Correlation between volumetric change and glass-forming ability of metallic glass-forming alloys

E. S. Park, D. H. Kim

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

We draw attention to the relationship between volumetric change and glass-forming ability (GFA) in various metallic glass-forming alloys. The critical cooling rate can be expressed as Rc =2.5× 10-5 exp (5.0× 102 Vlg), where Vlg is defined as (Vl - Vg) Vl. We specifically plot the temperature dependence of specific volume for Ca65 Mg15 Zn20 alloy, and then demonstrate that the larger slope between Vl and Vg, closely related to thermal expansion coefficient, corresponds well to the GFA of the alloy. This insight can provide a clue if the correlations are to be used in the appreciation of glass formation and in the development of an alloy system with enhanced GFA.

Original languageEnglish
Article number091915
JournalApplied Physics Letters
Volume92
Issue number9
DOIs
Publication statusPublished - 2008

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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