Structural relationship between an icosahedral phase and a 1/1 cubic crystalline approximant in an Al-Li-Cu alloy system, studied by atomic-scale observations of electron microscopy

Toyohiko Konno, T. Ohsuna, K. Hiraga

研究成果: Conference article

5 引用 (Scopus)

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We observed cubic R-phase and icosahedral I-phases in the Al-Li-Cu system by high-resolution transmission electron microscopy (HREM). The images of both the phases taken from three-fold axes showed the presence of the same kind of atom clusters, which are most likely to be the small triacontahedra. The R-phase was found to contain stacking faults along the {110} plane. This stacking fault is created by the insertion of extra atom units, which destroys the symmetry of the lattice, yet the symmetrical configuration of the facing clusters is well preserved.

元の言語English
ページ(範囲)120-125
ページ数6
ジャーナルJournal of Alloys and Compounds
342
発行部数1-2
DOI
出版物ステータスPublished - 2002 8 14
イベントQC2001 - Sendai, Japan
継続期間: 2001 9 242001 9 28

ASJC Scopus subject areas

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

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