| Issue |
Eur. Phys. J. AP
Volume 14, Number 2, May 2001
|
|
|---|---|---|
| Page(s) | 87 - 96 | |
| Section | Organic Materials and Devices | |
| DOI | https://doi.org/10.1051/epjap:2001141 | |
| Published online | 15 May 2001 | |
https://doi.org/10.1051/epjap:2001141
Metallic foam processing from the liquid state
The competition between solidification and drainage
Department of Physics, Trinity College, Dublin 2, Ireland
Corresponding author: coxs@tcd.ie
Received:
20
September
2000
Revised:
29
January
2001
Accepted:
29
January
2001
Published online: 15 May 2001
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.
PACS: 82.70.Rr – Aerosols and foams / 47.55.Mh – Flows through porous media / 72.15.Cz – Electrical and thermal conduction in amorphous and liquid metals and alloys
© EDP Sciences, 2001
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