Fabrication of nanoporous silver with open pores

Author(s)

Zhang, M. ^{[1, 2]} ; Jorge Junior, A. M. ^{[3, 1]} ; Pang, S. J. ^[2] ; Zhang, T. ^[2] ; Yavari, A. R. ^[1]

Affiliation

^[1] Inst Natl Polytech Grenoble, SIMaP, CNRS UMR 5266, F-38402 St Martin Dheres - France

^[2] Beihang Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Aerosp Mat & Performance, Beijing 100191 - Peoples R China

^[3] Univ Fed Sao Carlos, UFSCar, BR-13560 Sao Carlos, SP - Brazil

• Document type: Journal article
• Source: SCRIPTA MATERIALIA; v. 100, p. 21-23, APR 15 2015.
• Web of Science Citations: 20

Abstract

Nanoporous silver, with an average grain size of 20-40 nm and with asymmetric pores typically of similar to 25 and 100 nm width and length, respectively, was synthesized by dealloying of amorphous Ag-based alloys. Binary and ternary Ag-based alloys were selected to prepare fine duplex or amorphous structures and to then remove the non-Ag phase or elements by a proper selective leaching process. The nanoporous foil-shaped samples show unchanged thicknesses and good mechanical integrity, indicating continuous paths between the two sides of the sample. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 12/13179-6 - Study of amorphous, metastable and nano-structured metallic alloys with emphasis on new technological applications
• Grantee: Alberto Moreira Jorge Junior
• Support Opportunities: Scholarships abroad - Research