Hydrogen absorption and corresponding changes in structure and thermal stability of Zr₆₀Al₁₀Ni₃₀ amorphous alloy

Zr₆₀Al₁₀Ni₃₀ amorphous alloy exhibiting a wide supercooled liquid region was prepared by a melt-spinning technique. The hydrogen absorption properties and corresponding changes in structure and thermal stability were then investigated and compared with those in the crystalline state. Zr₆₀Al₁₀Ni₃₀ amorphous alloy absorbs hydrogen of 0.94 to approximately 1.13 H/M between 473 and 723 K, but releases little in the desorption process. The hydriding induces structural and thermal stability changes, which is dependent on the hydriding temperature and the absorbed hydrogen content. The hydrogen absorption behaviors in the amorphous state are seen to be quite different from those in the crystalline state.