Nano icosahedral phase formation by crystallization of Zr-based ternary glassy alloys

Junji Saida, Mitsuhide Matsushita, Akihisa Inoue

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The formation of an icosahedral phase is found as a primary phase in the Zr-Ni-M (M = Pd, Au, Pt), Zr-TM-Pd (TM = Fe, Co, Cu), Zr-Pt-Pd and Zr-Au-Pd ternary glassy alloys. The icosahedral particle has a nearly spherical morphology and grain size in the diameter range below 50 nm. The precipitation of the nano icosahedral phase from the glassy phase implies the existence of an icosahedral atomic configuration. The icosahedral atomic configuration is presumably stabilized by the mixed structure with two strong chemical affinities of two Zr-M pairs or Zr-M and Zr-Ni atomic pairs, which contributes to the restraint of long-range atomic rearrangements.

Original languageEnglish
Pages (from-to)1245-1249
Number of pages5
JournalScripta Materialia
Volume44
Issue number8-9
DOIs
Publication statusPublished - 2001 May 18
Externally publishedYes

Keywords

  • Annealing
  • Metallic glasses
  • Phase transformations
  • Quasicrystals
  • Transmission electron microscope (TEM)

ASJC Scopus subject areas

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

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