Aluminum Foams with Closed Pores Obtained by Casting Techniques
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Date
2012Author
Geamăn, Virgil
Pop, Mihai Alin
Jiman, Vasile
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Techniques for the preparation of metallic foams, including casting, powder
metallurgy and metallic deposition, have been reviewed. There is a present interest
in the development of materials capable of plastic deforming to absorb the effects of
shock and impact. Solid foams form an important class of lightweight, cellular
engineering materials to meet these threats. The foam materials themselves may be
divided into two classes according to their morphology. The first group is open cell
structured foams containing pores that are connected to each other and form an
interconnected network. The second class does not have interconnected pores and is
termed as closed cell foams. The paper presents some experimental data for
obtaining aluminum foams with hollow pores by casting techniques. The specific
equipment used for experiments is also described.
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- 2012 fascicula9 nr1 [14]