Hydrogen absorption,hydrogen-induced amorphization(HIA),precipitation of RH_2 and crystallization of an amorphous phase occurred with increasing temperature for R=Y,Sm,Gd,Tb,Dy and Ho.

• 发现RF e2相(R=Y；C e；Sm；G d；T b；D y)随温度的升高出现吸氢、氢诱导非晶化(H IA)、RH2的沉淀析出及非晶相的晶化过程.