Ultrahigh strength and high electrical conductivity in copper

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	Ultrahigh strength and high electrical conductivity in copper
	L. Lu; Y. F. Shen; X. H. Chen; L. H. Qian; K. Lu
	2004
发表期刊	Science
ISSN	0036-8075
卷号	304 期号:5669 页码:422-426
摘要	Methods used to strengthen metals generally also cause a pronounced decrease in electrical conductivity, so that a tradeoff must be made between conductivity and mechanical strength. We synthesized pure copper samples with a high density of nanoscale growth twins. They showed a tensile strength about 10 times higher than that of conventional coarse-grained copper, while retaining an electrical conductivity comparable to that of pure copper. The ultrahigh strength originates from the effective blockage of dislocation motion by numerous coherent twin boundaries that possess an extremely low electrical resistivity, which is not the case for other types of grain boundaries.
部门归属	chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;lu, k (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;lu@imr.ac.cn
关键词	Nanocrystalline Copper Resistivity Ductility Behavior Nickel Cu
URL	查看原文
WOS记录号	WOS:000220845400043
引用统计	被引频次：2581[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/321006/35481
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Lu,Y. F. Shen,X. H. Chen,et al. Ultrahigh strength and high electrical conductivity in copper[J]. Science,2004,304(5669):422-426.
APA	L. Lu,Y. F. Shen,X. H. Chen,L. H. Qian,&K. Lu.(2004).Ultrahigh strength and high electrical conductivity in copper.Science,304(5669),422-426.
MLA	L. Lu,et al."Ultrahigh strength and high electrical conductivity in copper".Science 304.5669(2004):422-426.