Structural study of Zr50Cu50 amorphous alloy by anomalous X-ray scattering coupled with reverse monte-carlo simulation

T. Kawamata, Y. Yokoyama, M. Saito, K. Sugiyama, Y. Waseda

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Anomalous X-ray scattering (AXS) analysis was applied for the structural analysis of a rapidly quenched ZrsoCujo amorphous alloy. The present AXS analysis provided the environmental structural information round Cu and Zr, and the subsequent reverse Monte Carlo (RMC) simulation allowed us to obtain three partial pair distribution functions together with a three-dimensional structural model. The Voronoi polyhedral analysis of the nearest-neighbor region confirms that the structural features are similar to those of the dense random packing of hard spheres (DRPHS) model. The chemical oscillatory structure composed of alternating Cu-rich and Zr-rich coordination shells was realized in the middle range, up to 0.8 nm. The shell structure is suggested to be one of the fundamental structural features of medium-range ordering in the ZT 50CU50 amorphous alloy.

Original languageEnglish
Pages (from-to)1796-1801
Number of pages6
JournalMaterials Transactions
Volume51
Issue number10
DOIs
Publication statusPublished - 2010 Oct

Keywords

  • Amorphous alloy
  • Anomalous X-ray scattering
  • Reverse monte-carlo simulation
  • Zirconium-copper

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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