Synthesis of Al-Cr decagonal quasicrystal nanoparticles and their temperature of phase transformation to stable crystal phase

Osamu Kido, Mami Kurumada, Katsuya Kamitsuji, Toshiaki Tanigaki, Takeshi Sato, Yuki Kimura, Hitoshi Suzuki, Yoshio Saito, Chihiro Kaito

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The synthesis of Al-Cr single quasicrystal (QC) nanoparticles of the decagonal phase was achieved by introducing an advanced gas flow evaporation method. By obtaining successive electron diffraction patterns for single-QC nanoparticles, the phase transformation temperature of a single-QC nanoparticle was determined to be 700 °C. It was also determined that part of the QC nanoparticle decomposed into hex-Al8Cr5 and Al during the phase transformation. Since the grain growth did not occur during the phase transformation in the present experiment, the inherent phase transformation temperature could be measured.

Original languageEnglish
Pages (from-to)169-173
Number of pages5
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume31
Issue number2
DOIs
Publication statusPublished - 2006 Mar

Keywords

  • Aluminum alloys
  • Electron diffraction
  • Nanocrystalline materials
  • Phase transformations
  • Quasicrystals

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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