发明名称 |
Preparation of mixed powders |
摘要 |
A method of preparing a mixture of zirconia and a stabilising agent for the zirconia comprises milling an aqueous suspension of particulate zirconia and particulate stabilising agent in a bead mill for at least 2 minutes in the presence of a particulate mixing medium having an average particle size from 0.2 mm to 3 mm. Preferred stabilising agents are oxides of yttrium, cerium, calcium or magnesium. Surprisingly, ceramics prepared from the product mixture are more resistant to degradation by attack from water above 100 DEG C than are ceramics prepared from coprecipitated powders. |
申请公布号 |
AU5384494(A) |
申请公布日期 |
1994.08.18 |
申请号 |
AU19940053844 |
申请日期 |
1994.01.18 |
申请人 |
TIOXIDE SPECIALTIES LIMITED |
发明人 |
MARK STEPHEN METCALFE;ALAN DIXON |
分类号 |
B01F3/18;B01F7/00;B01J13/00;C01G25/02;C04B35/486 |
主分类号 |
B01F3/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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