Is there hidden structural inhomogeneity in Zr-based bulk metallic glasses?

Osami Haruyama, Hiroyuki Sawada, Kazuhiro Yoshikawa, Yoshihiko Yokoyama

Research output: Contribution to journalArticlepeer-review

Abstract

The inhomogeneous character of structural relaxation in Zr-based bulk metallic glass (BMG) was investigated from both aspects of the fine structure of free volume, i.e. like the identification of n-, p-type defects, and the chemical short-range order (CSRO) induced by thermal treatment. At least within volume relaxation used in the present study the fine structure of free volume could not be detected. On the other hand, the CSRO process was confirmed to take place in a Zr50Cu40Al10 BMG by electrical resistance experiments. Although the fine structure of free volume could not be observed in the present glass, the existence of the CSRO process suggests any structural inhomegeneity in BMGs.

Original languageEnglish
Pages (from-to)57-62
Number of pages6
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume59
Issue number2
DOIs
Publication statusPublished - 2012 Feb 1

Keywords

  • CSRO process
  • Free volume
  • Structural relaxation
  • TSRO process
  • Volume relaxation

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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