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公开(公告)号:WO2008089177A3
公开(公告)日:2009-10-29
申请号:PCT/US2008051066
申请日:2008-01-15
Applicant: SAINT GOBAIN CERAMICS , BAUER RALPH , HAERLE ANDREW G , YENER DORUK O , THERON CLAIRE , KAVANAUGH MICHAEL D
Inventor: BAUER RALPH , HAERLE ANDREW G , YENER DORUK O , THERON CLAIRE , KAVANAUGH MICHAEL D
CPC classification number: C01F7/02 , B82Y30/00 , C01F7/021 , C01F7/442 , C01P2004/04 , C01P2004/32 , C01P2004/62 , C01P2004/64 , C01P2006/12 , C01P2006/36 , C09G1/02 , C09K3/1409 , Y10T428/2982
Abstract: Ceramic particulate material includes alumina particles, the particles having a specific surface area (SSA) not less than 15 m2/g and not greater that 75m2/g and a sphericity quantified by at least one of (i) a mean roundness not less than 0.710 as measured by Roundness Correlation Image Analysis, and (ii) a concavity less than 20% wherein concavity is the percent of alumina particles based on a sample of at least 100 particles, which have a concave outer peripheral portion that extends along a distance not less that 10% of d50 bij TEM inspection, the concave outer peripheral portion having a negative radius of curvature as viewed from an interior of the particle. Also claimed is a method for forming said ceramic particulare material comprising a hot isostatic pressing of loose powder in order to effect phase transformation of the loose powder.
Abstract translation: 陶瓷颗粒材料包括氧化铝颗粒,具有不小于15m 2 / g且不大于75m 2 / g的比表面积(SSA)的颗粒,并且通过以下至少一种量化球形度(i)平均圆度不小于0.710 如通过圆度相关图像分析测量的,以及(ii)小于20%的凹度,其中凹面是基于至少100个颗粒的样品的氧化铝颗粒的百分比,其具有凹入的外周部分,该凹部外周部分沿着不小于 该10%的d 50 bij TEM检查中,凹形外周部分从颗粒内部观察时具有负的曲率半径。 还要求保护的是形成所述陶瓷颗粒材料的方法,其包括松散粉末的热等静压,以便实现松散粉末的相变。
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公开(公告)号:CO6231022A2
公开(公告)日:2010-12-20
申请号:CO09073666
申请日:2009-07-15
Applicant: SAINT GOBAIN CERAMICS
Inventor: BAUER RALPH , HAERLE ANDREW G , YENER DORUK , THERON CLAIRE , KAVANAUGH MICHAEL D
IPC: C01F7/02
Abstract: 1.- Material particulado de cerámica, que comprende: Partículas de alúmina, las partículas que tienen un área de superficie específica (SSA) de no menos de 15 m2/g y no más grande de 75 m2/g y una esfericidad cuantificada por al menos una de (i) una redondez media no menor de 0.710 como se midió por Análisis de Imagen para Correlación de Redondez, y (ii) una concavidad de menos de 20%, en donde la concavidad es el porcentaje de partículas de alúmina en una muestra de al menos 100 partículas, que tienen una porción periférica exterior cóncava que se extiende a lo largo de una distancia de no menos de 10% de d50 por inspección TEM, la porción periférica exterior cóncava que tiene un radio negativo de curvatura como se ve desde un interior de la partícula. 2.- El material particulado cerámico de la reivindicación 1, en donde el SSA no es mayor de 60 m2/g. 3.- El material particulado cerámico de la reivindicación 2, en donde el SSA no es mayor de 50 m2/g. 4.- El material particulado cerámico de la reivindicación 3, en donde el SSA no es mayor de 40 m2/g. 5.- El material particulado cerámico de la reivindicación 4, en donde el SSA no es mayor de 30 m2/g. 6.- El material particulado cerámico de la reivindicación 1, en donde las partículas de alúmina están comprendidas de alúmina de fase alfa. 7.- El material particulado cerámico de la reivindicación 6, en donde las partículas de alúmina consisten esencialmente de alúmina de fase alfa. 8.- El material particulado cerámico de la reivindicación 6, en donde las partículas de alúmina están comprendidas por al menos 85 p% de alúmina de fase alfa.9.- El material particulado cerámico de la reivindicación 8, en donde las partículas de alúmina son esencialmente alúmina de fase alfa completamente. 10.- El material particulado cerámico de la reivindicación 9, en donde las partículas de alúmina son alúmina de fase alfa de un solo cristal. 11.- El material particulado cerámico de la reivindicación 1, en donde las partículas de alúmina tienen una concavidad de menos de menos de 15%. 12.- El material particulado cerámico de la reivindicación 11, en donde las partuelas de alúmina tienen una concavidad de menos de 10%. 13.- El material particulado cerámico de la reivindicación 12, en donde las partículas de alúmina tienen una concavidad de menos de 10%.
