Elevated temperature strengthening of synthesized in situ MoSi2-SiC composite

被引：0
|
作者：
Sun, ZQ [1 ]
Zhang, LQ
Yang, WY
Fu, XW
机构：
[1] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China
[2] Univ Sci & Technol Beijing, Inst Mat Sci & Engn, Beijing 100083, Peoples R China
来源：
ACTA METALLURGICA SINICA | 2001年 / 37卷 / 04期
关键词：
MoSi2-SiC composite; synthesized in situ; interphase barrier strengthening; compressive test at elevated temperature;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The effects of SiC volume fraction on yield strength and flow stress of synthesized MoSi2-SiC composite synthesized within the temperature range between 1000 and 1400 degreesC were investigated by compressive tests. The results show that the high temperature strength of the composite is significantly higher than that of monolithic MoSi2. With increasing SiC volume fraction, the yield strength and flow stress of composite increase. The relationship between yield strength sigma (y) and interparticle spacing lambda (s) follows equation as sigma (y) = sigma (0) + k lambda (-1/2)(s). It is suggested that increase in strength at elevated temperature is resulted from interphase strengthening.
引用
收藏
页码：369 / 372
页数：4
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