of equipment exposed to the contaminant, and of soil, water and air having been exposed to the contaminant. Preferred metal oxides for the methods include MgO, CaO, TiO 2 , ZrO 2 , FeO, V 2 O 5 , Mn 2 O 3 , Fe 2 O 3 , NiO, CuO, Al 2 O 3 , ZnO and mixtures thereof. Preferred reactive atoms stabilized on the surfaces of the metal oxide nanocrystals include halogens and Group I metals, and preferred species stabilized on the surfaces of the metal oxide nanocrystals include SO 2 , NO 2 and ozone.

Reactive nanoparticles as destructive adsorbents for biological and chemical contamination

Compositions and methods for destroying biological agents and toxins such as Aflatoxins, Botulinum toxins, and Clostridium perfrigens toxins are provided wherein the substance to be destroyed is contacted with a finely divided metal oxide nanocrystals. In various embodiments, the metal oxide nanocrystals have reactive atoms stabilized on their surfaces, species adsorbed on their surfaces, or are coated with a second metal oxide. The desired metal oxide nanocrystals can be pressed into pellets for use when a powder is not feasible. The methods of the invention are safe for humans, equipment, and the environment, and provide for decontamination of warfare sites, of equipment exposed to the contaminant, and of soil, water and air having been exposed to the contaminant. Preferred metal oxides for the methods include MgO, CaO, TiO2, ZrO2, FeO, V2O5, Mn2O3, Fe2O3, NiO, CuO, Al2O3, ZnO and mixtures thereof. Preferred reactive atoms stabilized on the surfaces of the metal oxide nanocrystals include halogens and Group I metals, and preferred species stabilized on the surfaces of the metal oxide nanocrystals include SO2, NO2 and ozone.

Synthesis of Magnetite Nanoparticles and the Process of Forming Fe-Based Nanomaterials

철 염을 유기 용매 중에서 알코올, 카르복실산 및 아민과 혼합하고 혼합물을 200 내지 360℃로 가열하는 자철광 나노입자 재료의 제조 방법 및 구조를 기술한다. 입자의 크기는 철 염 대 산/아민 비를 변화시키거나 또는 작은 나노입자를 추가의 철 산화물로 코팅함으로써 조절할 수 있다. 본 발명을 이용하면, 크기가 2 nm 내지 20 nm 범위이고 크기 분포가 좁은 자철광 나노입자가 수득된다. 본 발명은 MFe 2 O 4 (M = Co, Ni, Cu, Zn, Cr, Ti, Ba, Mg) 나노재료를 포함하는 다른 철 산화물 기재 나노입자 재료, 및 철 산화물로 코팅된 나노입자 재료로 용이하게 확장될 수 있다. 본 발명은 또한 반응 혼합물 중의 알코올을 티올로 교체함으로써 철 황화물 기재 나노입자 재료를 합성할 수 있다. 자철광 나노입자는 γ-Fe 2 O 3 또는 α-Fe 2 O 3 으로 산화되거나 또는 bcc-Fe 나노입자로 환원될 수 있으며, 철 산화물 기재 재료는 CoFe, NiFe와 같은 2원 철 기재 금속 나노입자 및 FeCoSm x 나노입자의 제조에 사용될 수 있다. Described are methods and structures for the preparation of magnetite nanoparticle materials in which an iron salt is mixed with alcohols, carboxylic acids and amines in an organic solvent and the mixture is heated to 200 to 360 ° C. The size of the particles can be controlled by varying the iron salt to acid / amine ratio or by coating small nanoparticles with additional iron oxide. Using the present invention, magnetite nanoparticles having a size ranging from 2 nm to 20 nm and a narrow size distribution are obtained. The present invention is readily applicable to other iron oxide based nanoparticle materials including MFe 2 O 4 (M = Co, Ni, Cu, Zn, Cr, Ti, Ba, Mg) nanomaterials, and nanoparticle materials coated with iron oxides. Can be extended. The present invention can also synthesize iron sulfide based nanoparticle materials by replacing alcohols in the reaction mixture with thiols. Magnetite nanoparticles can be oxidized to γ-Fe 2 O 3 or α-Fe 2 O 3 or reduced to bcc-Fe nanoparticles, and the iron oxide based material can be a binary iron based metal nanoparticles such as CoFe, NiFe and It can be used to prepare FeCoSm x nanoparticles. 철 산화물, 철 황화물, 자성 유체, 입자 크기 분포, 크기 조절 합성, Fe-기재 나노 재료, 자철광 나노입자. Iron oxides, iron sulfides, magnetic fluids, particle size distribution, scaled synthesis, Fe-based nanomaterials, magnetite nanoparticles.

