V-Ni二元合金的吸放氢性能

稀有金属, 2007, 31(1): 38-42. doi: 10.3969/j.issn.0258-7076.2007.01.009

V-Ni二元合金的吸放氢性能

周潇潇 ^1, , 陈云贵 ^2, , 严义刚 ^3, , 梁浩 ^4, , 吴朝玲 ^5, , 陶明大 ^6,

1.四川大学材料科学与工程学院,四川,成都,610064

2.四川大学材料科学与工程学院,四川,成都,610064

3.四川大学材料科学与工程学院,四川,成都,610064

4.四川大学材料科学与工程学院,四川,成都,610064

5.四川大学材料科学与工程学院,四川,成都,610064

6.四川大学材料科学与工程学院,四川,成都,610064

基金项目: 攀枝花科技局重点攻关项目(GX2003-1)

关键词：贮氢合金 , V-Ni二元合金 , 吸放氢性能 , X射线衍射

Hydrogen Storage Properties of V-Ni Binary Alloys

研究了V100-xNix(x=0～12%(原子分数))二元合金的活化性能、吸氢动力学性能、放氢PCT性能及吸放氢过程相结构的变化.Ni的添加提高了钒的活化性能和动力学性能.随着Ni含量的增加,γ相的分解压逐渐升高,稳定性降低.在20 ℃,3MPa氢压下,当Ni含量高于0.5%(原子分数)时,γ相的含量迅速降低,饱和吸氢量明显减少,当Ni含量超过2%(原子分数)时,γ相消失.增加Ni含量,有利于降低β相的含量,提高β相的分解压.随着Ni含量的增加,合金的晶格常数呈线性趋势降低.

参考文献

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V-Ni二元合金的吸放氢性能

Hydrogen Storage Properties of V-Ni Binary Alloys

参考文献