Control of fracture behavior of carbon fiber/pitch-based carbon matrix composites with microspace modification concept

被引：0
|
作者：
Kimura, S
Yasuda, K
Matsuo, Y
Hotta, A
机构：
[1] Yamanashi Univ, Fac Engn, Inst Inorgan Synth, Kofu, Yamanashi 400, Japan
[2] Tokyo Inst Technol, Fac Engn, Dept Inorgan Mat, Tokyo 152, Japan
来源：
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 1999年 / 15卷 / 05期
关键词：
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Theoretical consideration was conducted on a relation between pore diameter and interfacial area between pores and fibers when pores uniformly distribute in C/C composites. It was shown that bonding at the fiber/matrix interface apparently decreased with decreasing a pore diameter, and consequently a new idea of microspace modification concept was proposed for controlling fracture behavior of C/C composites. Four types of C/C composites with various pore structures were fabricated by hot-pressing, and their fracture behavior was investigated by three point bending tests. The fracture behavior of the C/C composites was changed from brittle one to pseudo ductile one with decreasing the pore diameter. This result supported the validity of the microspace modification concept proposed in this paper.
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页码：393 / 399
页数：7
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