Materials science of Mg-Ni-based new hydrides |
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Authors: | S Orimo H Fujii |
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Institution: | (1) Faculty of Integrated Arts and Sciences, Hiroshima University, Higashi-Hiroshima 739-8521, Japan, JP |
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Abstract: | One of the advantageous functional properties of Mg alloys (or compounds) is to exhibit the reversible hydriding reaction.
In this paper, we present our systematic studies regarding the relationship between nanometer- or atomistic-scale structures
and the specific hydriding properties of the Mg-Ni binary system, such as(1) nanostructured (n)-Mg2Ni, (2) a mixture of n-Mg2Ni and amorphous (a)-MgNi,(3) pure a-MgNi, and(4) n-MgNi2. Further studies on(5) an a-MgNi-based system for clarifying the effect of the short-range ordering on the structural and
hydriding properties and(6) a MgNi2-based system for synthesizing the new Laves phase structure are also presented. The materials science of Mg-Ni-based new
hydrides will provide indispensable knowledge for practically developing the Mg alloys as hydrogen-storage materials.
Received: 14 August 2000 / Accepted: 6 November 2000 / Published online: 9 February 2001 |
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Keywords: | PACS: 81 05 Zx 61 46 +w 61 43 Dq |
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