发明申请
US20120295113A1 METHOD FOR PRODUCING ZIRCONIA-ALUMINA COMPOSITE CERAMIC MATERIAL, ZIRCONIA-ALUMINA COMPOSITE GRANULATED POWDER, AND ZIRCONIA BEADS
审中-公开
生产氧化锆复合陶瓷材料的方法，ZIRCONIA-ALUMINA复合粉碎粉末和ZIRCONIA BEADS
- 专利标题： METHOD FOR PRODUCING ZIRCONIA-ALUMINA COMPOSITE CERAMIC MATERIAL, ZIRCONIA-ALUMINA COMPOSITE GRANULATED POWDER, AND ZIRCONIA BEADS
- 专利标题（中）： 生产氧化锆复合陶瓷材料的方法，ZIRCONIA-ALUMINA复合粉碎粉末和ZIRCONIA BEADS
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申请号： US13519554申请日： 2010-12-24
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公开(公告)号： US20120295113A1公开(公告)日： 2012-11-22
- 发明人: Naoki Kurizoe , Yasuhiko Suehiro , Hideo Nakanishi
- 申请人： Naoki Kurizoe , Yasuhiko Suehiro , Hideo Nakanishi
- 优先权： JP2009298653 20091228; JP2010238395 20101025
- 国际申请： PCT/JP2010/073421 WO 20101224
- 主分类号： C04B35/626
- IPC分类号： C04B35/626 ; C04B35/48
摘要：
The present invention produces a zirconia-alumina composite ceramic material that exhibits an excellent wear resistance and hardness and that resists chipping at the particle edges. The zirconia-alumina composite ceramic material according to the present invention has a composite structure in which zirconia particles are dispersed in alumina particles and the alumina particles are dispersed in the zirconia particles. A first phase is formed of ceria-containing zirconia particles and a second phase is formed of alumina particles. An α-alumina powder having an average particle size of at least 0.1 μm and a γ-alumina powder having an average particle size of 0.01 to 0.1 μm are used in a proportion of 85:15 to 65:35 as the mass ratio for the alumina powder for producing the alumina particles of the second phase.
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