▎ 摘　　要

Powder composites of hydrogenated eutectic Mg-Ni alloy with 10 wt % graphene-like material (GLM) were prepared mechanochemically at a hydrogen pressure of 30 atm. The effect that adding GLM, along with 10 cycles of desorption at 350 degrees C and 1 atm and sorption at 300 degrees C and 10 atm of hydrogen, has on the phase composition and microstructure of the composites is studied. It is shown that composites obtained mechanochemically (hbm composites) and subjected to cycles of hydrogen desorption-adsorption (dh composites) contain crystalline phases: alpha-MgH2 with rutile-type structure, Mg2NiH4 hydride with a disordered cubic structure (pseudo-ht-Mg2NiH4), and a solid solution of hydrogen Mg2NiH