High resolution X-ray and neutron diffraction of super- and disorder in decagonal Al-Co-Ni

E. Weidner, K. Hradil, F. Frey, M. De Boissieu, A. Létoublon, W. Morgenroth, H. G. Krane, M. Capitan, A. P. Tsai

    研究成果: Article査読

    3 被引用数 (Scopus)

    抄録

    Synchrotron measurements at DESY and ESRF of decagonal quasicrystals with the nominal composition Al70Co15Ni15 and Al72Co16Ni12, show that Bragg reflections with high |Hi*| values are surrounded by up to four weak subsidiary peaks. The positions of these additional peaks depend solely on the position of the Bragg reflection in the reciprocal perpendicular subspace and can be explained by a linear phason strain model. This model sheds new light on the current superorder models and is a further step towards an understanding of the real structures of decagonal quasicrystals.

    本文言語English
    ページ(範囲)308-314
    ページ数7
    ジャーナルMaterials Science and Engineering A
    294-296
    DOI
    出版ステータスPublished - 2000 12月 15

    ASJC Scopus subject areas

    • 材料科学(全般)
    • 凝縮系物理学
    • 材料力学
    • 機械工学

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