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Title: Foaming of AA 6061 using multiple pieces of foamable precursor
Author: Duarte, Isabel
Oliveira, Mónica
Garcia-Moreno, Francisco
Mukherjee, Manas
Banhart, John
Keywords: Aluminium alloy foams
Multiple precursors
Powder metallurgy
X-ray radioscopy
X-ray tomography
Issue Date: Dec-2013
Publisher: Elsevier
Abstract: Aluminium foams were produced by expanding multiple pieces of foamable precursor inside a mould instead of using a single piece. The kinetics of foam formation and mould filling were visualised in situ by X-ray radioscopy. It was found that foaming of multiple precursor materials leads to the best result when the growth directions of the individual precursor pieces are perpendicular to each other. X-ray tomography was used to study the internal structure of the foams in 3D. High local densities in joining regions and in areas of delayed pore nucleation were observed.
Peer review: yes
DOI: 10.1016/j.colsurfa.2013.02.061
ISSN: 0927-7757
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Appears in Collections:TEMA - Artigos
DEM - Artigos

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