Article ID Journal Published Year Pages File Type
1499402 Scripta Materialia 2012 4 Pages PDF
Abstract

Nanoporous metal foams synthesized by dealloying inherently undergo dimensional changes (shrinkage). If these changes are unaccounted for in the measurement of relative density, this can be underestimated, causing up to an order of magnitude error in weight-normalized properties. In constrained samples the shrinkage leads to build-up of tensile stress that modifies the porosity and may lead to crack formation. A relationship between shrinkage, relative density and atomic fraction is proposed and experimentally verified.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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