Influence of silica content on liquid phase sintering of silicon carbide with yttrium-aluminum garnet

被引：15
|
作者：
Kim, YW
Mitomo, M
Lee, JG
机构：
[1] NATL INST RES INORGAN MAT, TSUKUBA, IBARAKI 305, JAPAN
[2] KOREA INST SCI & TECHNOL, DIV CERAM, SEOUL 130650, SOUTH KOREA
来源：
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 1996年 / 104卷 / 09期
关键词：
silicon carbide; oxidation; liquid phase; sintering; silica;
D O I：
10.2109/jcersj.104.816
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：
Densification of SiC with oxide additives is affected mainly bg the amounts of free C and SiO2 contained in the starting powders. In this study, the influence of oxidation of starting powders on densification was investigated. Oxidation of SiC powders, prior to liquid phase sintering, increased the oxygen content and decreased the carbon content remarkably, and led to higher sintered density for both alpha- and beta-Sic. Higher sintered density was attributed to the formation of liquid at lower temperatures and the suppression of reactions between the free C and oxide additives.
引用
收藏
页码：816 / 818
页数：3
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