Process for preparing ceramic powder

THE PROCESS FOR PREPARING CERAMIC POWDER HAVING A CORE-SHELL STRUCTURE BY DISSOLVING A CRYSTALLINE CERAMIC POWDER IN WATER SO AS TO LEAVE A CORE PORTION OF THE CERAMIC POWDER WHILE HEATING; DEPOSITING A COMPONENT OF THE CERAMIC POWDER DISSOLVED IN THE WATER ON AND AROUND SURFACES OF THE CORE PORTION THEREOF AS A DEPOSITED MATERIAL FROM THE WATER BY GRADUALLY COOLING THE CERAMIC POWDER AND THE WATER OBTAINED IN THE STEP OF DISSOLVING; AND FIRING A MIXTURE OF THE CERAMIC POWDER OBTAINED IN THE STEP OF DEPOSITING WITH AN ADDITIVE AT A HIGH TEMPERATURE TO SUBJECT THE DEPOSITED MATERIAL AND THE ADDITIVE TO SOLID PHASE REACTION TO FORM A SHELL PORTION ON AND AROUND THE CORE PORTION OF THE CERAMIC POWDER. THE PROCESS CAN PRODUCE THE CERAMIC POWDER HAVING A CORESHELL STRUCTURE FROM A CRYSTALLINE CERAMIC POWDER, THEREBY ACHIEVING HIGH ELECTRICAL AND MECHANICAL FEATURES WHEN FORMED INTO CERAMIC ELECTRONIC PARTS. ON THE OTHER HAND, CONVENTIONAL CERAMIC ELECTRONIC PARTS PRODUCED FROM HIGHLY CRYSTALLINE CERAMIC POWDER RAISE THE MANUFACTURING COST BECAUSE SUCH CERAMIC POWDER IS LOW IN REACTIVITY SO THAT IT REQUIRES HIGH FIRING TEMPERATURE. CERAMIC POWDER IN A CORE-SHELL STRUCTURE PRODUCED FROM LOW- CRYSTALLINE CERAMIC POWDER RESULTS TO CONVENTIONAL CERAMIC ELECTRONIC PARTS WHICH ARE POOR IN ELECTRICAL AND MECHANICAL CHARACTERISTICS.

Method for improving coercive force of epsilon-type iron oxide

To provide a method for improving a coercive force of epsilon-type iron oxide particles. Specifically, to provide a method for improving the coercive force of an epsilon-type iron oxide comprising: substituting Fe-site of the epsilon-type iron oxide with other element, while not substituting Fe of D-site in the epsilon-type iron oxide with other element, and the epsilon type iron oxide.

Bismuth-containing piezoelectric composition and piezoelectric device

A piezoelectric composition 2 comprises a plurality of crystal particles 4, wherein the piezoelectric composition 2 includes bismuth, iron, barium, titanium, and oxygen; the crystal particles 4 include a core 6 and a shell 8 covering the core 6; the average value of the contents of bismuth in the cores 6 is expressed as C CORE % by mass, the average value of the contents of bismuth in the shells 8 is expressed as C SHELL % by mass, and the C CORE is lower than the C SHELL ; and the number of all the particles comprised in the piezoelectric composition 2 is expressed as N, the number of the crystal particles 4 including the core 6 and the shell 8 is expressed as n, and n/N is 0.10 to 1.00.

