Control of nitrogen concentration in liquid lithium by hot trapping
Control of nitrogen concentration in liquid lithium by hot trapping
复制标题
通过热捕获控制液态锂中的氮浓度
DOI：
10.1016/s0920-3796(02)00203-x
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发表时间：
2002
影响因子：
1.7
通讯作者：
T. Muroga
中科院分区：
文献类型：
--
作者：
T. Sakurai;T. Yoneoka;Satoru Tanaka;A. Suzuki;T. Muroga
采用热捕集法控制了液态锂中氮的浓度。采用钒钛合金和铬作为吸氮材料。已知铬与锂形成三元氮化物。在823 K下进行0.8-2.2 Ms的吸杂实验。在液体锂中的高氮浓度（高于10 - 2质量%）下，发现铬的氮吸杂效果大于V-10原子%的氮吸杂效果钛合金。在823 K下，铬对氮的吸除在液态锂中氮浓度约为6.5×10 - 3mass%时达到极限。铬和锂的三元氮化物的不稳定性低于液态锂中的该氮浓度被认为是该限制的原因。在本研究中形成的三元氮化物的组成被认为是Li 6Cr（III）3 N5。此外，还进行了V-10at.%的钇的浸渍实验，钛合金。发现钇在液态锂中的氮化是由V-10at.%的吸氮效应控制的钛合金。
Nitrogen concentration in liquid lithium was controlled by the method of hot trapping. V–Ti alloy and chromium were used as nitrogen gettering materials. Chromium is known to form ternary nitride with lithium. Gettering experiments were conducted at 823 K for 0.8–2.2 Ms. Under high nitrogen concentration in liquid lithium, above 10−2mass%, nitrogen gettering effect of chromium was found to be larger than that of V–10at.% Ti alloy. Nitrogen gettering by chromium at 823 K reached a limit at about 6.5×10−3mass% of nitrogen concentration in liquid lithium. Instability of ternary nitride of chromium and lithium below this nitrogen concentration in liquid lithium was considered to be the reason for this limit. The composition of the ternary nitride that was formed in this study was considered to be Li6Cr(III)3N5. In addition, immersion experiments of yttrium with V–10at.% Ti alloy were performed. It was found that nitriding of yttrium in liquid lithium is controlled by nitrogen gettering effect of V–10at.% Ti alloy.