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Experiments on metallic foams under gravity and microgravity
García-Moreno Francisco, Jiménez Catalina, , Holm Per, Weise Jörg, Banhart John
Published in Elsevier BV
Volume: 344
Issue: 1-3
Pages: 101 - 106

Aluminium foams were created on ground and under microgravity conditions and were allowed to evolve. The entire foaming process was monitored by in situ X-ray radioscopy, allowing for flow and drainage of the liquid of the foam to be monitored and quantified. A foam with a known low stability level was used to enhance the effects of microgravity. The flow of metal out of the foam under gravity during the 1.8 g phase was found to be fast, indicating a mobile liquid. The density profile evolved in a similar way as in aqueous foams. Reentry of the liquid melt into the foam was also observed. Under microgravity the foam re-established a uniform density and pore size distribution after nearly complete imbibition of the liquid. This also shows that the liquid is mobile.

About the journal
JournalData powered by TypesetColloids and Surfaces A: Physicochemical and Engineering Aspects
PublisherData powered by TypesetElsevier BV
Open AccessNo