通过定容变压法研究了不同温度(25～150℃)与初始压力(10～160 kPa)对Zr9Ni11合金吸氢性能的影响.氢化实验结果表明,随着温度的升高,Zr9Ni11合金平衡压力明显升高,但吸氢量随之降低.当温度低于75℃时,Zr9Ni11合金初始吸氢速率随温度升高而增大,而当温度高于75℃时,初始吸氢速率随温度升高而降低.初始氢气压力对合金动力学性能影响显著,初始氢气压力低于50 kPa时,合金吸氢速率随初始压力增长而急剧增加,并且在初始氢气压力较低时,仍能快速吸氢.合金吸氢量与平衡压力也随初始氢气压力增加而增大.XRD与TEM分析表明,合金在吸氢前主要为Zr9Ni11相,吸放氢循环后,变为混晶,同时存在非晶态.SEM分析显示,合金在氢化过程中表面粗糙化并出现大量裂痕.研究表明,Zr9Ni11合金可以作为除氚的备选材料.
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