Formation of icosahedral quasicrystals in (Ag,Au)-based ternary systems

R. Tamura, A. Katahoka, K. Nishimoto, S. Takeuchi

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)

    Abstract

    We investigated the phase constitution of rapidly solidified (Ag,Au)-based ternary alloys at various compositions of (M,X)85.7RE14.3 (M = Ag, Au, X = Al,Ga,In, RE = Er,Lu). It is found that an icosahedral phase is formed at an average electrons per atom ratio close to 2.0 as well as at the composition ratio of (M,X)6RE, suggesting that these factors have crucial roles in the stability of the icosahedral phases. It is also found that the trend of the icosahedral phase formation in the Au-based alloys is quite different from that in the Ag-based alloys.

    Original languageEnglish
    Pages (from-to)3412-3416
    Number of pages5
    JournalJournal of Non-Crystalline Solids
    Volume353
    Issue number32-40
    DOIs
    Publication statusPublished - 2007 Oct 15

    Keywords

    • Amorphous metals
    • Electron diffraction
    • Metallic glasses
    • Quasicrystals
    • X-ray diffraction

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Ceramics and Composites
    • Condensed Matter Physics
    • Materials Chemistry

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