Study on Pre-treatment and Particle Size of Titanium Hydride Powders Used as Foaming Agents of Al Foams
The pre-heating treatment and particle sizes of titanium hydride (TiH2) powders were investigated symmetrically. Pre-heating treatment was indispensability for the production of P/M Al foams due to the reduced mismatch between the Al melt point t and decomposition temperature of TiH2 powders. Particle sizes of pre-heated TiH2 powders with pre-heating treatment were not varied. The colors of pre-heated TiH2 powders varied with the pre-heating temperature and annealing time. At all DSC curves of the powders measured in argon, the endothermic peaks were observed significantly. The position of endothermic peaks changed with the pre-heating treatment temperature and particle size of TiH2 powders. Pre-heated TiH2 powders at 530℃ for an hour and particle sizes named M and S are more suitable for manufacturing P/M Al foams.
TiH2 powders Particle size Pre-heating treatment Foaming agent Al foams
Wang Lei Yao Guangchun Luo Hongjie Ma Jia Hua Zhongsheng
Engineering and Researching Center of Material Advanced Preparing Technology (Ministry of Education) Northeastern University, China No.11, Lane 3, WenHua Road, HePing District, 117th Box, Shengyang, 110004 China
国际会议
沈阳
英文
422-424
2009-08-27（万方平台首次上网日期，不代表论文的发表时间）