通过计算和X衍射物相分析方法讨论了金属镧中氢的存在形式，实验和计算证实微量的氢在镧中不是以镧固溶体中溶质存在，而是以氢化镧的形式存在。
The micro hydrogen content and its formation in lanthanum metal is discussed by calculation and X-diffraction pattern . Micro hydrogen exists not as solute in La metal matrix , but as LaH_x .
氢化镧