脱合金化制备纳米多孔金过程中的体积变化

Volume change during the formation of nanoporous gold by dealloying.

作者信息

Parida S, Kramer D, Volkert C A, Rösner H, Erlebacher J, Weissmüller J

机构信息

Forschungszentrum Karlsruhe, Karlsruhe, Germany.

出版信息

Phys Rev Lett. 2006 Jul 21;97(3):035504. doi: 10.1103/PhysRevLett.97.035504. Epub 2006 Jul 20.

DOI:10.1103/PhysRevLett.97.035504

PMID:16907511

Abstract

We report a macroscopic shrinkage by up to 30 vol % during electrochemical dealloying of Ag-Au. Since the original crystal lattice is maintained during the process, we suggest that the formation of nanoporous gold in our experiments is accompanied by the creation of a large number of lattice defects and by local plastic deformation.

摘要

我们报道了在Ag-Au的电化学脱合金过程中宏观收缩率高达30体积%。由于在此过程中原晶格得以保持，我们认为在我们的实验中纳米多孔金的形成伴随着大量晶格缺陷的产生以及局部塑性变形。