In situ phase separation and flow behavior in the glass transition region

Dmitri V. Louzguine-Luzgin, Takeshi Wada, Hidemi Kato, John Perepezko, Akihisa Inoue

研究成果: Article査読

21 被引用数 (Scopus)

抄録

The temperature dependence of length change and viscous flow of the Cu36Zr48Al8Ag8 glassy alloy is examined in both the glass transition and supercooled liquid regions. Moreover, this alloy is found to exhibit phase separation rather by binodal mechanism in the glassy phase prior to crystallization. There is an apparent decrease in viscosity observed upon crystallization that is connected with the densification of the sample, but the intrinsic viscosity does not rise significantly until the initial crystallization process is almost complete. During the process the partly crystallized supercooled liquid still behaves like a fluid until a large fraction of the crystalline phase (∼90%) is formed. This new insight on flow behavior opens up possibilities for innovative processing of precise bulk shapes with high nanocrystal densities.

本文言語English
ページ(範囲)1235-1239
ページ数5
ジャーナルIntermetallics
18
6
DOI
出版ステータスPublished - 2010 6

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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