This work was supported by the Defense Advanced Research Project Agency's Structural Amorphous Metals (DARPA-SAM) program and the Caltech Center for Structural Amorphous Metals. The authors thank Richard Scheunemann (Northwestern University) for experimental help in preform fabrication and John DeFouw (Northwestern University) for useful discussions.
Ductile Bulk Metallic Glass Foams†
Article first published online: 18 FEB 2005
Copyright © 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 17, Issue 4, pages 484–486, February, 2005
How to Cite
Brothers, A. H. and Dunand, D. C. (2005), Ductile Bulk Metallic Glass Foams. Adv. Mater., 17: 484–486. doi: 10.1002/adma.200400897
- Issue published online: 18 FEB 2005
- Article first published online: 18 FEB 2005
- Manuscript Accepted: 12 OCT 2004
- Manuscript Received: 4 JUN 2004
- Metal alloys;
- Metallic glass
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.