Materials science of Mg-Ni-based new hydrides
Materials science of Mg-Ni-based new hydrides
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DOI：
10.1007/s003390100771
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发表时间：
2001-02
期刊：
影响因子：
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通讯作者：
S. Orimo;H. Fujii
中科院分区：
文献类型：
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作者：
S. Orimo;H. Fujii
镁合金（或镁化合物）的一个有利的功能特性是表现出可逆的双金属化反应。本文系统地研究了Mg-Ni二元体系的纳米级或原子级结构与其特殊性能之间的关系，如（1）纳米结构的（n）-Mg_2Ni，（2）n-Mg_2Ni和非晶（a）-MgNi的混合物，（3）纯a-MgNi，（4）n-MgNi_2。进一步研究了（5）a-MgNi基体系的短程有序化对结构和性能的影响;（6）MgNi_2基体系的Laves相结构。Mg-Ni基新型储氢合金的材料学研究将为镁合金储氢材料的实际开发提供不可缺少的知识。
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.