发明公开
- 专利标题： CERAMIC PARTICULATE MATERIAL AND PROCESSES FOR FORMING SAME
- 专利标题（中）： 颗粒状的陶瓷材料及其制造方法
-
申请号： EP08713764.2申请日： 2008-01-15
-
公开(公告)号： EP2118011A2公开(公告)日： 2009-11-18
- 发明人: BAUER, Ralph , HAERLE, Andrew G. , YENER, Doruk O. , THERON, Claire , KAVANAUGH, Michael D.
- 申请人： Saint-Gobain Ceramics & Plastics, Inc.
- 申请人地址： 1 New Bond Street, Box Number 15138 Worcester, MA 01615-0138 US
- 专利权人： Saint-Gobain Ceramics & Plastics, Inc.
- 当前专利权人： Saint-Gobain Ceramics & Plastics, Inc.
- 当前专利权人地址： 1 New Bond Street, Box Number 15138 Worcester, MA 01615-0138 US
- 代理机构： Zimmermann & Partner
- 优先权： US884925P 20070115
- 国际公布： WO2008089177 20080724
- 主分类号： C01F7/02
- IPC分类号： C01F7/02 ; C01F7/44
摘要：
Ceramic particulate material includes alumina particles, the particles having a specific surface area (SSA) not less than 15 m
2 /g and not greater that 75m
2 /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.
2 /g and not greater that 75m
2 /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.
公开/授权文献
- EP2118011B1 CERAMIC PARTICULATE MATERIAL AND PROCESSES FOR FORMING SAME 公开/授权日：2016-08-31
信息查询
IPC分类:
