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, Ampo Sai

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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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