Hydrogen isotope electromigration and impurity effect in vanadium

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

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    7 Citations (Scopus)


    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.

    Original languageEnglish
    Pages (from-to)38-43
    Number of pages6
    JournalJournal of Alloys and Compounds
    Issue number1-2
    Publication statusPublished - 1999

    All Science Journal Classification (ASJC) codes

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


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