Composite metal foam and methods of preparation thereof
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United States of America Patent
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Dec 8, 2015
Grant Date -
Aug 2, 2012
app pub date -
Feb 3, 2012
filing date -
Nov 29, 2004
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Abstract
The present invention is directed to composite metal foams comprising hollow metallic spheres and a solid metal matrix. The composite metal foams show high strength, particularly in comparison to previous metal foams, while maintaining a favorable strength to density ratio. The composite metal foams can be prepared by various techniques, such as powder metallurgy and casting.
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