The effect of intragranular microstress in Al2O3-SiC nanocomposites

被引：0
|
作者：
王志远 [1 ,2 ]
吴裕功 [1 ,2 ]
佟帅 [1 ,2 ]
吴斯骐 [1 ,2 ]
机构：
[1] School of Electronic and Information Engineering,Tianjin University
[2] Key Laboratory of Advanced Ceramics and Machining Technology,Ministry of Education(Tianjin University)
来源：
Chinese Physics B | 2012年 / 21卷 / 06期
关键词：
nanocomposite; grain boundary strengthening; internal stress; weakening;
D O I：
暂无
中图分类号：
O482.1 [力学性质与声学性质];
学科分类号：
070205 ; 0805 ; 080502 ; 0809 ;
摘要：
A theoretical model is established to investigate the intragranular particle residual stress in Al2O3-SiC nanocomposites.Using this model,we calculate the average compressive stress on the Al2O3 grain boundary(GB) and the average tensile stress within Al2O3 grains caused by SiC nanoparticles.The normal compressive stress strengthens the GB,and the average tensile stress weakens the grains.The model gives a reasonable interpretation of the strength changes of Al2O3-SiC nanocomposites with the number of SiC particles.
引用
收藏
页码：403 / 407
页数：5
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