A Modified Glass Formation Criterion for Various Glass Forming Liquids with Higher Reliability

X. H. Du, J. C. Huang*

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

8 Citations (Scopus)

Abstract

A modified indicator of the glass forming ability (GFA) from the previous γ = Tx/(Tl+Tg) for various glass forming liquids is proposed based on a conceptual approach which combines more acceptable physical metallurgy views in terms of the time-temperature- transformation diagrams. It is found that the glass forming ability for glass forming liquids is closely associated mainly with two factors, i.e. (2Tx-Tg) and Tl (wherein Tx is the onset crystallization temperature, Tg the glass transition temperature, and Tl the liquidus temperature), and could be predicated by a unified parameter γm defined as (2Tx-Tg)/Tl. This approach is confirmed and validated by experimental data in various glass forming systems including oxide glasses, cryoprotectants and metallic glasses, which all shows a higher reliability when their glass forming ability is predicted by the modified parameter.
Original languageEnglish
Pages (from-to)1335-1338
JournalChinese Physics Letters
Volume24
Issue number5
DOIs
Publication statusPublished - May 2007
Externally publishedYes

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