Microstructure and Mechanical Properties of Si3N4 Composites Containing SiC Platelet

被引:0
作者
Tao WEI
Yu ZHOU Tingquan LEI and Yujin WANG (School of Materials Science and Engineering
机构
关键词
SiC; Microstructure and Mechanical Properties of Si3N4 Composites Containing SiC Platelet; MPa;
D O I
暂无
中图分类号
O613.72 [硅Si];
学科分类号
070301 ; 081704 ;
摘要
Hoppressed Si3N4/SiC platelet composites had been investigated with respect to their microstructure and mechanical properties. The results indicate that Vickers hardness, elastic modulus and fracture toughness of the composites were increased by the addition of SiC platelet until the content up to 20 vol pct. A slight decrease in flexural Strength was measured at room temperature with increasing SiC platelet content. The high temperature flexural strength tests at 1150, 1250, and 1350℃ were conducted. It was found that the flexural strength at elevated temperature was degraded with the rising temperature, and the downward trend of flexural strength for the composite containing 10 vol. pct SiC platelet was less. The results indicate that SiC platelet had a positive influence on the high temperature strength. Effects of SiC platelet reinforcement were presented
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页码:151 / 155
页数:5
相关论文
共 2 条
  • [1] Transient creep behaviour of hot isostatically pressed silicon nitride[J] . S. M. Wiederhorn,B. J. Hockey,D. C. Cranmer,R. Yeckley.Journal of Materials Science . 1993 (2)
  • [2] S.R.Chio and J.A.Salem: J. inter. Sci . 1992