PREPARATION OF SIC-ALN COMPOSITES BY LIQUID-PHASE SINTERING AND THEIR MICROSTRUCTURE

被引：13

作者：

LEE, JK ^{[1
]}

TANAKA, H ^{[1
]}

OTANI, S ^{[1
]}

机构：

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

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 1995年 / 103卷 / 09期

关键词：

SILICON CARBIDE; ALUMINUM NITRIDE; COMPOSITES; LIQUID PHASE SINTERING; MICROSTRUCTURE; 2H SOLID SOLUTION;

D O I：

10.2109/jcersj.103.873

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：

Monolithic SiC and SiC-AlN composites were prepared by liquid-phase sintering, Polytypes of SiC, transformation of its polytypes and microstructure of the sintered materials were investigated. The SiC-AlN composites were composed of the 2H phase with dispersed SiC grains, The microstructure of sintered monolithic SiC varied depending on the polytypes of the starting SiC powders, alpha and beta, as well as on the sintering conditions, The SiC-AlN composites showed the same microstructure irrespective of the initial phase of SiC. The 2H phase was a SiC-AlN solid solution and had a spherical grain shape, and the 4H-SiC had a platelike shape.

引用

页码：873 / 877

页数：5

共 24 条

[1] PHASE-SEPARATION IN THE SIC-ALN PSEUDOBINARY SYSTEM - THE ROLE OF COHERENCY STRAIN-ENERGY [J].