MECHANISM OF GRAIN-GROWTH OF BETA-SIALON

被引：26

作者：

EINARSRUD, MA ^{[1
]}

MITOMO, M ^{[1
]}

机构：

[1] NATL INST RES INORGAN MAT,TSUKUBA,IBARAKI 305,JAPAN

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1993年 / 76卷 / 06期

关键词：

D O I：

10.1111/j.1151-2916.1993.tb03953.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 mechanism for grain growth of beta-SiAlON has been investigated by annealing high-density beta-SiAlON-YAG materials at 1650-degrees-C. An observed decrease in grain growth with increasing weight fraction of liquid confirms a diffusion-controlled growth mechanism in the system. The grain-growth mechanism is further characterized by the development of large elongated grains in addition to smaller grains. After prolonged heating, an equilibrium maximum grain size is developed causing a homogenization of the microstructure.

引用

页码：1624 / 1626

页数：3

共 7 条

[1]

GERMAN RM, 1985, LIQUID PHASE SINTERI, P133

[2]

Hohnke H., 1983, Progress in Nitrogen Ceramics. Proceedings of the NATO Advanced Study Institute, P101

[3]

HWANG CJ, 1989, MATER SCI FORUM, V47, P84

[4] MECHANISM OF GRAIN-GROWTH AND ALPHA-BETA'-TRANSFORMATION DURING LIQUID-PHASE SINTERING OF BETA'-SIALON [J].