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

页码：179 / 183

页数：5

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