论文部分内容阅读
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 change of hydrogen absorption and hydrogen absorption kinetics of Zr9Ni11 alloy during multiple hydrogen absorption and desorption cycles at room temperature were studied. The microscopic characteristics of the alloy before and after hydrogen absorption were investigated by SEM and XRD. The results show that the Zr9Ni11 alloy has a higher hydrogen uptake at room temperature at an initial pressure of 161 kPa, with an average of 0.0045 mol / g for the first six cycles and a slight decrease with increasing cycles. Although the hydrogen absorption rate of Zr9Ni11 alloy With the decrease of hydrogen pressure decreased, but still at low pressure within 2-3 min to reach saturated hydrogen absorption; SEM and XRD analysis showed that the hydrogen absorption and desorption of the alloy surface composition has changed, which led to hydrogen absorption capacity of the alloy Changes, Zr9Ni11 alloy is an excellent alternative tritium material.