Synthesis and tensile property of nanocrystalline metal copper

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	Synthesis and tensile property of nanocrystalline metal copper
	X. J. Wu; L. G. Du; H. F. Zhang; J. F. Liu; Y. S. Zhou; Z. Q. Li; L. Y. Xiong; Y. L. Bai
	1999
发表期刊	Nanostructured Materials
ISSN	0965-9773
卷号	12 期号:1-4 页码:221-224
摘要	A large disk-shaped specimen of nanocrystalline metal copper, with a diameter of 80 mm and thickness 5 mm, was synthesized by an inert gas condensation and insitu warm compacting technique. The grain size and density of the specimen are 36 nm and 94.3 % of standard density, respectively The positron lifetime and intensity were measured for monitoring the defects in the specimen. The results indicated that the size and amount of the vacancies and microvoids in the large specimen are close to that found in the small specimens of other nanostructured materials prepared by the same technique. The tensile stress-strain curve has been precisely measured by using the load cell and foil strain gauge. The results showed that the elastic modulus, yield stress, fracture strength, elongation and mirohardness are 0.65, 1.42, 1.82, 0.20 and 6 times of that for coarse-grained polycrystalline metal copper, respectively. (C) 1999 Acta Metallurgica Inc.
部门归属	zhejiang univ, dept mat sci & engn, hangzhou 310027, peoples r china. acad sinica, inst mech, lab nonlinear mech continuous media, beijing 100080, peoples r china. acad sinica, inst met res, shenyang 110015, peoples r china.;wu, xj (reprint author), zhejiang univ, dept mat sci & engn, hangzhou 310027, peoples r china
关键词	Positron Lifetime Spectroscopy Mechanical-behavior Iron
URL	查看原文
WOS记录号	WOS:000081912100050
引用统计	被引频次：27[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/321006/37534
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. J. Wu,L. G. Du,H. F. Zhang,et al. Synthesis and tensile property of nanocrystalline metal copper[J]. Nanostructured Materials,1999,12(1-4):221-224.
APA	X. J. Wu.,L. G. Du.,H. F. Zhang.,J. F. Liu.,Y. S. Zhou.,...&Y. L. Bai.(1999).Synthesis and tensile property of nanocrystalline metal copper.Nanostructured Materials,12(1-4),221-224.
MLA	X. J. Wu,et al."Synthesis and tensile property of nanocrystalline metal copper".Nanostructured Materials 12.1-4(1999):221-224.