Evaluation of the liquid–solid interfacial energy from crystallization kinetic data

The kinetic data obtained from the analysis of experimental measurements of nanocrystallization in Fe 65Nb 10B 25 metallic glass are used to successfully estimate the molten alloy viscosity, Fe 23B 6 crystallization driving force and solid–liquid interface energy in the framework of the classical th...

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Bibliographic Details
Published in:Scripta materialia 2009-11, Vol.61 (9), p.879-882
Main Authors: Torrens-Serra, J., Rodriguez-Viejo, J., Clavaguera-Mora, M.T.
Format: Article
Language:English
Subjects:
Glass-forming ability
Interfacial energy
Metallic glasses
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Summary:The kinetic data obtained from the analysis of experimental measurements of nanocrystallization in Fe 65Nb 10B 25 metallic glass are used to successfully estimate the molten alloy viscosity, Fe 23B 6 crystallization driving force and solid–liquid interface energy in the framework of the classical theory of nucleation and growth. We use a Vogel–Fulcher–Tamman law for the viscosity and linear temperature dependence for the crystallization driving force and interfacial energy. A negative temperature coefficient for the crystal–melt interfacial energy is obtained. Both the thermal stability and the glass-forming ability of this alloy are discussed.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2009.07.025