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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Effects of ion Irradiation on hychiding rate of Mm based hydrogen storage alloy
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Effects of ion Irradiation on hychiding rate of Mm based hydrogen storage alloy

机译：离子辐照对Mm基储氢合金离子化速率的影响

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摘要

The effect of ion irradiation on the rate of the electrochemical hydrogen absorption by Mm-Ni based alloy was investigated. Since the low-energy ion irradiation is quite useful for surface modification of materials, it is expected that the hydriding properties of Mm samples were improved by ion irradiation. The research, which aimed at the improvement in occlusion ability of Mm alloy using ion irradiation, is the first trial in the world. In this study, the ion irradiation was made with H~+, Ar~+ and K~+ in the acceleration energy range of 350 keV, up to a dose of 1 x 10~(16) cm~ -2 using Takasaki Ion Accelerators for Advanced Radiation Application (TIARA) in Japan Atomic Energy Research Institute (JAERI). The initial hydrogen absorption rate was increased as the ion dose was increased. These results clearly suggest that the ion irradiation induces a high concentration of vacancies that trap high concentration of hydrogen atoms at the initial stage of the reaction. The induction of a high concentration of vacancies in metal by the ion irradiation is found effective to enhance the initial activation in the electrochemical hydriding process of MmNi_3.
机译：研究了离子辐照对Mm-Ni基合金电化学电化学吸氢率的影响。由于低能离子辐照对于材料的表面改性非常有用，因此期望通过离子辐照改善Mm样品的氢化性能。旨在通过离子辐照提高Mm合金的吸留能力的这项研究是世界上第一项试验。在这项研究中，使用高崎离子加速器在350 keV的加速能量范围内用H〜+，Ar〜+和K〜+进行了离子辐照，剂量达到1 x 10〜（16）cm〜-2。日本原子能研究所（JAERI）的高级辐射应用（TIARA）。随着离子剂量的增加，初始氢吸收速率增加。这些结果清楚地表明，离子辐射诱导了高浓度的空位，该空位在反应的初始阶段捕获了高浓度的氢原子。发现通过离子辐射在金属中诱导高浓度的空位有效增强了MmNi_3电化学氢化过程中的初始活化。

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