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Ductile Bulk Metallic Glass Foams
Author(s) -
Brothers A. H.,
Dunand D. C.
Publication year - 2005
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200400897
Subject(s) - materials science , amorphous metal , alloy , composite material , porosity , plasticity , amorphous solid , metal , metal foam , compression (physics) , metallurgy , crystallography , chemistry
An open‐cell fully amorphous metal foam (see Figure) with a bulk density ca. 1.5 g cm –3 (porosity ca. 78 %) is fabricated from the commercial glass‐forming alloy Vit106 (Zr‐5%Nb‐15%Cu‐13%Ni‐10%Al, in at.‐%), using the salt‐replication technique. Despite the absence of significant plasticity in the monolithic alloy, the foamed alloy is ductile in compression and achieves engineering strains of 50 % without failure, giving it potential as a lightweight structural material or bone‐replacement implant.
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