Nanoporous Copper-Nickel - Macroscopic bodies of a strong and deformable nanoporous base metal by dealloying

SCRIPTA MATERIALIA

卷:155

Article

Luehrs, Lukas¹  Weissmueller, Joerg^1,2 

[1] Hamburg Univ Technol, Inst Mat Phys & Technol, Hamburg, Germany

[2] Helmholtz Zentrum Geesthacht, Inst Mat Res, Mat Mech, Geesthacht, Germany

关键词: Nanoporous base metal;    Mechanical properties;    Nanostructure;    Porous material;    Mesoporous metal;   

DOI  :  10.1016/j.scriptamat.2018.06.025

来源: Elsevier

【 摘 要 】

Uniform macroscopic samples of nanoporous metal with high deformability have so far been limited to precious metals such as Au, Pd and Pt. Here we propose nanoporous Copper-Nickel (npCN) as a nanoporous base metal that can be made with mm dimensions and exhibits significant deformability. NpCN forms a uniform bicontinous network structure with feature sizes that can be controlled from 13 to 40 nm by thermal annealing. Continuous compression tests confirm ductile deformation behavior accompanied with a high strength compared to macroporous Cu- and Ni-foams with similar solid fraction. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free