Phason strains and periodicity in al-ru-cu icosahedral quasicrystals

Kenji Hiraga, Kap Ho Lee, Makoto Hirabayashi, An Pang Tsai, Akihisa Inoue, Tsuyoshi Masumoto

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Phason strains in a stable AN-Ru-Cu quasicrystal prepared by a conventional melting method were examined by electron diffraction and high-resolution electron microscopy. The phason strains are frozen in an as-cast AN-Ru-Cu alloy, and then are relaxed and virtually disappear by annealing at a high temperature of 1118 K which is about 50 K below the melting point of the alloy. The frozen phason strains, which are homogeneous at a μm scale having a long-range correlation, show a tendency to produce a periodicity along one axial direction.

Original languageEnglish
Pages (from-to)L1624-L1627
JournalJapanese journal of applied physics
Issue number9 A
Publication statusPublished - 1989 Sept 1
Externally publishedYes


  • Al-Ru-Cu alloy
  • Electron diffraction
  • High-resolution electron microscopy
  • Icosahedral quasicrystal
  • Phason strain
  • Quasicrystal

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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