MORPHOLOGY OF PLATELIKE ABNORMAL GRAINS IN LIQUID-PHASE-SINTERED ALUMINA

被引：88

作者：

SONG, H ^{[1
]}

COBLE, RL ^{[1
]}

机构：

[1] MIT,DEPT MAT SCI & ENGN,CAMBRIDGE,MA 02139

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 07期

关键词：

alumina; grain boundaries; liquid phase; morphology; sintering;

D O I：

10.1111/j.1151-2916.1990.tb05272.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：

The microstructural features of platelike grains in liquid‐phase‐sintered Al2O3 were investigated. The flat boundaries of platelike grains wetted with a liquid phase were basal planes. After impingement of platelike grains, flat boundaries progressively changed to curved boundaries which consisted of both basal and rhombohedral planes as microscopic facets. Second‐phase particles were observed for most doped samples. Small‐angle subgrain boundaries inside platelike grains were also observed. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：2086 / 2090

页数：5

共 10 条

[1]

Buist D.S., 1965, BRIT CERAM T, V64, P173

[2] GRAIN-BOUNDARY MICROSTRUCTURES IN A LIQUID-PHASE SINTERED ALUMINA (ALPHA-AL2O3) [J].