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Influence of Additives on Preparation of Aluminum Foam

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Abstract:

Aluminum foam was fabricated by using powder compact metallurgy method. The variation of magnesium particle as the metal additive during sintering was investigated. The addition of SiC particles on the morphology of the foams was discussed. The results revealed that for the foamable precursor with magnesium powders (1wt.%) added, the diffusion boundary between magnesium and the matrix could be increased with extending the sintering time. It was thought that the viscosity of melt increased by adding SiC particles so that the coalescence among the pores during foaming was relieved. As a result, the stability of the aluminum foam would be increased during foaming.

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Periodical:

Advanced Materials Research (Volumes 785-786)

Pages:

91-96

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.785-786.91

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Online since:

September 2013

Authors:

Hao Lin, Hong Jie Luo, Wei Sun, Guang Chun Yao

Keywords:

Magnesium, Powder metallurgy, Silicon Carbide (SiC), Sintering, Stabilization

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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