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【荷兰《核材料杂志》1983年第116卷第2-3期第141页报道】日本原子能研究所测定了氚在 Li-Al合金中的扩散系数。发现在铝中添加0.02%的锂以后,氚的扩散系数变为 D=8.5×10~(-5)exp[-43.9±14.8(千焦/摩)/RT](厘米~2/秒)该值比氚在纯铝中的扩散系数低一个数量级。进一步增加锂含量,会进一步降低氚的扩散系数。原因是氚与锂发生化学反应而被束缚。
[Netherlands, “Journal of Nuclear Materials,” 1983, Volume 116, No. 2-3, page 141 reported] Japan Institute of Atomic Energy tritium in the Li-Al alloy diffusion coefficient. It was found that the diffusion coefficient of tritium becomes D = 8.5 × 10 -5 exp [-43.9 ± 14.8 (J / mol) / RT] (cm -2 / sec) after adding 0.02% of lithium to aluminum The value is one order of magnitude lower than the diffusion coefficient of tritium in pure aluminum. Further increase the lithium content, will further reduce the tritium diffusion coefficient. The reason is tritium and lithium chemical reaction is bound.