Synthesis of magnetite nanoparticle and method of forming nanomaterial using iron as base

【課題】粒子サイズを制御した鉄をベースとするナノ粒子を合成する方法を提供すること。 【解決手段】鉄塩をアルコール、カルボン酸、アミンと有機溶媒中で混合し、混合物を２００〜３６０℃に加熱することによりマグネタイト・ナノ粒子材料を作製する。粒子のサイズは、鉄塩と酸／アミンの比を変化させることにより、または小さいナノ粒子を酸化鉄でさらに被覆することにより制御でき、２ｎｍ〜２０ｎｍで、狭いサイズ分布のマグネタイト・ナノ粒子が得られる。本発明は、酸化鉄で被覆したナノ粒子材料にも容易に拡張できる。また、反応混合物中でのアルコールをチオールに置き換えることによって、硫化鉄をベースとしたナノ粒子材料を合成できる。このマグネタイト・ナノ粒子は、Ｆｅ ２ Ｏ ３ に酸化することができ、ｂｃｃ−Ｆｅナノ粒子に還元することもできる。一方、酸化鉄ベースの材料からは、ＣｏＦｅなどの鉄ベースメタリック・ナノ粒子を作製できる。 【選択図】　なし

Piezoelectric / electrostrictive ceramics

Conversion of carbonaceous fuels into carbon free energy carriers

A system for converting fuel is provided and includes a first reactor comprising a plurality of ceramic composite particles, the ceramic composite particles comprising at least one metal oxide disposed on a support, wherein the first reactor is configured to reduce the at least one metal oxide with a fuel to produce a reduced metal or a reduced metal oxide; a second reactor configured to oxidize at least a portion of the reduced metal or reduced metal oxide from the said first reactor to produce a metal oxide intermediate; a source of air; and a third reactor communicating with said source of air and configured to regenerate the at least one metal oxide from the remaining portion of the solids discharged from the said first reactor and the solids discharged from the said second reactor by oxidizing the metal oxide intermediate.

DISPERSIONS OF BARIUM TITANATE

А 2001101934 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) ‚ (13) (11) ох | ЗАМ аа ЗА А 57 М’ С 04 В 35/468, 35/628, Н 01 С 4/42 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12 ИЗВЕЩЕНИЯ К ЗАЯВКЕ НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2001101934/03, 21.06.1999 (71) Заявитель(и): КАБОТ КОРПОРЕЙШН (1$) (30) Приоритет: 23.06.1998 Ц$ 60/090,408 14.08.1998 4$ 60/096,668 (72) Автор(ы): МИЛЛЕР Дэвид В. (Ц$), (43) Дата публикации заявки: 10.01.2003 ВЕНИГАЛЛА Сридхар (1$), (85) Дата перевода заявки РСТ на национальную КЛЭНСИ Дональд Дж. (0$) фазу: 23.01.2001 (74) Патентный поверенный: (86) Заявка РСТ: Егорова Галина Борисовна 0$ 99/13980 (21.06.1999) (87) Публикация РСТ: М/О 99/67189 (29.12.1999) Адрес для переписки: 129010, Москва, ул. Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. Г.Б.Егоровой (54) ДИСПЕРСИИ ТИТАНАТА БАРИЯ РАЭА - Признание заявок на изобретение отозванными в связи с непредставлением в установленном порядке документа, подтверждающего уплату патентной пошлины за регистрацию изобретения и выдачу патента (51) С04В Дата отзыва заявки: 20.07.2004 Извещение опубликовано: 10.01.2005 БИ: 01/2005 Страница: 1 па У 600 Сс А"

Carbon-containing fuel is converted into carbon-free energy carrier

提供了用于将燃料进行转化的系统，该系统包括第一反应器，该第一反应器包括许多陶瓷复合颗粒，所述陶瓷复合颗粒包含位于载体上的至少一种金属氧化物，其中所述第一反应器经配置以用燃料将至少一种金属氧化物还原从而产生还原的金属或还原的金属氧化物；第二反应器，该第二反应器经配置以将来自所述第一反应器的还原的金属或还原的金属氧化物的至少一部分氧化从而产生金属氧化物中间体；空气源；和第三反应器，该第三反应器与所述空气源连通并且经配置以通过将金属氧化物中间体氧化使来自从所述第一反应器排放的固体的剩余部分和从所述第二反应器排放的固体的至少一种金属氧化物再生。

