TRITIUM AGING EFFECT OF LaNi_(4.9)Al_(0.1)D_x ON DEDEUTERATING KINETICS

Kinetics parameters are measured at different aging times of LaNi 4.9 Al 0.1 alloy.The influence of tritium aging on kinetic feature of LaNi 4.9 Al 0.1 alloy is assessed.The results show that reaction rate decreases with aging time,but tritium aging does not change dedeuterating reaction order.Dedeuterating reaction orders a (with respect to deuterium pressure) and b (with respect to deuterium content)are 0.5 and 1, respectively.Activation energy( E ) increases with aging time.After 1 120 d, the reaction rate constant is decreased by two orders of magnitude,activation energy is increased by a factor of 0.3.