Effect of coexistent hydrogen isotopes on tracer diffusion of tritium in alpha phase of group-V metal-hydrogen systems

Kan Sakamoto, Kenichi Hashizume, Masayasu Sugisaki

    Research output: Contribution to journalArticle

    Abstract

    Tracer diffusion coefficients of tritium in the alpha phase of group-V metal-hydrogen systems, α- MH(D)xTy (M = V and Ta; × »y), were measured in order to clarify the effects of coexistent hydrogen isotopes on the tritium diffusion behavior. The hydrogen concentration dependence of such behavior and the effects of the coexistent hydrogen isotopes (protium and deuterium) were determined. The results obtained in the present (for V and Ta) and previous (for Nb) studies revealed that tritium diffusion was definitely dependent on hydrogen concentration but was not so sensitive to the kind of coexistent hydrogen isotopes. By summarizing those data, it was found that the hydrogen concentration dependence of the tracer diffusion coefficient of tritium in the alpha phase of group-V metals could be roughly expressed by a single empirical curve.

    Original languageEnglish
    Pages (from-to)26-30
    Number of pages5
    Journaljournal of nuclear science and technology
    Volume46
    Issue number1
    DOIs
    Publication statusPublished - Feb 10 2009

    All Science Journal Classification (ASJC) codes

    • Nuclear and High Energy Physics
    • Nuclear Energy and Engineering

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