Change of quasilattice constant during amorphous-to-quasicrystalline phase transformation in Zr65Al7.5Ni10Cu7.5Ag10 metallic glass

Jianzhong Jiang, A.R. Rasmussen, C.H. Jensen, Y. Lin, P.L. Hansen

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Abstract

The amorphous-to-quasicrystalline phase transformation in a Zr65Al7.5Ni10Cu7.5Ag10 metallic glass has been investigated by monitoring the quasilattice constant and the composition of quasicrystalline particles in the samples annealed in vacuum at 663 K for various times. It is found that the quasilattice constant decreases with annealing time and saturates after 90 min while the zirconium and silver contents in quasicrystalline particles differ from those in the remaining amorphous matrix. The results provide evidence that the amorphous-to-quasicrystalline phase transformation in the Zr65Al7.5Ni10Cu7.5Ag10 metallic glass is a nonpolymorphous reaction.
Original languageEnglish
JournalApplied Physics Letters
Volume80
Issue number12
Pages (from-to)2090-2092
ISSN0003-6951
DOIs
Publication statusPublished - 2002

Bibliographical note

Copyright (2002) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Keywords

  • SMALL PARTICLES
  • ICOSAHEDRAL PHASE
  • HIGH-STRENGTH
  • PD
  • QUASI-CRYSTALLINE PHASE
  • OXYGEN
  • BULK GLASS
  • SUPERCOOLED LIQUID REGION
  • NI-AL ALLOYS
  • PRECIPITATION

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