PROCESSING AND SINTERING OF ULTRAFINE MGO-ZRO2 AND (MGO,Y2O3)-ZRO2 POWDERS

被引：128

作者：

READEY, MJ ^{[1
]}

LEE, RR ^{[1
]}

HALLORAN, JW ^{[1
]}

HEUER, AH ^{[1
]}

机构：

[1] CASE WESTERN RESERVE UNIV,DEPT MAT SCI & ENGN,CLEVELAND,OH 44106

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 06期

关键词：

agglomerates; coprecipitation; processing sintering; zirconia;

D O I：

10.1111/j.1151-2916.1990.tb09786.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Chemical coprecipitation was used to produce ultrafine and easily sinterable MgO‐stabilized and (MgO, Y2O3) stabilized ZrO2 powders. The sintering behavior is very sensitive to post‐precipitation washing because “hard” agglomerates form when the precipitated gels are washed with water, whereas “soft” agglomerates form when they are washed with ethanol. The soft agglomerates pack uniformly, resulting in homogeneous shrinkage of powder compacts to near‐theoretical density. The hard agglomerates result in compacts which have regions of localized densification and a signifiint fraction of residual porosity. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：1499 / 1503

页数：5

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