Crystallization of Al2O3/ZrO2 solid solution powders prepared by coprecipitation

被引:36
|
作者
Hong, JS
De la Torre, SD
Miyamoto, K
Miyamoto, H
Gao, L
机构
[1] Technol Res Inst Osaka Prefecture, Osaka 59002, Japan
[2] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
关键词
crystallization; Al2O3/ZrO2; powders; coprecipitation;
D O I
10.1016/S0167-577X(98)00057-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A co-precipitation method has been used to prepare Al2O3/20 mol% ZrO2 powders from aqueous solutions of aluminum chloride and zirconium oxychloride followed by coprecipitation with an ammonia solution. X-ray diffraction analysis shows that the starting powder has the bayerite (Al(OH)(3)) crystalline structure, transforming to single-phase gamma-Al2O3/ZrO2 solid solution (ss) after dehydration. As the temperature is increased, the solid solution experiences a series of partitioning and transformation processes as presented in this paper. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:6 / 9
页数:4
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