测定了LaNi5-xAlx(x =0 .0、0 .1、0 .2、0 .3)的氘化与去氘化热力学参数 ,评价了LaNi5-xAlx 中铝含量对氘化与去氘化热力学函数的影响。研究结果表明 ,合金的坪台压力和吸氘容量随x的增加而降低 ;坪率随x的增加而增加 ;热力学焓变与熵变随x的增加而减少 ;滞后系数Hf 随x的增加而减少。 The thermodynamic parameters of deuteration and deuteration of LaNi5-xAlx (x = 0,0 .1,0 .2,0. 3) were determined, and the influence of the content of aluminum in LaNi5-xAlx on the deuteration and deuteration thermodynamics The impact of the function. The results show that the plateau pressure and deuterium absorption capacity decrease with the increase of x; the plateau rate increases with the increase of x; the enthalpy and entropy change of thermodynamics decrease with the increase of x; the lag coefficient Hf increases with the increase of x cut back.