Zr_9Ni_(11)合金的吸氢性能测定  

Determination of hydrogen absorption property of Zr_9Ni_(11) alloy

作　　者：杜良[1] 胡彦泽[1] 但贵萍[1] 张东[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,绵阳621900

出　　处：《核技术》2012年第6期447-451,共5页Nuclear Techniques

基　　金：国防科工局核设施退役及放射性废物治理专项工程技术研究项目资助

摘　　要：研究了Zr9Ni11合金室温下多次吸放氢循环中吸氢量变化及低压下吸氢动力学特征,并采用SEM和XRD研究吸氢前后合金的微观特征。结果表明:初始压力为161 kPa时,室温下Zr9Ni11合金的吸氢量较高,前六次循环平均值达0.0045 mol/g,并随循环次数的增加出现轻微下降;Zr9Ni11合金的吸氢速率虽随氢压力减小而降低,但仍可在低压时于2–3 min内达到饱和吸氢量;SEM和XRD分析表明,吸放氢后合金表面组成发生了变化,由此引起合金吸氢量变化,Zr9Ni11合金是一种优良的除氚备选材料。The behavior of hydrogen-absorption of Zr9Nin was studied experimentally in multi-cycle hydrogen absorption and desorption at room temperature under low hydrogen pressure. The results showed that the hydrogen absorption of the alloy was high, though it decreased slightly with increasing number of the cycles. The reaction rate was fast, though it decreased with the hydrogen pressure decreasing. Surface of the alloy became rough, and the composition changed after hydrogenation, which maybe the reason of degraded capability of hydrogen absorption. The Zr9Ni11 can be a good candidate for removing tritium in the air.

关 键 词：Zr9Ni11合金 氚 动力学特征 

分 类 号：TG139.7[一般工业技术—材料科学与工程]