Toughening of carbon fiber/pitch-based carbon matrix composites by microspace control

被引:4
作者
Kimura, S
Matsuo, Y
Tanaka, S
Yasuda, K
Oshida, K
机构
[1] Tokyo Inst Technol, Grad Sch, Dept Met & Ceram Sci, Meguro Ku, Tokyo 1528552, Japan
[2] Nagano Natl Coll Technol, Dept Elect & Comp Sci, Nagano 3818550, Japan
基金
日本学术振兴会;
关键词
carbon/carbon composites; pore; fractal dimension; modal work-of-fracture; toughening;
D O I
10.1016/S0379-6779(01)00534-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A relation between the pore structure and the fracture resistance is examined on carbon fiber/pitch-based carbon matrix composites since pores are considered an important microspace component affecting the fracture behavior in the composites. A part of the pores may lie on a fiber surface so that the bonding force at the fiber/matrix interface is varied depending on the size and the spatial distributions of the pores. The change in the bonding force distribution brings a large-scale fiber pullout process into the composites. Therefore, the fracture resistance can be improved by controlling the microspace of the composites. (C) 2001 Published by Elsevier Science B.V.
引用
收藏
页码:213 / 221
页数:9
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