Influence of crack path on crack resistance of brittle matrix composites

被引：0
|
作者：
Wu, S [1 ]
Patterson, BR [1 ]
Ferber, MK [1 ]
Fuller, ER [1 ]
机构：
[1] Univ Alabama, Dept Mech & Mat Engn, Birmingham, AL 35294 USA
来源：
25TH ANNUAL CONFERENCE ON COMPOSITES, ADVANCED CERAMICS, MATERIALS, AND STRUCTURES: A | 2001年 / 22卷 / 03期
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D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Studies on particulate reinforced ceramic composites, mainly glass/Al2O3, have shown pronounced crack path variations with variations in microstructure and loading rate. The variations in path strongly influenced the crack resistance of the composite. For composites where the particles have lower thermal expansion and higher Young's modulus than the matrix, greater crack-particle interactions lead to a decrease in crack resistance. Composites where the particles have higher thermal expansion and higher Young's modulus than the matrix showed increasing crack resistance with increasing crack- particle interaction. A theoretical model was developed to explain the results.
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页码：269 / 276
页数：8
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