New method for determination of hidden supercooled liquid region of TiZr-based amorphous alloys

T.H. Li; Y.C. Liao; S.M. Song; V.T. Nguyen; P.H. Tsai; J.S.C. Jang; J.C. Huang

doi:10.1016/j.jnoncrysol.2018.12.026

Author(s)

T.H. Li
Y.C. Liao
S.M. Song
V.T. Nguyen
P.H. Tsai
J.S.C. Jang

Related Research Unit(s)

Detail(s)

Original language	English
Pages (from-to)	1-5
Journal / Publication	Journal of Non-Crystalline Solids
Volume	510
Online published	20 Feb 2019
Publication status	Published - 15 Apr 2019

Link(s)

DOI	DOI https://doi.org/10.1016/j.jnoncrysol.2018.12.026 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85061658053&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(13da5497-f428-48ad-876a-7d2f123a3df4).html

Abstract

TiZr-based metallic glass has a unique glass transition point. It is located at the top of the first exothermic peak instead of at the typical endothermic transformation reaction before the supercooled liquid region (∆T_x). It is hard to identify the glass transition temperature (T_g) and ∆T_x of these TiZr-based amorphous alloys by an exothermic-exothermic reaction. In this study, based on the physical characteristics of the free volume reduction, KWW-exponent β, the activation energy for structural relaxation (Q_relax), and the incubation time by isothermal annealing in DSC analyses, the exact T_g point can be precisely identified. As a result, the Ti₄₂Zr₄₂Ta₃Si₁₀Sn₃ amorphous alloy presents an extra-wide supercooled liquid region (∆T_x), up to 149 K.

Research Area(s)

Amorphous alloy, Free volume, Glass transition temperature, Incubation time, KWW-exponent β

Citation Format(s)

[ RIS ] [ BibTeX ]

New method for determination of hidden supercooled liquid region of TiZr-based amorphous alloys. / Li, T.H.; Liao, Y.C.; Song, S.M. et al.
In: Journal of Non-Crystalline Solids, Vol. 510, 15.04.2019, p. 1-5.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Li, TH, Liao, YC, Song, SM, Nguyen, VT, Tsai, PH, Jang, JSC & Huang, JC 2019, 'New method for determination of hidden supercooled liquid region of TiZr-based amorphous alloys', Journal of Non-Crystalline Solids, vol. 510, pp. 1-5. https://doi.org/10.1016/j.jnoncrysol.2018.12.026

Li, T. H., Liao, Y. C., Song, S. M., Nguyen, V. T., Tsai, P. H., Jang, J. S. C., & Huang, J. C. (2019). New method for determination of hidden supercooled liquid region of TiZr-based amorphous alloys. Journal of Non-Crystalline Solids, 510, 1-5. Advance online publication. https://doi.org/10.1016/j.jnoncrysol.2018.12.026

Li TH, Liao YC, Song SM, Nguyen VT, Tsai PH, Jang JSC et al. New method for determination of hidden supercooled liquid region of TiZr-based amorphous alloys. Journal of Non-Crystalline Solids. 2019 Apr 15;510:1-5. Epub 2019 Feb 20. doi: 10.1016/j.jnoncrysol.2018.12.026

Li, T.H. ; Liao, Y.C. ; Song, S.M. et al. / New method for determination of hidden supercooled liquid region of TiZr-based amorphous alloys. In: Journal of Non-Crystalline Solids. 2019 ; Vol. 510. pp. 1-5.