锂陶瓷γ-LiAlO_2放氚行为研究

STUDY ON TRITIUM RELEASE BEHAVIOR FROM LITHIUM ALUMINATE γ-LiAlO_2

采用堆外实验来研究γ－LiAlO2增殖剂的放氚行为。根据测得的γ－LiAlO2的放氚曲线，确定了748～873K范围内氚在γ－LiAlO2中的扩散系数常数D0＝（1．39±0．10）×10(-9)m2·S(-1)，活化能Q＝（145±3）kJ·mol(-1)。

Tritium release behavior of breeder γ-LiAlO2 is studied with out-of-pile experiments. According to measuring curves, diffusivity is calculated from 748 K to 873 K, D0 =(1. 39±0. 10) ×10-9 m2·s-1,Q=(145±3) kJ·mol-1.