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Improvement of aluminium foaming by powder consolidation under vacuum
Jiménez C., Garcia-Moreno F., , Goerke O., Banhart J.
Published in Elsevier
Volume: 61
Issue: 5
Pages: 552 - 555
Foamable AlSi11 precursors were uniaxially hot-compacted under vacuum and air and then foamed. We studied the influence of the compaction atmosphere on the foaming behaviour in situ by X-ray radioscopy. In vacuum-pressed precursors the growth of elongated bubbles was reduced, resulting in a larger expansion and more reproducible foaming due to improved consolidation. As a consequence, foams made from these precursors show a more regular pore size distribution than foams made from traditionally pressed precursors. © 2009 Acta Materialia Inc.
About the journal
JournalData powered by TypesetScripta Materialia
PublisherData powered by TypesetElsevier
Open AccessNo