Effect of Carbon Nanotube Orientation on Mechanical Properties and Thermal Expansion Coefficient of Carbon Nanotube-Reinforced Aluminum Matrix Composites

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	Effect of Carbon Nanotube Orientation on Mechanical Properties and Thermal Expansion Coefficient of Carbon Nanotube-Reinforced Aluminum Matrix Composites
	Z. Y. Liu; B. L. Xiao; W. G. Wang; Z. Y. Ma
	2014
发表期刊	Acta Metallurgica Sinica-English Letters
ISSN	1006-7191
卷号	27 期号:5 页码:901-908
摘要	Carbon nanotube-reinforced 2009A1 (CNT/2009A1) composites with randomly oriented CNTs and aligned CNTs were fabricated by friction stir processing (FSP) and FSP-rolling, respectively. The CNT/2009A1 coniposites with aligned CNTs showed much better tensile properties at room temperature and elevated temperature compared with those with the randomly oriented CNTs, which is mainly attributed to larger equivalent aspect ratio of the CNTs and avoidance of preferential fracture problems. However, much finer grain size was not beneficial to obtaining high strength above 473 K. The aligned CNTs resulted in tensile anisotropy, with the best tensile properties being achieved along the direction of CNT aligning. As the off-axis angle increased, the tensile properties were reduced due to the weakening of the load transfer ability. Furthermore, aligned CNTs resulted in much lower coefficient of thermal expansion compared with randomly oriented CNTs.
部门归属	[liu, z. y.] dalian univ technol, sch mat sci & engn, dalian 116024, peoples r china. [liu, z. y. ; xiao, b. l. ; ma, z. y.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [wang, w. g.] liaoning shihua univ, sch mech engn, fushun 113001, peoples r china. ; ma, zy (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. ; zyma@imr.ac.cn
关键词	Carbon Nanotubes Metal Matrix Composites Mechanical Properties Coefficient Of Thermal Expansion Friction Stir Processing Nanocomposites Technology Extrusion Powders Science
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73323
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. Y. Liu,B. L. Xiao,W. G. Wang,et al. Effect of Carbon Nanotube Orientation on Mechanical Properties and Thermal Expansion Coefficient of Carbon Nanotube-Reinforced Aluminum Matrix Composites[J]. Acta Metallurgica Sinica-English Letters,2014,27(5):901-908.
APA	Z. Y. Liu,B. L. Xiao,W. G. Wang,&Z. Y. Ma.(2014).Effect of Carbon Nanotube Orientation on Mechanical Properties and Thermal Expansion Coefficient of Carbon Nanotube-Reinforced Aluminum Matrix Composites.Acta Metallurgica Sinica-English Letters,27(5),901-908.
MLA	Z. Y. Liu,et al."Effect of Carbon Nanotube Orientation on Mechanical Properties and Thermal Expansion Coefficient of Carbon Nanotube-Reinforced Aluminum Matrix Composites".Acta Metallurgica Sinica-English Letters 27.5(2014):901-908.