Hydrogen isotope electromigration and impurity effect in vanadium

K. Fujii, Kenichi Hashizume, Y. Hatano, M. Sugisaki

    研究成果: Contribution to journalArticle査読

    7 被引用数 (Scopus)

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    The effective charge of protium and tritium in the α-phase of vanadium has been measured by means of a stationary state electromigration experiment in a temperature region from 323 to 523 K. The obtained results have shown a definite mass dependence such as Z*(T)>Z*(H) in a lower temperature region and a tendency that the effective charge of H and T approaches a same value in a higher temperature region. By comparing this result with the data for protium and deuterium previously reported by other investigators, we have concluded a mass dependence according to the sequence Z*(T)>Z*(D)>Z*(H) in a lower temperature region. The origins of this mass dependence has been discussed by decomposing the effective charge into the direct and wind charges. The trapping effect due to a small zirconium impurity in the investigated vanadium specimen on the electromigration of hydrogen isotopes has been also examined and the trapping model has been discussed.

    本文言語英語
    ページ(範囲)38-43
    ページ数6
    ジャーナルJournal of Alloys and Compounds
    282
    1-2
    DOI
    出版ステータス出版済み - 1 1 1999

    All Science Journal Classification (ASJC) codes

    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys
    • Materials Chemistry

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