Geometric relaxation of nanoporous metals: The role of surface relaxation

被引：76

作者：

Crowson, Douglas A. ^{[1
]}

Farkas, Diana ^{[1
]}

Corcoran, Sean G. ^{[1
]}

机构：

[1] Virginia Polytech Inst & State Univ, Dept Mat Sci & Engn, Blacksburg, VA 24061 USA

来源：

SCRIPTA MATERIALIA | 2007年 / 56卷 / 11期

基金：

美国国家科学基金会;

关键词：

porous material; surface structure; simulation;

D O I：

10.1016/j.scriptamat.2007.02.017

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Atomic scale computer simulations are used to probe the dominant mechanisms for the geometric relaxation of bicontinuous nanoporous (np) metals. We utilize a method for creating digital samples amenable to atomic simulations that are quantitatively similar to those prepared experimentally. Simulated relaxations of these structures, as well as the relaxation of model spherical clusters, indicate that the surface relaxation effect dominates the overall dimensional relaxation of np-metals post processing. Capillary effects play a secondary role in the overall relaxation. (C) 2007 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.

引用

页码：919 / 922

页数：4

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