Foamed aluminum is a kind of new applied material in the 1940's. Because of its special porous structure, it has some special performance compared with traditional materials such as excellent sound absorption, sound insulation, shock absorption,electromagnetic shielding and absorbing energy and so on, so it is widely used in construction, automobiles, trains, ships, aerospace and protective armor industries and so on.In this paper, foamed aluminum was prepared by powder metallurgy method, and process steps ...
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