On the synthesis of the Mg2Ni alloy by mechanical alloying

  title={On the synthesis of the Mg2Ni alloy by mechanical alloying},
  author={Arvind Singh and Archana Singh and O. Srivastava},
  journal={Journal of Alloys and Compounds},
The synthesis of the hydrogen-storage alloy Mg2Ni has been carried out through a single-step mechanical alloying employing an energy ball mill. The synthesized ball-milled Mg2Ni alloy has been found to exist in the form of fine (nano) particles with sizes of about 40 A. The nanoparticle form has been found to lead to easy activation for hydrogenation by annealing at 300 °C (about 10−4 Torr vacuum) for 30 min and hydrogen uptake has been found to commence from the first cycle itself. 
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Comparative evaluation of Mg–Ni hydrogen absorbing materials prepared by mechanical alloying
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Abstract A new method for the preparation of amorphous alloys is the mechanical alloying process. So far, three amorphization reaction types were observed when this technique is used. Which reactionExpand
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Hydriding properties of a mechanically alloyed 2Mg + Ni mixture have been investigated and compared with those of the Mg2Ni alloy prepared by melting and sintering. The mechanically alloyed 2Mg + NiExpand
Glass-forming range in mechanically alloyed Ni-Zr and the influence of the milling intensity
Amorphous Ni‐Zr powders have been prepared by mechanical alloying from crystalline elemental powders. The glass‐forming range has been determined by x‐ray diffraction, differential scanningExpand
Dehydriding kinetics of a mechanically alloyed mixture with a composition Mg2Ni
Abstract Dehydriding rates of a mechanically alloyed mixture with a composition Mg2Ni are obtained between 576 K and 618 K under 1.0–2.2 bar H2. The rate-controlling steps of its dehydriding reactionExpand
Amorphization in an immiscible CuV system by mechanical alloying and structure observed by neutron diffraction
Abstract Copper and vanadium atoms are immiscible even in the liquid state and the system is characterized by a positive heat of mixing. A mixture of elemental copper and vanadium powders wasExpand
Dehydriding kinetics in the Mg2Ni-H2 system
Abstract The dehydriding kinetics of the Mg2Ni-H2 system are studied between 576 and 610 K under 1.0–3.0 bar H2. A simple relation between the variation in the interfacial area of the reaction andExpand
The physics of mechanical alloying: A first report
In this paper, we present a first attempt to define the basic geometry, mechanics, and physics of the process of mechanical alloying. The geometry of the collision events which lead to particleExpand
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