期刊
出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2008.10.052
关键词
Carbon/carbon composites; Pyrolytic carbon; Chemical vapor deposition; Scanning electron microscopy; Mechanical properties
类别
资金
- [2006CB600905]
The effect of mass ratio of non-woven cloth to short-cut fiber web of needle-punched felt on the flexural properties of C/C composites was investigated. Results show that the flexural strength and modulus increase when the ratio of non-woven cloth to short-cut fiber web change from 7:3 to 6:4, and then decrease when the ratio of non-woven cloth to short-cut fiber web change from 6:4 through 5:5 to full short-cut fiber web. It can be explained on the base of hybrid fiber composites theory. There exists hybrid synergetic effect in the C/C composites with needle-punched felt as preform, which results in higher strength of C/C composites only when an optimal mass ratio of non-woven cloth to short-cut fiber web was adopted. (C) 2008 Elsevier B.V. All rights reserved.
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