MICROSTRUCTURE OF 96-PERCENT ALUMINA CERAMICS .2. CRYSTALLIZATION OF HIGH-MAGNESIA BOUNDARY GLASSES

被引：30

作者：

POWELLDOGAN, CA

HEUER, AH

机构：

[1] Department of Materials Science and Engineering, Case Western Reserve University, Cleveland, Ohio

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 12期

关键词：

D O I：

10.1111/j.1151-2916.1990.tb04275.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：

Development of the grain-boundary microstructure with heat treatment at 800-degrees to 1500-degrees-C was examined for a group of 96% Al2O3 ceramics containing a high-MgO boundary phase. Using a combination of analytical and conventional electron microscopy techniques, eight different crystalline phases were detected at the boundaries following annealing. Despite the extensive devitrification, however, a residual glass remained in all samples examined, and is believed to be continuous.

引用

页码：3677 / 3683

页数：7

共 22 条

[1] DIFFERENCES BETWEEN PHASE-TRANSFORMATIONS (EXSOLUTION) IN METALS AND SILICATES [J].