Controlled distribution of chemistry in ceramic systems

A method of the controlling the chemical and physical characteristics of a body formed from a powder precursor, including measuring a predetermined amount of a first particulate precursor material, wherein the first particulate precursor material defines a plurality of respective generally spherical first phase particles, adhering second phase particles to the respective first phase particles to define composite particles, forming the composite particles into a green body, and heating the green body to yield a fired body. The second phase particles adhered to the first phase particles are substantially uniformly distributed and a respective first phase particle defines a first particle diameter that is at least about 10 times larger than the second phase diameter defined by a respective second phase particle. The composite particles define a predetermined composition.

Method for doping or colouring ceramic, glass ceramic, or glass

Method of colouring carrier materials

The present invention relates to a method of producing coloured carrier particles (substrates), which comprises a) dispersing the carrier particles in a solution of a colorant or latent pigment, adding the carrier particles to a solution of a colorant or latent pigment, or adding a latent pigment or a colorant to a dispersion of the carrier particles, b) precipitating the colorant or latent pigment onto the carrier particles, and c) in the case of a latent pigment, subsequently converting it to the pigment, and to the coloured substrates obtainable by such a method, and also to the use thereof. Using the methods according to the invention it is possible to obtain colorations and coloured substrates that have surprisingly good light-fastness properties.

Photoluminescent pigment and photoluminescent coating composition

Dispersible, metal oxide-coated, barium titanate materials

Low creep refractory ceramic and method of making

지르콘 분말을 소결조제와 접촉시키는 단계를 포함하며, 상기 소결조제는 액체, 졸, 또는 이들의 결합 형태인 세라믹 조성물의 제조방법이 개시되어 있다. 또한 상기 지르콘 조성물을 원하는 형상으로 성형하고, 조성물을 소성시켜 세라믹 바디를 제조하는 방법이 개시되어 있다. 본 방법에 의해 제조된 상기 지르콘 조성물 및 세라믹 바디 또한 개시되어 있다.

Tungsten carbide powder with surface coated with metal oxide layer and forming method thereof

本发明涉及增材制造技术领域，提供了一种表面包覆金属氧化物层的碳化钨粉体及其成型工艺，其制备方法包括将碳化钨粉体加入到含有金属离子的包覆剂溶液中，然后进行球磨、旋蒸；将旋蒸后的粉体放于气氛炉中并通入氢气进行高温还原反应，然后通入氩气（或者氮气）与氧气的混合气进行高温氧化反应，获得表面包覆金属氧化物层的碳化钨粉体；或者将旋蒸后的粉体直接通过高温真空处理或者在高温氩气或氮气中处理获得表面包覆金属氧化物层的碳化钨粉体；将粉体加入到光敏树脂中，配置光固化打印浆料，然后进行光固化打印；将光固化打印得到的样品进行排胶、还原、烧结，获得硬质合金打印样品。本发明提供的表面包覆金属氧化物层的硬质合金粉体的制备方法能够有效降低硬质合金粉体的吸光度，解决了现有的硬质合金粉体难以进行光固化打印的问题。

Dielectric ceramic and laminated ceramic capacitor using the same

A dielectric ceramic that includes a sintered body of BaTiO 3 based ceramic grains, in which the ceramic grains each include a shell part as a surface layer part and a core part inside the shell part. The ceramic grains contain, as accessory constituents, R (R, which is a rare-earth element, is at least one selected from the group consisting of Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, and Y) and M (M is at least one selected from the group consisting of Mg, Mn, Ni, Co, Fe, Cr, Cu, Al, Mo, W, and V). R and M are present in the shell part of the ceramic grain, and concentrations of R and M contained in the shell part are increased from a grain boundary toward the core part.

Process for producing colored blank and dental molds.

