LaNiAl储氢材料的导热性能  

Thermal conductivity of LaNiAl tritium storage materials

作　　者：梁斌斌[1] 赵崴巍[1] 刘珊珊[1] 杨洪广[1] 

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《材料热处理学报》2016年第10期59-62,共4页Transactions of Materials and Heat Treatment

摘　　要：采用稳态法研究了温度、氢气压力、吸氢容量(H/M)和加热功率等条件对LaNiAl储氢材料导热性能的影响。研究结果表明:温度、氢气压力对LaNiAl材料有效热导率有显著影响,随着温度的升高、氢气压力的增大,LaNiAl材料有效热导率初期有降低趋势,后有效热导率趋于恒定;LaNiAl材料的有效热导率随吸氢容量的升高而增大,两相区增速较缓慢,氢化物相区热导率有快速增加;加热功率对LaNiAl有效热导率没有影响,并初步分析了各影响因素对材料导热性能的影响的机制。In order to get the characteristics of LaNiAl hydrogen storage alloys, effects of temperature, hydrogen pressure, hydrogen storage capacity（H/M） and heating power on thermal conductivity of the LaNiAl materials were investigated by the steady-state method. The results show that the effective thermal conductivity decreases with the temperature and hydrogen pressure increasing at the beginning, and then tends to be constant. With the hydrogen contents increasing, the effective heat conductivity increases. It is found that in the twophase region, the effective heat conductivity increases slowly and exhibits rapid increase in the hydride region. No effect of the heat power on the effective heat conductivity is observed, and we also analyzed the mechanisms of various factors on the heat transfer performance of the LaNiAl materials.

关 键 词：LaNiAl 热导率 传热 储氢材料 

分 类 号：TB34[一般工业技术—材料科学与工程]