OBTENTION OF HIGHLY DISPERSED PLATELET-REINFORCED AL2O3 COMPOSITES

被引：15
作者：
BELMONTE, M
MORENO, R
MOYA, JS
MIRANZO, P
机构：
[1] Instituto de Cerámica y Vidrio, C.S.I.C., Madrid, 28500, Arganda del Rey
来源：
JOURNAL OF MATERIALS SCIENCE | 1994年 / 29卷 / 01期
关键词：
D O I：
10.1007/BF00356591
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The rheological behaviour of alumina/platelets (Al2O3 or SiC) suspensions has been established by measuring zeta potential versus pH and the relative viscosity as a function of pH, solids loading and platelets content. Highly homogeneous mixtures of alumina/platelets, with different platelets content (5, 8, 1 2 and 20 vol %), have been obtained by controlled flocculation at a pH value in the range 6-7. From these powders, very close to theoretical density (greater-than-or-equal-to 99% d(th)) and slightly oriented platelet-reinforced alumina compacts have been obtained by hot pressing at temperatures ranging from 1500-1550-degrees-C.
引用
收藏
页码：179 / 183
页数：5
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