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The structure and mechanical properties of Cu50Ni50 alloy nanofoams formed via polymeric templating

Published online by Cambridge University Press:  11 March 2020

Chang-Eun Kim ,
Raheleh M. Rahimi  and
David F. Bahr
Chang-Eun Kim
Affiliation:
School of Materials Engineering, Purdue University, West Lafayette, IN47906-2045, USA Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA94550, USA
Raheleh M. Rahimi
Affiliation:
School of Materials Engineering, Purdue University, West Lafayette, IN47906-2045, USA
David F. Bahr*
Affiliation:
School of Materials Engineering, Purdue University, West Lafayette, IN47906-2045, USA
*
Address all correspondence to David Bahr at dfbahr@purdue.edu
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Abstract

The authors demonstrate that multicomponent metallic alloy nanofoams can be synthesized by the polymeric templating method. The present approach enabled alloy compositions not accessible via commonly used dealloying or co-deposition methods. The authors report the synthesis of a Cu50Ni50 alloy nanofoam using electrospinning polymeric templating, which exhibits distinct polycrystallinity, process-driven segregation, and enhanced mechanical strength over pure Cu nanofoams. Transmission electron microscopy revealed microscopic grain formation and their variable compositions. The processing method is applicable to the synthesis of a wide range of multicomponent metal porous materials, creating new research opportunities for noble alloy foams not available through wet electrochemical routes.

Type
Research Letters
Information
MRS Communications , Volume 10 , Issue 2 , June 2020 , pp. 286 - 291
Copyright
Copyright © Materials Research Society 2020

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