Glass-transition process in an Au-based metallic glass

Dmitri V. Louzguine-Luzgin; Ichiro Seki; Sergey V. Ketov; Larissa V. Louzguina-Luzgina; Vladislav I. Polkin; Na Chen; Hans Fecht; Alexander N. Vasiliev; Hitoshi Kawaji

doi:10.1016/j.jnoncrysol.2015.03.018

Glass-transition process in an Au-based metallic glass

Dmitri V. Louzguine-Luzgin, Ichiro Seki, Sergey V. Ketov, Larissa V. Louzguina-Luzgina, Vladislav I. Polkin, Na Chen, Hans Fecht, Alexander N. Vasiliev, Hitoshi Kawaji

Advanced Institute for Materials Research (AIMR)

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Abstract In the present paper, the glass-transition phenomenon in an Au-based metallic glass has been studied using a step-scan calorimetry measurement. The existence of two distinct slopes within the glass-transition region one starting at low temperature (about 340 K) and the other at higher temperature (about 380 K) likely indicates two glass-transition processes. This phenomenon is rather related to different diffusion coefficients of the alloying elements in this complex alloy in solid state. Structural relaxation of the glassy phase before reaching the glass-transition region also shows a complex behavior.

Original language	English
Article number	17346
Pages (from-to)	12-15
Number of pages	4
Journal	Journal of Non-Crystalline Solids
Volume	419
DOIs	https://doi.org/10.1016/j.jnoncrysol.2015.03.018
Publication status	Published - 2015 Jul 1

Keywords

Amorphous alloy
Bulk metallic glass
Devitrification
Nanoscale
Phase transformation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

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Glass-transition process in an Au-based metallic glass. / Louzguine-Luzgin, Dmitri V.; Seki, Ichiro; Ketov, Sergey V.; Louzguina-Luzgina, Larissa V.; Polkin, Vladislav I.; Chen, Na; Fecht, Hans; Vasiliev, Alexander N.; Kawaji, Hitoshi.

In: Journal of Non-Crystalline Solids, Vol. 419, 17346, 01.07.2015, p. 12-15.

Research output: Contribution to journal › Article › peer-review

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abstract = "Abstract In the present paper, the glass-transition phenomenon in an Au-based metallic glass has been studied using a step-scan calorimetry measurement. The existence of two distinct slopes within the glass-transition region one starting at low temperature (about 340 K) and the other at higher temperature (about 380 K) likely indicates two glass-transition processes. This phenomenon is rather related to different diffusion coefficients of the alloying elements in this complex alloy in solid state. Structural relaxation of the glassy phase before reaching the glass-transition region also shows a complex behavior.",

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AU - Louzguine-Luzgin, Dmitri V.

AU - Seki, Ichiro

AU - Ketov, Sergey V.

AU - Louzguina-Luzgina, Larissa V.

AU - Polkin, Vladislav I.

AU - Chen, Na

AU - Fecht, Hans

AU - Vasiliev, Alexander N.

AU - Kawaji, Hitoshi

PY - 2015/7/1

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N2 - Abstract In the present paper, the glass-transition phenomenon in an Au-based metallic glass has been studied using a step-scan calorimetry measurement. The existence of two distinct slopes within the glass-transition region one starting at low temperature (about 340 K) and the other at higher temperature (about 380 K) likely indicates two glass-transition processes. This phenomenon is rather related to different diffusion coefficients of the alloying elements in this complex alloy in solid state. Structural relaxation of the glassy phase before reaching the glass-transition region also shows a complex behavior.

AB - Abstract In the present paper, the glass-transition phenomenon in an Au-based metallic glass has been studied using a step-scan calorimetry measurement. The existence of two distinct slopes within the glass-transition region one starting at low temperature (about 340 K) and the other at higher temperature (about 380 K) likely indicates two glass-transition processes. This phenomenon is rather related to different diffusion coefficients of the alloying elements in this complex alloy in solid state. Structural relaxation of the glassy phase before reaching the glass-transition region also shows a complex behavior.

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KW - Bulk metallic glass

KW - Devitrification

KW - Nanoscale

KW - Phase transformation

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