Method for dry dispersion of nanoparticles and production of hierarchical structures and coatings

本发明涉及分散合成的或天然的纳米颗粒以及纳米复合材料的方法以及它们在不同行业中的应用，包括陶瓷、涂层、聚合物、建筑、涂料、催化剂、药物和粉状材料行业。

Method of manufacturing metal oxide ceramic composite powder

A metal oxide ceramic composite powder has crystals of a reacted and precipitated metal oxide distributed on fine particles of a ceramic material. The metal oxide is derived from an aqueous solution of metal chloride, which in the presence of a magnetic field, forms a complex ion solution. The complex ion may comprise a proportional blend of metallic and semi-metallic elements to produce specific properties. The complex ion is reacted and precipitated with an alkaline material to deposit a high purity metal oxide on the ceramic material. Each ceramic particle thus has a uniform coating of a high purity metal oxide deposited thereon.

Anode including surface-treated anode active material and lithium battery employing the same

Barium titanate dispersions

The invention provides slurries, dispersions, or slips of barium titanate-based particles in a non-aqueous medium and methods of their production. The particles have a coating comprising a metal oxide, metal hydrous oxide, metal hydroxide or organic acid salt of a metal other than barium or titanium. At least 90 percent of the particles have a particle size less than 0.9 micrometer when the coated particles are dispersed by high shear mixing.

METHOD FOR DISPERSING NANOPARTICLES

1. Способ диспергирования наночастиц с размером меньше, чем 100 нм по меньшей мере в одном измерении, на опорных или других частицах или на подложке, который предусматривает их перемешивание в сухой среде. ! 2. Способ по п.1, в котором наночастицы добавляют в дисперсию в количестве меньше, чем 5 вес.% в пересчете на вес опорных частиц. ! 3. Способ по п.1, в котором избыток наночастиц, диспергированных на подложке, удаляют при помощи воздушного давления, в результате чего получают покрытие из наночастиц с толщиной меньше, чем 100 нм. ! 4. Способ по одному из пп.1-3, в котором материал наночастиц или опорных частиц независимо выбирают из группы материалов, в которую входят неорганические, органические или металлические материалы. ! 5. Способ по п.4, в котором наночастицы имеют одинаковую или различную природу, причем их материал выбирают из группы, в которую входят оксиды металла, гидроксиды, карбонаты, сульфаты, фосфаты, силикаты, бораты, алюминаты, термостабильные полимеры, термоплавкие полимеры, смолы или любая их комбинация. ! 6. Способ по п.5, в котором наночастицы имеют одинаковую или различную природу, причем их материал выбирают из группы, в которую входят сепиолит, оксид алюминия, кобальта, меди, олова, никеля, кремния, титана, цинка, или любая их комбинация. ! 7. Способ по п.4, в котором материалом опорных частиц является оксид алюминия или оксид цинка. ! 8. Способ по п.1, в котором материал подложки выбирают из группы, в которую входят керамика, стекло, полимер или металл. ! 9. Способ по п.8, в котором материал подложки выбирают из группы, в которую входят глинозем, монокристаллический кремний, полиамид, полипропилен или ковар. ! 10. Спос�

Bright pigment, and bright coating composition and automotive body coating each containing the same

The bright pigment of the present invention includes flaky particles and a metal oxide layer coating at least a part of the surface of each flaky particle. The bright pigment or the flaky particles of the present invention have a particle size distribution in which the particle size at 99% of the cumulative volume from the smaller particle size is 48 μm or less, and the maximum particle size is 62 μm or less. The flaky particles are made of a material having a refractive index in the range of 1.4 to 1.8. The flaky particles have a thickness distribution in which the frequency of the particles having a thickness in the range of 0.8 μm to 1.9 μm is 90% or more by volume, or the frequency of the particles having a thickness in the range of 0.01 μm to 0.35 μm is 90% or more by volume.

Polycrystalline diamond

本发明提供一种PCD主体，其包括相互结合的金刚石颗粒的骨架体，所述金刚石颗粒之间限定有间隙。至少一些间隙含有包括用于金刚石的金属催化剂材料的填充材料，所述填充材料包括Ti、W及选自由V、Y、Nb、Hf、Mo、Ta、ZrCr、Zr和稀土元素组成的组的附加元素M。在填充材料中Ti的含量为至少0.1wt%且至多20wt%。在填充材料中M的含量为填充材料的至少0.1wt%且至多20wt%，并且在填充材料中W的含量为填充材料的至少5wt%且至多50wt%。

FERRITE-CERAMIC COMPOSITE POWDER AND METHOD FOR THE PRODUCTION THEREOF.

