Влияние механической активации на наводораживание порошка Ti-Ni

Abstract

It has been studied an effect of mechanical activation in a planetary ball milling on the electrochemical hydrogenation of Ti-Ni powder. With an increase in the time of mechanical activation was formed state with small the coherently diffracting domain which correspond to quasi-amorphous state of material. There is an incubation time hydrogenation for mechanical activation, when hydrogenation is not occurring. Mechanical activation for more than 30 s leads to the formation of the Ti2NiHx phase based on the Ti2Ni and 50 s activation is sufficient to form the Ti2NiH0.5 stoichiometry. For a longer mechanical activation a phase with the stoichiometry Ti2NiH0.85 was formed.