Heat capacity and thermal expansion of a decagonal Al-Co-Ni quasicrystal

A. Inaba, R. Lortz, C. Meingast, R. Lortz, J. Q. Guo, A. P. Tsai

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Heat capacities and thermal expansion coefficients for a decagonal Al72Co16Ni12 single-grain quasicrystal were determined in the temperature range 5-300 K. The linear thermal expansion coefficient obtained at 300 K parallel to the ten-fold axis is approximately 10% larger than that perpendicular to the axis. This anisotropy becomes more prominent at low temperatures, resulting in quite anisotropic Grüneisen parameters. The measurements were also made for comparison for an icosahedral (isotropic) Al71.7Pd19.4Re8.9 single-grain quasicrystal.

Original languageEnglish
Pages (from-to)302-305
Number of pages4
JournalJournal of Alloys and Compounds
Volume342
Issue number1-2
DOIs
Publication statusPublished - 2002 Aug 14
Externally publishedYes

Keywords

  • Grüneisen parameter
  • Heat capacity
  • Quasicrystal
  • Thermal expansion

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Heat capacity and thermal expansion of a decagonal Al-Co-Ni quasicrystal'. Together they form a unique fingerprint.

Cite this