【摘要】 为寻找一种价格低廉、分离性能优良的氢同位素分离材料来替代金属Pd,对Ti-Mo合金的氢同位素效应进行研究。采用磁悬浮熔炼方法制备5种不同组成的TiMo_x(x=0.03、0.13、0.25、0.50、1.00,Mo/Ti原子比)固溶体合金,用定容变压法测试了250～650℃范围内的吸氘动力学性能。结合前期吸氕动力学的研究结果可知,在250～650℃范围内,合金的平衡吸氕量略大于合金的平衡吸氘量。Mo含量小于1.00,在低温(250～450℃)下,合金的吸氘表观活化能均为负值。高沮(450～650℃)下,合金的吸氘表观活化能大于吸氕表观活化能,与钛吸氢同位素动力学效应保持一致。更多还原

【Abstract】 Deuterium absorption kinetics of the alloys TiMo_x(x=0.03,0.13,0.25, 0.50,1.00,Mo/Ti atomic ratio)were studied at the temperature range of 250-650℃by using the constant volume method.The activation energy of deuterium absorption decreases when the content of Mo rises from 0 to 0.25,and increases when the content rises over 0.25,at the temperature range of 450-650℃.The activation energy shows negative,when the temperature range is 250-450℃.Compared with protium absorption results investigated at previous period,the protium content in alloys is higher than the deuterium content at the temperature range of 250-650℃,showing negative thermody- namic isotope effect.At 450-650℃,it is harder for the alloys to absorb deuterium, while in lower temperature range,250-450℃,the alloys show more active to absorb deuterium.更多还原