X.H. You
,
F. Wang
,
L.C. Wang
金属学报(英文版)
A new technique, powder compact foaming process for the production of aluminum
foams has been studied in this article. According to this method, the aluminum powder is mixed with a powder foaming agent (TiH2). Subsequent to mixing, the powder
blend is hot compacted to obtain a dense semi-finished product. Upon heating to temperatures within the range of the melting point, the foaming agent decomposes to evolve
gas and the semi-finished product expands into a porous cellular aluminum. Foaming
process is the key in this method. Based on experiments, the foaming characteris-
tics were mainly analyzed and discussed. Experiments show that the aluminum-foam
with closed pores and a uniform cell structure of high porosity can be obtained using
this method by adjusting the foaming parameters: the content of foaming agent and
foaming temperature.
关键词:
aluminum foams
,
null
,
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