The fracture behaviors of carbon nanotube and nanoscroll reinforced silicon matrix composites

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	The fracture behaviors of carbon nanotube and nanoscroll reinforced silicon matrix composites
	Chen H(陈浩); Chen SH(陈少华); Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
发表期刊	CARBON
	2014-02
卷号	67 页码:344-351
ISSN	0008-6223
摘要	Fracture properties of both carbon nanotube (CNT) and carbon nanoscroll (CNS) reinforced silicon (Si) matrix composites under tension are investigated by molecular dynamics simulations. It is found that either a single-wall CNT or a multi-wall one (MWCNT) will be pulled out if the length of the CNT is short, while brittle fracture of CNT will happen for a relatively long one. It is interesting to find that the "sword-in-sheath" fracture mode observed experimentally in a long MWCNT reinforced alumina matrix composite is verified well by our simulations. Furthermore, comparing to a CNT reinforced Si matrix composite, fracture toughness of a CNS reinforced one can be significantly enhanced by both the length and the layer of the CNS. Crack in CNS propagates along its circumference and moves inward layer by layer so that large parts of the fracture energy are dissipated. The results provide a direct understanding of the fracture strength observed experimentally and an insight for improving the fracture toughness of some novel composites.
学科领域	固体力学
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000329379300037
项目资助者	National Science Foundation of China [10972220, 11125211, 11021262]; 973 Nano-project [2012CB937500]
课题组名称	LNM仿生材料与固体的微尺度力学
论文分区	一类
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/48255
专题	非线性力学国家重点实验室
通讯作者	Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Chen H,Chen SH,Chen, SH . The fracture behaviors of carbon nanotube and nanoscroll reinforced silicon matrix composites[J]. CARBON,2014,67:344-351.
APA	Chen H,Chen SH,&Chen, SH .(2014).The fracture behaviors of carbon nanotube and nanoscroll reinforced silicon matrix composites.CARBON,67,344-351.
MLA	Chen H,et al."The fracture behaviors of carbon nanotube and nanoscroll reinforced silicon matrix composites".CARBON 67(2014):344-351.

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