Precipitation of an icosahedral quasicrystal phase in Zr70Pd20Ni10 amorphous alloy

Junji Saida, Mitsuhide Matsushita, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

An icosahedral quasicrystalline phase was found to precipitate as primary crystal in the melt-spun Zr70Pe20Ni10 ternary amorphous phase with two-stage crystallization processes. The onset temperature of the transformation from amorphous to icosahedral phase is 687 K, and the decomposition of the icosahedral phase to crystalline phases takes place at 778 K, at a heating rate of 0.67 K/s. The icosahedral phase has a nearly spherical shape with a size of 5 to 20nm. The second-stage crystallization reaction results in the precipitation of Zr2Pd and Zr2Ni phases.

Original languageEnglish
Pages (from-to)543-546
Number of pages4
JournalMaterials Transactions, JIM
Volume41
Issue number4
DOIs
Publication statusPublished - 2000 Apr

Keywords

  • Amorphous phase
  • Icosahedral phase
  • Primary precipitation
  • Two-stage crystallization
  • Zirconium-palladium-nickel alloy

ASJC Scopus subject areas

  • Engineering(all)

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