Chemical order in an Al-Pd-Mn icosahedral quasicrystal

An Pang Tsai, Akihisa Inoue, Tsuyoshi Masumoto

    研究成果: Article査読

    62 被引用数 (Scopus)

    抄録

    The icosahedral structure of Al70Pd20Mn10and Al65Cu20Fe15quasicrystals in rapidly solidified and annealed states has been examined by electron and X-ray diffraction techniques. Broadening and distortion of the diffraction peaks due to atomic disordering were observed in rapidly solidified Al65Cu20Fe15, but were not observed in rapidly solidified Al70Pd20Mn10. The rapidly solidified Al70Pd20Mn10quasicrystal has a highly ordered atomic arrangement which is nearly the same as that for an Al65Cu20Fe15quasicrystal annealed at a temperature just below the melting point. On the basis of the thermodynamical data, it is presumed that a strong chemical order(bonding) between Pd and A1 or Mn prevents the Al70Pd20Mn10quasicrystal from generating atomic disordering and phason strains during rapid solidification.

    本文言語English
    ページ(範囲)95-100
    ページ数6
    ジャーナルPhilosophical Magazine Letters
    62
    2
    DOI
    出版ステータスPublished - 1990 8月

    ASJC Scopus subject areas

    • 凝縮系物理学

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