Hydriding properties of the MgNi-based systems

In MgNi with an amorphous phase, a miscibility-gap (plateau) pressure of ab out 3X10(-4) MPa at room temperature was clearly detected by electrochemica l p-c isotherm measurements. The total radial distribution functions for X- ray and neutron diffraction indicated that deuterium in MgNi occupies an in terstitial tetrahedral site composed of nearly 2Mg2Ni. Structural and hydri ding properties of elemental substitution systems, Mg(Ni1-xTx) (T=Co and Cu ) and (Mg1-xAlx)Ni with x=0-0.5, were also investigated experimentally. (C) 1999 Elsevier Science S.A. All rights reserved.