Disclosed is a ferrite-ceramic composite powder consisting of fine particles of a ceramic material having a ferrite coating firmly bonded to the surface thereof. The ferrite-ceramic composite powder is manufactured by the steps of immersing pellets of iron in an aqueous solution of ferric chloride in the presence of a magnetic field thereby turning the ferric chloride solution into an aqueous solution of a complex salt, mixing the complex salt solution with an aqueous solution of ferric chloride containing many fine particles of a ceramic material and agitating the mixture to obtain a composite aqueous solution, mixing an aqueous solution of caustic soda with the composite aqueous solution and agitating the mixture to cause deposition of crystals of a ferrite on the surface of the fine ceramic particles, rinsing the particles, and drying the particles.

Photoluminescent pigment, and photoluminescent coating composition and automotive outer panel each comprising the same

本发明的光亮性颜料含有薄片状粒子、和被覆所述薄片状粒子的表面的至少一部分的金属氧化物层。本发明的光亮性颜料或所述薄片状粒子在粒度分布中，自粒径小的一侧开始的体积累积量相当于99％的粒径为48μm以下，且最大粒径为62μm以下。所述薄片状粒子含有具有1.4～1.8的折射率的材料。进而，所述薄片状粒子在厚度分布中，厚度0.8μm～1.9μm的范围的频度按体积为90％以上，或厚度0.01μm～0.35μm的范围的频度按体积为90％以上。

Ferrite powder for bonded magnet, production method therefor, and ferrite bonded magnet

提供一种粘结磁体用铁氧体粉末及其制造方法以及使用该粘结磁体用铁氧体粉末的铁氧体系粘结磁体，所述粘结磁体用铁氧体粉末能够制造即使提高复合物中的F.C.的值、流动性也优异的、高BH max 的铁氧体系粘结磁体，具有适于其用途的p‑iHc的值。提供一种粘结磁体用铁氧体粉末，其中，干式激光衍射式测定的平均粒径为5μm以下，比表面积为1.90m 2 /g以上且小于2.80m 2 /g，压缩密度为3.50g/cm 3 以上且小于3.78g/cm 3 ，压粉体的矫顽力为2300Oe以上且小于2800Oe。

Dispersible, metal oxidecoated, barium titanate materials

Barium titanate-based particles having a coating comprising a metal oxide, metal hydrous oxide, metal hydroxide or organic acid salt of a metal other than barium or titanium, wherein at least 90 percent of said coated particles have a particle size less than 0.9 micrometer.

Piezoelectric composition and piezoelectric element

Polymerized inorganic-organic precursor solutions and sintered membranes

Polymerised inorganic-organic precursor solution obtainable according to a process comprising the steps of (a) forming a solution of at least one metal cation and an organic compound and (b) heating the solution to a temperature between 20-300° C. to form a polymerised solution of precursor for nano-sized oxides, and (c) concluding the heating when the room temperature viscosity of the solution is from 10 to 500 mPa·s.

Fuel electrode material for solid oxide fuel cell, fuel electrode using the same, and fuel cell

Method for manufacturing composite ceramic material

Provided is a method of making a composite ceramic material for a fuel cell. The composite ceramic material for the fuel cell forms a cored structure where perovskite ceramic particles having a small particle diameter surround lanthanum cobaltite particles having a large particle diameter. Lanthanum cobaltite is added as a starting material in a process of synthesizing the perovskite ceramic particles. The composite ceramic material for the fuel cell made according to this method improves an electric connection characteristic between a separation plate and a polar plate of the fuel cell, and is chemically and mechanically stable.

