Influence of Alloy Composition and Dealloying Solution on the Formation and Microstructure of Monolithic Nanoporous Silver through Chemical Dealloying of Al―Ag Alloys
作者： Xiaoguang Wang , Zhen Qi , Changchun Zhao , Weimin Wang , Zhonghua Zhang
DOI: 10.1021/JP902490U
关键词:
摘要: We present a facile and effective route to fabricate monolithic nanoporous silver (NPS) ribbons through chemical dealloying of melt-spun Al−Ag alloys comprising α-Al(Ag) Ag2Al under free corrosion conditions. The microstructure the NPS was characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM), energy dispersive analysis (EDX). experimental results show that alloy composition solution have significant influence on process formation NPS. with 15−40 atom % Ag can be fully dealloyed in 5 wt HCl solution, but minor amount undealloyed detected as-dealloyed from Al-45 50 alloys. existence supply penetration paths for promote two-phase Moreover, synergetic fast ...
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