ИСТИНА

To investigate the hydrogenation behaviour of nanocrystalline TiFe and Ti0.49Fe0.49Co0.02 alloys the pressure-composition isotherms were obtained. The materials synthesized by mechanical alloying demonstrate a significant difference of their sorption parameters compared with the corresponding as-cast alloys. The former were characterized by extended α-solid solution region and reduced maximum hydrogen absorption capacity. Moreover, in the case of nanocrystalline alloys the second plateau shifted to very high pressures or completely disappeared. The doping of TiFe by third component results in equilibrium pressure decreasing and hydrogen capacity reduction both as-cast and MA materials.