Growth of large single-grain quasicrystals in the Ag-In-Yb system by Bridgman method

Can Cui, An Pang Tsai

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

Well-defined single-grain Ag-In-Yb icosahedral quasicrystals of order of centimeter have been grown by the Bridgman method. The scanning electron microscopy (SEM) observation showed that the compositional distribution in the single-grain quasicrystals is uniform and Laue X-ray diffraction measurements verified the formation of single-grain icosahedral quasicrystals. The natural growth direction of the single-grain quasicrystals is close to a direction parallel to a 2-fold axis. It turns out that the Yb content in the initial melt limited within 15-16 at.% is a critical factor determining the formation of single-grain quasicrystal. Based on the experimental result, the mechanism of the growth of single-grain quasicrystal and formation of intermediate zone between quasicrystal and approximant phases are discussed.

Original languageEnglish
Pages (from-to)131-135
Number of pages5
JournalJournal of Crystal Growth
Volume312
Issue number1
DOIs
Publication statusPublished - 2009 Dec 15
Externally publishedYes

Keywords

  • A1. Interface
  • A2. Bridgman technique
  • A2. Single crystal growth
  • B1. Quasicrystal

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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