Barium titanate dispersions

The invention provides slurries, dispersions, or slips of barium titanate- based particles in a non-aqueous medium and methods of their production. The particles have a coating comprising a metal oxide, metal hydrous oxide, meta l hydroxide or organic acid salt of a metal other than barium or titanium. At least 90 percent of the particles have a particle size less than 0.9 micrometer when the coated particles are dispersed by high shear mixing.</SD OAB>

Composite ceramic contact material for solid oxide fuel cell and method of preparing ceramic contact material

본 발명은 고체 산화물 연료 전지용 복합 세라믹 접촉재 및 그 제조방법에 관한 것이다. The present invention relates to a composite ceramic contact material for a solid oxide fuel cell and a method of manufacturing the same. 고체 산화물 연료 전지용 복합 세라믹 접촉재는 입경이 큰 란탄코발타이트 입자 주위에 입경이 작은 페로브스카이트형 세라믹 입자가 감싸고 있는 심지구조를 이루고 있으며, 란탄코발타이트는 페로브스카이트형 세라믹 입자를 합성하기 위한 공정에서 출발 물질로 함께 첨가되어 합성된다. The composite ceramic contact material for a solid oxide fuel cell has a wick structure in which a perovskite-type ceramic particle having a small particle size is wrapped around a lanthanum cobaltite particle having a large particle size, and lanthanum cobaltite is a process for synthesizing perovskite-type ceramic particles. Are added together as starting materials in 본 발명에 의한 고체산화물 연료전지용 복합 세라믹 접촉재는 연료전지의 분리판과 극판 사이의 전기적 연결 특성을 향상시키며 화학적, 기계적으로도 안정하다. The composite ceramic contact material for a solid oxide fuel cell according to the present invention improves the electrical connection between the separator and the electrode plate of the fuel cell and is chemically and mechanically stable. 고체 산화물, 연료 전지, 단위 전지, 분리판, 복합 세라믹 접촉재, 란탄코발타이트, 페로브스카이트형 세라믹 입자 Solid oxide, fuel cell, unit cell, separator, composite ceramic contact material, lanthanum cobaltite, perovskite type ceramic particles

It is a kind of for new aggregate of castable and preparation method thereof

本发明公开了一种用于浇注料的新型骨料及其制备方法，所述新型骨料主要以包覆的方式形成，由于选用的核基体和包覆材料不同，所制备成的新型骨料也将有所差异。本发明主要是以刚玉颗粒或矾土颗粒作为载体，通过附着不同材质的包覆材料进行试验。制备方法主要有以下步骤：在颗粒表面附着一种或多种如MgO、Cr 2 O 3 、Al 2 O 3 、Fe 2 O 3 、ZrO 2 或稀土金属氧化物等不同氧化物制备的浆体，然后经1100℃～1900℃高温烧成3～10h，获得新型骨料。本发明提供的新型骨料具有性能稳定、原料丰富等特点，可以在提高使用性能的同时降低浇注料的制备成本。

Composite ceramic material and method for manufacturing the same

本发明涉及一种燃料电池用复合陶瓷材料及其制备方法。燃料电池用复合陶瓷材料形成为小粒径钙钛矿型陶瓷粒子包住大粒径钴酸镧粒子周围的带芯结构，在合成钙钛矿型陶瓷粒子的工艺中，钴酸镧作为起始原料一起添加而合成。根据本发明的燃料电池用复合陶瓷材料提高分离板和极板之间的电连接特性，且在化学和机械上也很稳定。

Production of ceramic material powder

Powder of ceramic materials is produced by mixing a powder of a basic ceramic composition, a solvent and a surfactant to prepare a slurry, adding at least one unsaturated fatty acid salt containing an additive metal element to the resultant slurry, polymerizing the at least one unsaturated fatty acid salt with a polymerization initiator to form a polymer of at least one unsaturated fatty acid salt, drying the resultant slurry to form a layer of the resultant polymer on particle surfaces of the basic ceramic composition, and then calcining the resultant coated powder of the basic ceramic composition.

