Structural variations in local areas of an al70ni15fe15 decagonal quasicrystal and the interpretation by the 1-nm column-pair scheme

Tadahiro Yokosawa, Koh Saitoh, Michiyoshi Tanaka, An Pang Tsai

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    3 Citations (Scopus)

    Abstract

    Structural variations in local areas such as the star-shaped and butterfly-shaped tiles of a noncentrosymmetric decagonal quasicrystal of Al70Ni15Fe15 have been investigated by using the high-angle annular dark-field scanning transmission electron microscope method. It has been demonstrated that the variations of the star-shaped and butterfly-shaped tiles in Al70Ni15Fe15 are uniquely decomposed into the 1-nm column-pairs [Saitoh et al., J. Phys. Soc. Jpn. 68 (1999) 2886], which is the basic structural unit of the -inflated Al13Co4 approximant.

    Original languageEnglish
    Pages (from-to)169-173
    Number of pages5
    JournalJournal of Alloys and Compounds
    Volume342
    Issue number1-2
    DOIs
    Publication statusPublished - 2002 Aug 14

    Keywords

    • Fivefold-symmetry cluster-column
    • HAADF-STEM
    • Noncentrosymmetric decagonal quasicrystal
    • τ-AlCo approximant

    ASJC Scopus subject areas

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

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