Abstract

Abstract Mg 2 Ni, Mg 2 Cu and MgZn 2 were synthesized by means of ball-milling plus solid-state reactions. Firstly, the mixtures of the two elemental powders, corresponding to the compositions of Mg 2 Ni, Mg 2 Cu and MgZn 2 , were subject to ball-milling for 20 min. Then, they were pressed into pellets and sintered at temperatures below the melting points of the components. X-ray diffraction experiments show that the yields of the desired products are above 97 wt.%, higher than those prepared by the conventional metallurgical method. The hydrogenation properties of the Mg 2 Ni sample synthesized by solid-state reaction are in agreement with the previously published results on alloys prepared by the conventional methods.

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