Synergistic Effects of Al and Cr Addition on Microstructure of Mg2Ni Hydrogen Storage Alloy

摘要：

The Mg-based hydrogen storage alloys of Mg2Ni (A2B), Mg1.7Al0.3Ni, Mg2Ni0.8Cr0.2 and Mg1.8Al0.2Ni0.8Cr0.2 were successfully prepared by mechanical alloying and sintering. The effect of the substitution side A by Al and side B by Cr on microstructure of Mg2Ni alloy has been studied by XRD and SEM. The results indicated that the synergistic effect occurred when the elements Al and Cr coexist in Mg2Ni alloy, element Cr could inhibit the formation of non-hydrogen-adsorption phase of Al3Ni2, in addition, it will promote the formation of hydrogen-adsorption phase of Mg3AlNi2; the existence of Al could inhibit the formation of non-hydrogen-adsorption phase of δ - Cr, Ni.

关键词： Mg-based Hydrogen Storage Alloy Element Substitute Synergistic Effect

作者: Zhaoming XIE Fusheng PAN Yafang XIANG Yuan CHEN

作者单位: College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, China College of Materials Science and Engineering, Chongqing University, Chongqing, China

会议类型: 国际会议

会议名称: 2008年中美材料国际研讨会

会议地点: 重庆

会议语种:英文

页码: 960-963

在线出版日期: 2008-06-09（万方平台首次上网日期，不代表论文的发表时间）