Preparation of Decagonal Al–Ni–Co Single Quasicrystal by Czochralski Method

  • Yokoyama Y.
    Faculty of Engineering, Himeji Institute of Technology
  • Note R.
    Institute for Materials Research, Tohoku University
  • Kimura S.
    Faculty of Engineering, Himeji Institute of Technology
  • Inoue A.
    Institute for Materials Research, Tohoku University
  • Fukaura K.
    Faculty of Engineering, Himeji Institute of Technology
  • Sunada H.
    Faculty of Engineering, Himeji Institute of Technology

書誌事項

タイトル別名
  • Preparation of Decagonal Al–Ni–Co Single Quasicrystal by Czochralski Method
  • Preparation of Decagonal Al Ni Co Singl
公開日
1997
DOI
  • 10.2320/matertrans1989.38.943
公開者
社団法人 日本金属学会

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説明

We constructed a partial isothermal phase diagram including a decagonal (d-) phase in the Al–Ni–Co system and determined the composition of the liquid in equilibrium with the stoichiometric d-phase. The d-phase is formed through a peritectic reaction between the B2 phase and the liquid phase. A seed d-phase prepared by selecting an optimum composition of the liquid phase was used for growing a large-scale d-quasicrystal by the Czochralski method. As a result, we have product a single decagonal quasicrystal with the size of 60 mm in length and 1 to 7 mm in diameter and the mean composition of Al72.2Ni12.1Co15.7.

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