Single-crystal growth of the Al-Cu-Ru icosahedral quasicrystal from the ternary melt

J. Q. Guo, H. Hasegawa, Ampo Sai, S. Takeuchi

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


An Al-Cu-Ru partial phase diagram involving the icosahedral quasicrystal has been constructed along an Al62Cu38-xRux (x = 2.5-25at%) isopleth. The icosahedral quasicrystal forms at 1020 °C via a peritectic reaction between a liquid and Al68Cu12Ru20 phase and coexists with a liquid phase at temperature below the peritectic reaction. The icosahedral quasicrystal solidifies as a primary phase in the temperature range of 800-1020 °C from the alloys in the composition range of 60-67.5at% Al, 29.5-37.5at% Cu, and 2.5-4at% Ru. On the basis of the phase diagram, single grains of the Al-Cu-Ru icosahedral quasicrystal with a maximum size of 5mm were successfully grown from Al-Cu-Ru melts.

Original languageEnglish
Pages (from-to)477-481
Number of pages5
JournalJournal of Crystal Growth
Issue number1-3
Publication statusPublished - 2002 Mar 1
Externally publishedYes


  • A1. Phase equilibria
  • A2. Single crystal growth
  • B1. Alloys

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry


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