Mechanical properties of Si3N4/BN fibrous monolithic ceramics at elevated-temperature

被引:3
|
作者
Li, SQ [1 ]
Huang, Y [1 ]
Wang, CG [1 ]
Zan, QF [1 ]
Li, CW [1 ]
机构
[1] Tsing Hua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
基金
美国国家科学基金会; 中国国家自然科学基金;
关键词
D O I
10.1023/A:1017936014726
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The mechanical properties at high temperature of Si3N4/BN fibrous monolithic ceramics were tested. The flexural strength of SiC whisker reinforced Si3N4/BN fibrous monolithic ceramics from 25 degreesC to 1200 degreesC were investigated. The strength degraded slowly from 1000 degreesC to 1200 degreesC which was different to Si3N4 monolithic ceramics. The creep behaviors of the material at different temperatures were characterized. Si3N4/BN fibrous monolithic ceramics possess high creep resistance. The chemical composition and microstructure of the composites were analyzed by XRD and SEM. (C) 2001 Kluwer Academic Publishers.
引用
收藏
页码:4103 / 4106
页数:4
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