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公开(公告)号:MX2009007583A
公开(公告)日:2009-07-22
申请号:MX2009007583
申请日:2008-01-15
Applicant: SAINT GOBAIN CERAMICS
Inventor: BAUER RALPH , HAERLE ANDREW G , YENER DORUK O , THERON CLAIRE , KAVANAUGH MICHAEL D
Abstract: El material en partículas cerámico incluye partículas de alúmina, las partículas teniendo un área de superficie específica (SSA) no menor de 15 m2/g y no mayor de 75 m2/g, y una esfericidad cuantificada por cuando menos una de (i) una redondez media no menor de 0.710 medida por análisis de imágenes por correlación de redondez, y (ii) una concavidad menor de 20%, en donde la concavidad es el por ciento de partículas de alúmina basado en una muestra de por lo menos 100 partículas, las cuales tienen una porción periférica exterior cóncava que se extiende a lo largo de una distancia no menor de 10% de d50 por inspección por TEM, la porción periférica exterior cóncava teniendo un radio de curvatura negativo, según se observa desde un interior de la partícula.
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公开(公告)号:CA2673769C
公开(公告)日:2012-08-21
申请号:CA2673769
申请日:2008-01-15
Applicant: SAINT GOBAIN CERAMICS
Inventor: BAUER RALPH , HAERLE ANDREW G , YENER DORUK O , THERON CLAIRE , KAVANAUGH MICHAEL D
Abstract: Ceramic particulate material includes alumina particles, the particles having a specific surface area (SSA) not less than 15 m2/g and not greater than 75 m2/g and a sphericity quantified by at least one of (i) a means roundness not less than 0.710 as measured by Roundness Correlation Image Analysis, and (ii) a concavity less than 20%, wherein concavity is the percent of alumina particles based on a sample of at least 100 particles, which have a concve outer peripheral portion that extends along a distance not less than 10% of d50by TEM inspection, the concave outer peripheral portion having a negative radius of curvature as viewed from an interior of the particle.
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公开(公告)号:AU2008206388B2
公开(公告)日:2011-05-26
申请号:AU2008206388
申请日:2008-01-15
Applicant: SAINT GOBAIN CERAMICS & PLASTICS INC
Inventor: THERON CLAIRE , BAUER RALPH , YENER DORUK O , KAVANAUGH MICHAEL D , HAERLE ANDREW G
Abstract: Processes for forming ceramic particulate material. The ceramic particulate material includes alumina particles, the particles having a specific surface area (SSA) not less than 15 m2/g and not greater than 75 m2/g and a sphericity quantified by at least one of (i) a mean roundness not less than 0.710 as measured by Roundness Correlation Image Analysis, and (ii) a concavity less than 20%, wherein concavity is the percent of alumina particles based on a sample of at least 100 particles, which have a concave outer peripheral portion that extends along a distance not less than 10% of d50 by TEM inspection, the concave outer peripheral portion having a negative radius of curvature as viewed from an interior of the particle.
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公开(公告)号:UA99909C2
公开(公告)日:2012-10-25
申请号:UAA200908177
申请日:2008-01-15
Applicant: SAINT GOBAIN CERAMICS
Inventor: BAUER RALPH , HAERLE ANDREW G , YENER DORUK O , THERON CLAIRE , KAVANAUGH MICHAEL D
Abstract: Керамическийзернистыйматериалвключаетчастицыглинозема, имеющиеудельнуюплощадьповерхности (УПП), неменее, чем 15 м/ги неболее, чем 75 м/г, исферичность, соответствующую, поменьшеймере, одномуиздвухпоказателей: (1) средняяокруглость, неменее, чем 0,710 заданнымикорреляционногоанализаизображениянаокруглость, и (2) вогнутостьменее, чем 20 %, котораяопределяетсякакпроцентчастицоксидаалюминияв выборкеиз, поменьшеймере, 100 частиц, имеющихвогнутуювнешнююпериферическуюповерхность, котораяпростираетсянарасстоянии, неменее, чем 10 % d, приисследованиис помощьютрансмиссионнойэлектронноймикроскопии (ТЭМ), причемтакойвогнутыйучастоквнешнейповерхностиимеетотрицательныйрадиускривизны, еслисмотретьизнутричастицы.
