Foaming of aluminium-silicon alloy using concentrated solar energy

被引:27
作者
Cambronero, L. E. G. [1 ]
Canadas, I. [2 ]
Martinez, D. [2 ]
Ruiz-Roman, J. M. [1 ]
机构
[1] ETSIM UPM, Grp Mat Hibridos, Madrid 28003, Spain
[2] CIEMAT, Plataforma Solar Almeria, Tabernas, Almeria, Spain
关键词
Aluminium foam; Solar heating; Foaming treatment;
D O I
10.1016/j.solener.2009.11.014
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Solar energy is used for the work reported here as a nonconventional heating system to produce aluminium foam from Al-Si alloy precursors produced by powder metallurgy. A commercial precursor in cylindrical bars enclosed in a stainless-steel mould was heated under concentrated solar radiation in a solar furnace with varied heating conditions (heating rate, time, and temperature). Concentrated solar energy close to 300 W/cm(2) on the mould is high enough to achieve complete foaming after heating for only 200 s. Under these conditions, the density and pore distribution in the foam change depending on the solar heating parameters and mould design. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:879 / 887
页数:9
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