Nanoporous Copper-Nickel – Macroscopic bodies of a strong and deformable nanoporous base metal by dealloying. (October 2018)

• Record Type: Journal Article
• Authors: Lührs, Lukas; Weissmüller, Jörg
• Is Part Of: Scripta materialia. Number 155(2018)
• Page Start: 119
• Page End: 123
• Publication Date: 2018-10
• Subjects: Nanoporous base metal -- Mechanical properties -- Nanostructure -- Porous material -- Mesoporous metal; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2018.06.025
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: 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. Graphical Abstract: