Local structures around Zn and Y in the melt-quenched Mg97Zn1Y2 ribbon

Makoto Matsuura, Masaki Sakurai, Kenji Amiya, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

XAFS measurements of the Zn and Y K-edges are carried out as well as X-ray diffraction for the as-quenched and annealed Mg97Zn1Y2 melt-quenched ribbons. Analyses of the EXAFS spectra χ(k) show that the amount of dissolved Zn and Y in hcp-Mg is very small. And the local structure around Zn is similar to that of Zn in the CsCl-type YZn compound and that for Y in a mixture of YZn and CsCl-type MgY. The annealing at 600 °C for 30 min does not affect significantly EXAFS spectra and X-ray diagrams. The strong bonding between Y and Zn and the tendency to form YZn clusters may be responsible for the high yield strength of Mg97Zn1Y2.

Original languageEnglish
Pages (from-to)240-245
Number of pages6
JournalJournal of Alloys and Compounds
Volume353
Issue number1-2
DOIs
Publication statusPublished - 2003 Apr 7
Externally publishedYes

Keywords

  • Amorphous materials
  • Crystal structure
  • EXAFS
  • Rare earth compounds

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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