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公开(公告)号:CA2673769A1
公开(公告)日:2008-07-24
申请号:CA2673769
申请日:2008-01-15
Applicant: SAINT GOBAIN CERAMICS
Inventor: THERON CLAIRE , KAVANAUGH MICHAEL D , YENER DORUK O , BAUER RALPH , HAERLE ANDREW G
Abstract: Ceramic particulate material includes alumina particles, the particles ha ving a specific surface area (SSA) not less than 15 m2/g and not greater tha n 75 m2/g and a sphericity quantified by at least one of (i) a means roundne ss not less than 0.710 as measured by Roundness Correlation Image Analysis, and (ii) a concavity less than 20%, wherein concavity is the percent of alum ina particles based on a sample of at least 100 particles, which have a conc ve outer peripheral portion that extends along a distance not less than 10% of d50by TEM inspection, the concave outer peripheral portion having a negat ive radius of curvature as viewed from an interior of the particle.
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公开(公告)号:AU2008206388A1
公开(公告)日:2008-07-24
申请号:AU2008206388
申请日:2008-01-15
Applicant: SAINT GOBAIN CERAMICS
Inventor: THERON CLAIRE , BAUER RALPH , YENER DORUK O , KAVANAUGH MICHAEL D , HAERLE ANDREW G
Abstract: Processes for forming ceramic particulate material. The ceramic particulate material includes alumina particles, the particles having a specific surface area (SSA) not less than 15 m2/g and not greater than 75 m2/g and a sphericity quantified by at least one of (i) a mean roundness not less than 0.710 as measured by Roundness Correlation Image Analysis, and (ii) a concavity less than 20%, wherein concavity is the percent of alumina particles based on a sample of at least 100 particles, which have a concave outer peripheral portion that extends along a distance not less than 10% of d50 by TEM inspection, the concave outer peripheral portion having a negative radius of curvature as viewed from an interior of the particle.
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公开(公告)号:BRPI0806597A2
公开(公告)日:2014-05-06
申请号:BRPI0806597
申请日:2008-01-15
Applicant: SAINT GOBAIN CERAMICS
Inventor: BAUER RALPH , HAERLE ANDREW G , YENER DORUK O , THERON CLAIRE , KAVANAUGH MICHAEL D
Abstract: Processes for forming ceramic particulate material. The ceramic particulate material includes alumina particles, the particles having a specific surface area (SSA) not less than 15 m2/g and not greater than 75 m2/g and a sphericity quantified by at least one of (i) a mean roundness not less than 0.710 as measured by Roundness Correlation Image Analysis, and (ii) a concavity less than 20%, wherein concavity is the percent of alumina particles based on a sample of at least 100 particles, which have a concave outer peripheral portion that extends along a distance not less than 10% of d50 by TEM inspection, the concave outer peripheral portion having a negative radius of curvature as viewed from an interior of the particle.
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公开(公告)号:NZ578062A
公开(公告)日:2012-05-25
申请号:NZ57806208
申请日:2008-01-15
Applicant: SAINT GOBAIN CERAMICS
Inventor: BAUER RALPH , HAERLE ANDREW G , YENER DORUK O , THERON CLAIRE , KAVANAUGH MICHAEL D
Abstract: Disclosed is a ceramic particulate material, comprising: alumina particles comprised of alpha phase alumina, the particles having an average primary particle size not greater than 135 nm as measured by TEM and/or a specific surface area (SSA) not less than 15 m2/g and not greater than 75 m2/g, and wherein the alumina particles have a sphericity quantified by at least one of (i) a mean roundness not less than 0.710 as measured by Roundness Correlation Image Analysis, and (ii) a concavity less than 20 percent, wherein concavity is the percent of alumina particles based on a sample of at least 100 particles, which have a concave outer peripheral portion that extends along a distance not less than 10 percent of d50 by TEM inspection, the concave outer peripheral portion having a negative radius of curvature as viewed from an interior of the particle. Methods for forming the ceramic particulate material are also disclosed.
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