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Metallic foam processing from the liquid state

The competition between solidification and drainage

Published online by Cambridge University Press:  15 May 2001

S. J. Cox ,
G. Bradley  and
D. Weaire
S. J. Cox*
Affiliation:
Department of Physics, Trinity College, Dublin 2, Ireland
G. Bradley
Affiliation:
Department of Physics, Trinity College, Dublin 2, Ireland
D. Weaire
Affiliation:
Department of Physics, Trinity College, Dublin 2, Ireland
*
[email protected]
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Abstract

A model is developed to describe the formation of metallic foams in which liquid drainage acts to collapse the foam before it can freeze. Numerical solution of the foam drainage equation, combined with the equations of heat conduction, provides new insight into the competition between these two processes. It also stimulates and confirms a theoretical analysis which leads to criteria for creating uniform samples of frozen metal foam. The analysis suggests new experiments to clarify the role of the various processes leading to foam formation.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 14 , Issue 2 , May 2001 , pp. 87 - 96
Copyright
© EDP Sciences, 2001

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