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
	2015-08-01
发表期刊	Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy
ISSN	16730224
卷号	20 期号:4 页码:603-608
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.
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
收录类别	EI
语种	中文
出版者	Central South University
EI入藏号	20154301433933
EI主题词	Copper alloys
EI分类号	531.1 Metallurgy ; 537.1 Heat Treatment Processes ; 542.2 Magnesium and Alloys ; 544.1 Copper ; 544.2 Copper Alloys ; 931.3 Atomic and Molecular Physics ; 951 Materials Science
文献类型	期刊论文
条目标识符	https://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
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
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.