泡沫SiC颗粒增强铝基复合材料的制备工艺和拉伸强度  

Fabrication Processing and Tensile Strength of Foam of Al/ SiC_p Composites

作　　者：桂满昌[1] 吴洁君[1] 袁广江[1] 王殿斌[1] 

机构地区：[1]北京航空材料研究院,北京100095

出　　处：《材料工程》2001年第1期26-27,共2页Journal of Materials Engineering

基　　金：航空科学基金资助项目

摘　　要：介绍了一种新的泡沫金属材料—泡沫 Si C颗粒增强铝基复合材料 ,泡沫的孔隙率为 6 0 %～ 85 %。用 Ti H2 作发泡剂 ,采用直接发泡工艺制备。由于复合材料熔体自身粘度较大 ,不需要采用任何增粘措施 ,发泡工艺简单 ,易于操作。该泡沫材料比普通泡沫铝或铝合金具有更高的抗拉。WT5BZ]A new metallic foam, i e the foam of SiC particle reinforced aluminum matrix composite with the porosity of 60%~85% is introduced The foam is produced by the foaming process with TiH 2 blowing agent The foaming process is controlled easily since the viscosity of composite melts is quite great, without the addition of viscosity increasing agent Comparing with common foamed aluminum or its alloys, the composite has greater tensile and compression strength

关 键 词：颗粒增强铝基复合材料 拉伸强度 孔隙率 泡沫碳化硅颗粒 制备工艺 

分 类 号：TB332[一般工业技术—材料科学与工程]