Hydrides ScFe(Ni)2Hx: preparation and properties

The interaction of the intermetallic compounds ScFe2 and ScNi2 with ammonia was investigated at an initial pressure of ammonia of 0.6–0.8 MPa in the presence of 10 mass% (from the quantity of intermetallide entered in reaction) of NH4Cl as a process activator. The possibility of obtaining both crystalline hydrides of the intermetallic compounds and amorphous products of a reaction in a high-dispersed state was shown at various temperatures. It has been established that the decomposition of the intermetallides in ammoniacal medium occurs at ⩾450°C.