Abstract
A newly developed high pressure thermal analysis installation was used for the investigation of the hydrogen-sorbing characteristics of the Mg-Ni alloy. This apparatus made possible to measure DTA and TG curves simultaneously under hydrogen pressures up to 50kgfcm-2. Pressure-composition isotherms for the Mg2Ni-H2 system were obtained by isothermal measurements. The isobaric thermal cycling experiments revealed a shift of the initiation temperature for the desorption which corresponded to the activation process of powdered samples from “deactivated” state by having been exposed in air to “activated” state.
