Abstract
Amorphous and polycrystalline films of hydride-forming intermetallic compounds (IMCs) have been prepared by vacuum deposition methods. Structure and composition have been investigated by XRD, XPS and by fluorescent X-ray spectroscopy. La-Ni, Pr-Ni and Ni-Zr films have been obtained on water-cooled Cu substrates by magnetron sputtering of intermetallic targets under an Ar atmosphere. Amorphous films with compositions corresponding to PrNi 5 and LaNi 5 (thickness ~ 5–10 μm) and films with different La:Ni ratios depending on substrate position with respect to the magnetron axis have been prepared. After exposure to air for some time, La 2O 3 and La(OH) 3 surface layers were formed. Amorphous Ni-Zr films have been obtained by NiZr target sputtering. Surface segregation of ZrO 2 is observed. The Ni concentration in these films is less than in the target, especially near the surface. Polycrystalline Ni-Zr and Mn-Ti films have been obtained by a vacuum deposition -diffusion method (magnetron sputtering and electron beam evaporation of Zr and Mn using Ni and Ti substrates followed by annealing in a vacuum at 573–973 K). Using these methods, amorphous and crystalline films of hydride-forming IMCS can be produced on different supports such as granules, foils, powder, ribbons, etc.
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