Low temperature elastic and anelastic properties of an i-AlPdMn single quasicrystal

R. Tarumi, Y. Yoshimoto, S. Shiomi, H. Ogi, M. Hirao, A. P. Tsai

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The complete elastic constant tensor, i.e. the real and imaginary parts Cijkl and Qi j k l- 1, of icosahedral AlPdMn quasicrystal were measured at megahertz frequencies, from 4 K to room temperature, using electromagnetic acoustic resonance. The temperature dependence of Cijkl was analyzed using an Einstein oscillator model and a quasiharmonic approximation. The overall mode Grüneisen parameter γ is 2.0, in agreement with a previous thermal expansion measurement. Internal friction Qi j k l- 1 behaved normally throughout the measured temperature range. These results suggest that the lattice anharmonicity of i-AlPdMn is similar to usual crystalline materials despite its significant difference in structure.

Original languageEnglish
Pages (from-to)39-42
Number of pages4
JournalMaterials Science and Engineering A
Volume442
Issue number1-2 SPEC. ISS.
DOIs
Publication statusPublished - 2006 Dec 20

Keywords

  • Elastic modulus
  • Icosahedral quasicrystal
  • Internal friction
  • Lattice anharmonicity
  • Ultrasound spectroscopy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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    Tarumi, R., Yoshimoto, Y., Shiomi, S., Ogi, H., Hirao, M., & Tsai, A. P. (2006). Low temperature elastic and anelastic properties of an i-AlPdMn single quasicrystal. Materials Science and Engineering A, 442(1-2 SPEC. ISS.), 39-42. https://doi.org/10.1016/j.msea.2006.02.223