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Inhomogeneity of the bulk porous silver fabricated by dealloying
LI Zhiqiang,LU Xing *
Liaoning Key Materials Laboratory for Railway, Dalian Jiaotong University
*Correspondence author
#Submitted by
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Funding: Higher Education Doctoral Fund of China （No.20080150002), and Ministry of Education, Liaoning Province government, China）
Opened online: 4 January 2013
Accepted by: none
Citation: LI Zhiqiang,LU Xing.Inhomogeneity of the bulk porous silver fabricated by dealloying[OL]. [ 4 January 2013] http://en.paper.edu.cn/en_releasepaper/content/4508224
 
 
Bulk porous silver was fabricated by the dealloying Ag25Zn75 alloy. EDS and XRD confirmed that zinc atoms have been removed entirely, the residule was only silver, and the crystal structure switches from close-packed hexagonal structure to face-centered cubic during the process of the dealloying, which showes that a phase transition occurrs in the process of dealloying. The desquamation phenomenan presents on the surface of the as-dealloyed sample and volume of sample contracts. The change of the pore size and ligment width from exterior to interior has been also reseached. The formation mechanism of the bulk porous silver was discussed in the end.
Keywords: Ag25Zn75 alloy; dealloying; bulk porous silver
 
 
 

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