Effect of in situ grown carbon nanotubes on the structure and mechanical properties of unidirectional carbon/carbon composites

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	Effect of in situ grown carbon nanotubes on the structure and mechanical properties of unidirectional carbon/carbon composites
	P. Xiao; X. F. Lu; Y. Q. Liu; L. L. He
	2011
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	528 期号:7-8 页码:3056-3061
摘要	Preforms containing carbon nanotubes (CNTs) were fabricated by in situ grown in unidirectional carbon cloths, and densified by chemical vapor infiltration (CVI) to prepare CNT reinforced C/C composites (CNT-C/C composites). The density change of obtained composites during CV! was investigated. The results show that densification rate of CNT-C/C composites is higher than that of pure C/C composite. Densification rate has the maximum value when the CNT content is 5 wt%. Polarized-light optical microscopy, SEM and TEM were used to analyze the effect of CNTs on the structure of obtained composites. The results show that the existence of CNTs can not only contribute to the formation of high-textured pyrolytic carbon, but also increase the number of interfaces and form the complicated interface in C/C composites. This structure change leads to higher flexural properties of CNT-C/C composites than that of pure C/C composite. (C) 2010 Elsevier B.V. All rights reserved.
部门归属	[xiao peng; lu xue-feng] cent s univ, state key lab powder met, changsha 410083, peoples r china. [liu yequn; he lianlong] chinese acad sci, inst met res, shenyang 110016, peoples r china.;lu, xf (reprint author), cent s univ, state key lab powder met, changsha 410083, peoples r china;sandylxf@tom.com
关键词	Carbon Nanotubes Carbon/carbon Composites Grown In Situ Interface Structure Chemical-vapor Infiltration Pyrolytic Carbon Deposition Pyrocarbon Morphology
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WOS记录号	WOS:000288297300005
引用统计	被引频次：67[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30784
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	P. Xiao,X. F. Lu,Y. Q. Liu,et al. Effect of in situ grown carbon nanotubes on the structure and mechanical properties of unidirectional carbon/carbon composites[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2011,528(7-8):3056-3061.
APA	P. Xiao,X. F. Lu,Y. Q. Liu,&L. L. He.(2011).Effect of in situ grown carbon nanotubes on the structure and mechanical properties of unidirectional carbon/carbon composites.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,528(7-8),3056-3061.
MLA	P. Xiao,et al."Effect of in situ grown carbon nanotubes on the structure and mechanical properties of unidirectional carbon/carbon composites".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 528.7-8(2011):3056-3061.