Micro-mechanical properties and morphological observation on fracture surfaces of carbon nanotube composites pre-treated at different temperatures

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	Micro-mechanical properties and morphological observation on fracture surfaces of carbon nanotube composites pre-treated at different temperatures
	K. T. Lau; S. Q. Shi; H. M. Cheng
	2003
发表期刊	Composites Science and Technology
ISSN	0266-3538
卷号	63 期号:8 页码:1161-1164
摘要	In an early stage of the decade, most of works on carbon nanotubes were centred on chemistry and physics. Due to extraordinary mechanical and thermal properties, these nanotubes have been used as nano-fibres for the improvement of the global mechanical properties of advanced composite structures. This paper reports the micro-hardness and flexural properties of nanotube/epoxy composites with different amounts of nanotubes content. Experimental measurements and microscopic observations of the composites pre-treated at different temperatures are discussed in detail. The results show that the hardness of the nanotube composites varied with different nanotube weight fractions. The flexural strength decreased by 10% for a composite beam with 2 wt.% of nanotubes. The fracture surfaces of nanotube composite were perpendicular to the nanotube pre-treated at 70 degreesC, and parallel to nanotubes pre-treated at -180 degreesC. The SEM images also revealed that all nanotubes were completely pulled out after the flexural strength test due to a weak-bonding strength between the nanotube and matrix. (C) 2003 Elsevier Science Ltd. All rights reserved.
部门归属	hong kong polytech univ, dept mech engn, hong kong, hong kong, peoples r china. chinese acad sci, inst met res, shenyang, peoples r china.;lau, kt (reprint author), hong kong polytech univ, dept mech engn, hong kong, hong kong, peoples r china
关键词	Nanostructures Multi-walled Carbon Nanotubes
URL	查看原文
WOS记录号	WOS:000182739600011
引用统计	被引频次：70[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/321006/35877
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	K. T. Lau,S. Q. Shi,H. M. Cheng. Micro-mechanical properties and morphological observation on fracture surfaces of carbon nanotube composites pre-treated at different temperatures[J]. Composites Science and Technology,2003,63(8):1161-1164.
APA	K. T. Lau,S. Q. Shi,&H. M. Cheng.(2003).Micro-mechanical properties and morphological observation on fracture surfaces of carbon nanotube composites pre-treated at different temperatures.Composites Science and Technology,63(8),1161-1164.
MLA	K. T. Lau,et al."Micro-mechanical properties and morphological observation on fracture surfaces of carbon nanotube composites pre-treated at different temperatures".Composites Science and Technology 63.8(2003):1161-1164.