IMR OpenIR
Defects evolution in nanoporous Au(Pt) during dealloying
Gao, Panpan; Zhu, Zhejie; Ye, Xinglong; Wu, Yichu; Jin, Haijun; Volinsky, Alex A.; Qiao, Lijie; Su, Yanjing; volinsky@usf.edu; yjsu@ustb.edu.cn
2016
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Volume113Pages:68-70
AbstractThe vacancies and small voids evolution within the ligaments of nanoporous (np) Au(Pt) in dealloying processes were investigated by positron annihilation spectroscopy. The np Au(Pt) samples with 5-8 nm ligaments were prepared by electrochemical dealloying of (Au0.95Pt0.05)(25)Ag-75 ingots. The positron lifetime of as-prepared np Au(Pt) consists of the two main components. One is assigned to the positron annihilation at vacancies within the nano-ligaments and the other to the positron annihilation in the enclosed voids in the ligaments. Vacancy concentration increased significantly when silver atoms leached out further from the np structure, which supports the vacancy-mediated lattice diffusion mechanism of porosity evolution. (C) 2015 Elsevier Ltd. All rights reserved.
description.department[gao, panpan ; qiao, lijie ; su, yanjing] univ sci & technol beijing, key lab environm fracture moe, ctr corros & protect, beijing 100083, peoples r china ; [zhu, zhejie ; wu, yichu] wuhan univ, sch phys & technol, hubei nucl solid phys key lab, wuhan 430072, peoples r china ; [ye, xinglong ; jin, haijun] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china ; [volinsky, alex a.] univ s florida, dept mech engn, tampa, fl 33620 usa
KeywordNanoporous Gold Positron Annihilation Vacancy Defects
Funding OrganizationNational Basic Research Program of China [2012CB937502]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74708
Collection中国科学院金属研究所
Corresponding Authorvolinsky@usf.edu; yjsu@ustb.edu.cn
Recommended Citation
GB/T 7714
Gao, Panpan,Zhu, Zhejie,Ye, Xinglong,et al. Defects evolution in nanoporous Au(Pt) during dealloying[J]. SCRIPTA MATERIALIA,2016,113:68-70.
APA Gao, Panpan.,Zhu, Zhejie.,Ye, Xinglong.,Wu, Yichu.,Jin, Haijun.,...&yjsu@ustb.edu.cn.(2016).Defects evolution in nanoporous Au(Pt) during dealloying.SCRIPTA MATERIALIA,113,68-70.
MLA Gao, Panpan,et al."Defects evolution in nanoporous Au(Pt) during dealloying".SCRIPTA MATERIALIA 113(2016):68-70.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Gao, Panpan]'s Articles
[Zhu, Zhejie]'s Articles
[Ye, Xinglong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Gao, Panpan]'s Articles
[Zhu, Zhejie]'s Articles
[Ye, Xinglong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Gao, Panpan]'s Articles
[Zhu, Zhejie]'s Articles
[Ye, Xinglong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.