文献类型：期刊文章

作　　者：李大武[1,2] 李杰[1] 李涛[1] 孙挺[1] 张小明[3] 姚广春[3]

机构地区：[1]东北大学理学院化学系,沈阳110004 [2]中国刑警学院痕迹检验技术系,沈阳110854 [3]东北大学材料与冶金学院教育部材料先进制备技术工程研究中心,沈阳110004

出　　处：《Transactions of Nonferrous Metals Society of China》

基　　金：Project (2004AA33G060) supported by the National High-tech Research and Development Program of China

年　　份：2011

卷　　号：21

期　　号：2

起止页码：346-352

语　　种：中文

收录情况：AJ、CAS、CSA、CSA-PROQEUST、CSCD、CSCD2011_2012、EBSCO、EI、IC、INSPEC、JST、SCI(收录号：WOS:000288451200019)、SCI-EXPANDED(收录号：WOS:000288451200019)、SCIE、SCOPUS、WOS、ZGKJHX、普通刊

摘　　要：Aluminum foams were fabricated by melt-based route using ZrH2 as a foaming agent. The factors which affected the foaming of aluminum foams during casting process were investigated. The powdered zirconium hydride with content of 0.6%-1.4% （mass fraction） was added to the molten pure aluminum and the foaming condition was controlled in a temperature range from 933 to 1 013 K, Ca amount of 1.5%-3.0% （mass fraction）, stirring time of 0.5-2.5 min and holding time of 1.5-4.0 min to obtain homogeneous aluminum foams. The fabricated aluminum foams were characterized by XRD, SEM and Image-pro plus. The mechanical properties of the aluminum foams with different relative density were tested. The result indicates that the foaming agent （ZrH2） is suitable for the preparation of small aperture aluminum foams with average pore diameter of 1 mm. Inter-metallic compounds and Al2O3 have effect on the melt viscosity. The aluminum foams experience linear elastic, platforms and densification process and had a higher efficiency of energy absorption.

关 键 词：aluminum foams  zirconium hydride  BUBBLE melt-based route  

分 类 号：TB383.4[材料类]