Monolithic nanoporous copper by dealloying Mn-Cu

被引：275

作者：

Hayes, J. R. ^{[1
]}

Hodge, A. M.

Biener, J.

Hamza, A. V.

Sieradzki, K.

机构：

[1] Lawrence Livermore Natl Lab, Chem & mat Sci Directorate, Livermore, CA 94546 USA

[2] Arizona State Univ, Dept Chem & Mat Sci, Tempe, AZ 85287 USA

来源：

JOURNAL OF MATERIALS RESEARCH | 2006年 / 21卷 / 10期

关键词：

D O I：

10.1557/JMR.2006.0322

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Monolithic nanoporous copper was synthesized by dealloying Mn0.7Cu0.3 by two distinct methods: potentiostatically driven dealloying and free corrosion. Both the ligament size and morphology were found to be highly dependent on the dealloying methods and conditions. For example, ligaments from 16 nm-125 nm were obtained by dealloying either electrochemically or by free corrosion, respectively. Optimization of the starting Mn-Cu alloy microstructure allowed us to synthesize uniform porous structures; but we found cracking to be unavoidable. Despite the presence of unavoidable defects, the narroporous material still exhibits higher than expected yield strength.

引用

页码：2611 / 2616

页数：6