Piezoelectric/electrostrictive ceramics and process for producing the same

Piezoelectric/electrostrictive ceramics are provided, which exhibit only a small change in properties after polarization, high insulating properties, and narrow variations in durability. A piezoelectric/electrostrictive element has a laminated structure in which an electrode film, a piezoelectric/electrostrictive film, another electrode film, another piezoelectric/electrostrictive film, and another electrode film are laminated in order of mention on a thin portion of a substrate. The piezoelectric/electrostrictive films are ceramic films that include a perovskite oxide containing lead as an A-site component and magnesium, nickel, niobium, titanium, and zirconium as B-site components. Crystal grains in the piezoelectric/electrostrictive films have a core/shell structure with the shell portion having a higher concentration of nickel than the core portion and with the core portion having a higher concentration of magnesium than the shell portion. Such piezoelectric/electrostrictive films can be formed by firing a piezoelectric/electrostrictive material powder synthesized from a columbite compound.

Low creep refractory ceramic and method of making

A method is disclosed for manufacturing a zircon composition, the method comprising contacting a zircon powder with a sintering aid, wherein the sintering aid is in the form of a liquid, a sol, or a combination thereof. Also disclosed are methods for forming the zircon composition into a desired shape and for firing a composition to produce a ceramic body. The zircon composition and ceramic body produced by the described methods are also disclosed.

Controlled distribution of chemistry in ceramic systems

A method of the controlling the chemical and physical characteristics of a body formed from a powder precursor, including measuring a predetermined amount of a first particulate precursor material, wherein the first particulate precursor material defines a plurality of respective generally spherical first phase particles, adhering second phase particles to the respective first phase particles to define composite particles, forming the composite particles into a green body, and heating the green body to yield a fired body. The second phase particles adhered to the first phase particles are substantially uniformly distributed and a respective first phase particle defines a first particle diameter that is at least about 10 times larger than the second phase diameter defined by a respective second phase particle. The composite particles define a predetermined composition.

Composite ceramic material and a production method therefor

Method for improving coercive force of epsilon-type iron oxide, and epsilon-type iron oxide

To provide a method for improving a coercive force of epsilon-type iron oxide particles, and an epsilon-type iron oxide. Specifically, to provide a method for improving the coercive force of an epsilon-type iron oxide comprising: substituting Fe-site of the epsilon-type iron oxide with other element, while not substituting Fe of D-site in the epsilon-type iron oxide with other element, and the epsilon type iron oxide.

Glittering pigment, glittering paint composition containing the same, and automobile outer plate coating

本発明の光輝性顔料は、薄片状粒子と、前記薄片状粒子の表面の少なくとも一部を被覆する金属酸化物層と、を含む。本発明の光輝性顔料または前記薄片状粒子は、粒度分布において、粒径が小さい側からの体積累積が９９％に相当する粒径が４８μｍ以下であり、かつ、最大粒径が６２μｍ以下である。前記薄片状粒子は、１．４〜１．８の屈折率を有する材料からなる。さらに、前記薄片状粒子は、厚さ分布において、厚さ０．８μｍ〜１．９μｍの範囲の頻度が体積で９０％以上、または、厚さ０．０１μｍ〜０．３５μｍの範囲の頻度が体積で９０％以上を満たすものである。 The glitter pigment of the present invention includes flaky particles and a metal oxide layer covering at least a part of the surface of the flaky particles. The glitter pigment of the present invention or the flaky particle has a particle size distribution of 48 μm or less corresponding to 99% volume accumulation from the small particle size side in the particle size distribution, and a maximum particle size of 62 μm or less. . The flaky particles are made of a material having a refractive index of 1.4 to 1.8. Furthermore, the flaky particles have a thickness distribution in which the frequency in the range of 0.8 μm to 1.9 μm is 90% or more by volume, or the frequency in the range of 0.01 μm to 0.35 μm is volume. It satisfies 90% or more.

Stabilised metal oxides

A composition suitable for use in the manufacture of ceramics comprises particulate zirconia the particles of which are coated with a hydrous oxide of yttrium and a hydrous oxide of manganese, iron, cobalt, nickel, copper or zinc. Preferably the particles also have an inner coating of titania, zirconia, hafnia or alumina. Ceramics prepared from the particulate zirconia of the invention are resistant to degradation by water at temperatures above 100 DEG C.