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在４４８～６２３Ｋ温度范围内，由实验测得氢的平衡分压与组分变化的关系，从Ｖｏｎ＇ｔＨｏｆｆ曲线可计算得到，连续固溶体（组分范围为ｎ＝２～２．５／Ｓｍ）中相关偏摩尔焓和相关偏摩尔熵值。氢原子和八面体空隙之间的相互作用能是负值（４～８ｋＪ／ｍｏｌ），表明它们之间相互吸引；从二相共存区氢平衡分解压与温度、用分的关系计算得到了非富氢区域六方ＳｍＨ＿３生成的相关摩尔焓和摩尔熵值；由于本实验创造了一个极高纯度，无污染的实验条件，结果表明本实验数据表现的滞后现象较先前发表的结果小６．５倍。
In the temperature range of 448 ~ 623K, the equilibrium partial pressure of hydrogen and the change of composition were experimentally determined. From the Von’t Hoff curve, the continuous solid solution (composition range n = 2 ~ 2.5 / Sm) Related partial molar enthalpy and related partial molar entropy. The interaction between hydrogen atoms and octahedral voids can be negative (4 ~ 8kJ / mol), indicating that they attract each other. From the equilibrium pressure and temperature of hydrogen equilibrium in the two-phase coexistence zone, The relevant molar enthalpy and molar entropy of the hexagonal SmH_3 generation in the hydrogen-rich region; as a result of this experiment, an extremely high-purity, non-polluting experimental condition was established and the results showed that the experimental data showed a hysteresis of 6.5 times smaller than previously published results .