Glass-formation and crystallization processes in Ag-Y-Cu alloys

S. V. Ketov, L. V. Louzguina-Luzgina, A. Yu Churyumov, A. N. Solonin, D. B. Miracle, D. V. Louzguine-Luzgin, A. Inoue

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Investigation of glass-formation and crystallization processes of several alloys of Ag-Y-Cu system was conducted. The samples were produced by melt spinning and Cu-mold casting. The structure of ribbon samples was examined by X-ray diffractometry and transmission electron microscopy. Phase transformations were studied by differential scanning and isothermal calorimetry and differential thermal analysis. Despite the large difference in atomic radii between the components in the investigated system, even being produced by melt spinning technique at high cooling rate, only Ag 61Y 29Cu 10 alloy with large supercooled liquid region was found to be X-ray amorphous. A principle for obtaining an alloy with high glass forming ability involving difference in atomic radii between the alloy components is considered. Efficient cluster packing model was also tested.

Original languageEnglish
Pages (from-to)1759-1763
Number of pages5
JournalJournal of Non-Crystalline Solids
Volume358
Issue number15
DOIs
Publication statusPublished - 2012 Aug 1

Keywords

  • Ag-Y-Cu alloys
  • Amorphous structure
  • Glass crystallization
  • Glass-formation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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