Effect of Mg-Cu alloy composition on morphology of nanoporous copper prepared by dealloying

	Effect of Mg-Cu alloy composition on morphology of nanoporous copper prepared by dealloying
	Zhou, Qi; Zhou, Quan; Zang, Shu-Jun; Zheng, Bin
刊名	Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy
	2015-08-01
卷号	20 期号:4 页码:603-608
关键词	Alloying Atoms Copper Corrosion Magnesium Morphology Quenching Rapid quenching Alloy compositions Atom fractions Chemical dealloying De-alloying Induction melting Micromorphologies Nano-porous coppers Porous structures
ISSN号	16730224
英文摘要	Nanoporous copper (NPC) could be synthesized by self corrosion dealloying with Mg-Cu alloy. Prepared by rapid quenching and induction melting the phases and microstructure of samples were analyzed by XRD and SEM. The effect of initial alloy composition on micromorphology of nanoporous Cu and the synergetic dealloying of Mg2Cu and MgCu2was investigated. The experimental results of chemical dealloying of these Mg-Cu alloys show that nanoporous Cu with bicontinuous ligament structures can be obtained as the atom fraction of initial Cu decreases from 60% to 33% in corrosion solution, except for alloys with Cu of 67% atom fraction, which is composed of a single MgCu2phase. For alloys with Cu of 50% atom fraction, porous structures can be obtained with more uniform bicontinuous ligament-structure nanoporous copper, with the size of nanopore from 60 to 80 nm and the size of ligaments from 50 to 80 nm. Mg2Cu is an essential condition for formation of the bicontinuous ligament structures. The synergetic dealloying of Mg2Cu and MgCu2in the two-phase Mg-Cu alloys results in the morphologies of NPC with uniform bicontinuous ligament structure. ©, 2015, Central South University. All right reserved.
语种	中文
出版者	Central South University
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150340]
专题	材料科学与工程学院
作者单位	College of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China
推荐引用方式 GB/T 7714	Zhou, Qi,Zhou, Quan,Zang, Shu-Jun,et al. Effect of Mg-Cu alloy composition on morphology of nanoporous copper prepared by dealloying[J]. Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy,2015,20(4):603-608.
APA	Zhou, Qi,Zhou, Quan,Zang, Shu-Jun,&Zheng, Bin.(2015).Effect of Mg-Cu alloy composition on morphology of nanoporous copper prepared by dealloying.Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy,20(4),603-608.
MLA	Zhou, Qi,et al."Effect of Mg-Cu alloy composition on morphology of nanoporous copper prepared by dealloying".Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy 20.4(2015):603-608.