Hydrogen permeation of the melt-spun Ni-X-Zr amorphous membranes

Shin Ichi Yamaura, Shuhei Nakata, Hisamichi Kimura, Yoichiro Shimpo, Motonori Nishida, Akihisa Inoue

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    14 Citations (Scopus)

    Abstract

    The Ni70-x/2Nb30-x/2Zrx (x = 10, 20, 30, 40 and 60 at%) amorphous alloys were prepared by the melt-spinning technique. The hydrogen permeability of those alloys was compared to derive the principles of the element addition. As the result, it was found that the hydrogen permeability of the Ni-Nb-Zr ternary amorphous alloys increases with increasing Zr content. However, the hydrogen permeation of the Ni40Zr 60 binary amorphous alloy was much smaller than that of the Ni 50Nb10Zr40 amorphous alloy. This behavior indicates that the Nb addition also improves the hydrogen permeability. Then, as a next step, we prepared the Ni-X-Zr (X = Y, Ti, Hf, V, Nb and Ta) amorphous alloys to investigate the effect of the additional elements on the hydrogen permeation of melt-spun Ni-Zr binary amorphous alloys. As the result, it was found that the additional element with higher hydrogen affinity was preferable and that the Ni content should be reduced to improve the permeability.

    Original languageEnglish
    Pages (from-to)1768-1770
    Number of pages3
    JournalMaterials Transactions
    Volume46
    Issue number8
    DOIs
    Publication statusPublished - 2005 Aug

    Keywords

    • Hydrogen separation
    • Melt-spinning
    • Metallic glass

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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