V-Ti-Cr-Fe合金的储氢性能研究

稀有金属材料与工程, 2006, 35(5): 686-689.

V-Ti-Cr-Fe合金的储氢性能研究

严义刚 ^1, , 陈云贵 ^2, , 梁浩 ^3, , 梁洁 ^4, , 吴朝玲 ^5,

1.四川大学,四川,成都,610065

2.四川大学,四川,成都,610065

3.四川大学,四川,成都,610065

4.四川大学,四川,成都,610065

5.四川大学,四川,成都,610065

基金项目: 四川省攀枝花市科技局资助项目(GX2003-1)

关键词：储氢合金 , V-Ti基固溶体 , bcc , 储氢性能

Hydrogen Storage Properties of V-Ti-Cr-Fe Alloys

研究了V(30%)-Ti(15%～55%)-Cr(7%～43%)-Fe(2%～18%)(原子分数,下同)四元合金的储氢性能.结果表明:V-Ti-Cr-Fe四元合金的吸氢量与有效吸氢量主要由Ti/(Cr+Fe)比决定,当Ti((Cr+Fe)=1时,合金具有最好的吸放氢性能.随着Ti/(Cr+Fe)比升高,合金的晶格常数增大,氢化物的生成焓增大,放氢平台压力降低.在298 K时,V30Ti35Cr25Fe10合金的吸氢量达到3.6%(质量分数,下同),有效吸氢量达到2.0%.

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材料期刊网

V-Ti-Cr-Fe合金的储氢性能研究

Hydrogen Storage Properties of V-Ti-Cr-Fe Alloys

参考文献