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Towards Reaching the Theoretical Limit of Porosity in Solid State Metal Foams: Intraparticle Expansion as A Primary and Additive Means to Create Porosity
Author(s) -
Atwater Mark A.,
Darling Kris A.,
Tschopp Mark A.
Publication year - 2014
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201300431
Subject(s) - porosity , materials science , solid state , porous medium , limit (mathematics) , composite material , engineering physics , mathematics , engineering , mathematical analysis
A first‐of‐a‐kind solid state processing method is reported for creating metal foams with up to 40% porosity within powder particles, termed AERO ( Additive Expansion by the Reduction of Oxides ). In this first study, a complex fully foamed Cu–Sb sintered part is produced with close to 70% porosity and this could theoretically be even higher.