Formation of icosahedral quasicrystals in (Ag,Au)-based ternary systems

R. Tamura, A. Katahoka, K. Nishimoto, S. Takeuchi

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

We investigated the phase constitution of rapidly solidified (Ag,Au)-based ternary alloys at various compositions of (M,X)85.7RE14.3 (M = Ag, Au, X = Al,Ga,In, RE = Er,Lu). It is found that an icosahedral phase is formed at an average electrons per atom ratio close to 2.0 as well as at the composition ratio of (M,X)6RE, suggesting that these factors have crucial roles in the stability of the icosahedral phases. It is also found that the trend of the icosahedral phase formation in the Au-based alloys is quite different from that in the Ag-based alloys.

Original languageEnglish
Pages (from-to)3412-3416
Number of pages5
JournalJournal of Non-Crystalline Solids
Volume353
Issue number32-40
DOIs
Publication statusPublished - 2007 Oct 15

Keywords

  • Amorphous metals
  • Electron diffraction
  • Metallic glasses
  • Quasicrystals
  • X-ray diffraction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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