Formation of icosahedral quasicrystalline phase in Zr70Ni10M20(M=Pd,Au,Pt) ternary metallic glasses

J. Saida, M. Matsushita, C. Li, A. Inoue

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Abstract

An icosahedral quasicrystalline phase was confirmed as a primary precipitation phase in melt-spun Zr70Ni10M20 (M = Pd, Au and Pt) ternary metallic glasses with two-stage crystallization process. The onset temperature of the transformation from amorphous to icosahedral phase are 687 K for Pd, 754 K for Au and 783 K for Pt at a heating rate of 0.67 K s-1. The size of the icosahedral particles is in the range of 5-20 nm. The second crystallization reaction results in the formation of Zr2Ni+Zr2Pd and Zr2Ni+ZrPt phases in the Zr-Ni-Pd and Zr-Ni-Pt alloys, respectively, and Zr3Au phase in the Zr-Ni-Au alloy through a single exothermic reaction. The formation of nanoscale icosahedral phase indicates the possibility that icosahedral short-range order exists in the glassy state.

Original languageEnglish
Pages (from-to)3558-3560
Number of pages3
JournalApplied Physics Letters
Volume76
Issue number24
DOIs
Publication statusPublished - 2000 Jun 12
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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