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为了补充我们在 LaNi_5上所获得的重氢化物以及在其它 Mn 和 Al 置换的 LaNi_5上所获得的重氢化物的结果。在此报导了用 Fe,Cu,Si 量置换的三种的研究。发现与 Si 相反 Cu 占据着 Ni 的两个格点,Si 跟Al 一样,仅占据 Z=1/2.3g 格点。联系氢化性质和置换特征讨论了相应的氘化物的结构。中子自由程时间的研究是由于氢有可动性才得以实现的。在 LaNi_5H_(6.6)的氢弹性峰值背底上看到一个微小的贡献,它在以 LaNi_4Al 制得的氢化物中不出现。表明存在着数量上不可忽略(～2%)的高度活动的氢,它看来是由于在活化后的 LaNi_5中广泛存在着显微裂纹的缘故。
In order to supplement the results of the deuterated hydride we obtained on LaNi_5 and the deuterated hydride obtained on other Mn and Al-substituted LaNi_5. Here, three types of studies in which the amounts of Fe, Cu and Si are replaced are reported. It is found that Cu, in contrast to Si, occupies two lattice points of Ni, which, like Al, occupies only Z = 1 / 2.3g lattice points. The structure of the corresponding deuterated compounds is discussed in connection with the hydrogenation properties and displacement characteristics. The study of free time of neutrons was achieved because hydrogen was mobile. A small contribution is seen on the hydrogen-elastic peak back of LaNi_5H_ (6.6), which does not appear in hydrides made with LaNi_4Al. This indicates that there is a significant amount of non-negligible (~ 2%) highly active hydrogen, which appears to be due to the widespread presence of micro-cracks in the activated LaNi_5.