Rapid solidification of indium: Modeling subcooling

This paper deals with the study of crystallization kinetics. A pure metal – indium – is subjected to different cooling rates by analyzing phenomena with a differential scanning calorimeter. Thanks to the thermal flux obtained by this device and to the temperature determined with a thermocouple insid...

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Bibliographic Details
Published in:Materials characterization 2008-05, Vol.59 (5), p.519-527
Main Authors: Le Bot, C., Delaunay, D.
Format: Article
Language:English
Subjects:
CALORIMETERS
Cooling rate
Cross-disciplinary physics: materials science
rheology
CRYSTAL GROWTH
CRYSTALLIZATION
Crystallization kinetics
Exact sciences and technology
Germination
INDIUM
KINETICS
MATERIALS SCIENCE
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
Recalescence
SIMULATION
SOLIDIFICATION
SUBCOOLING
TEMPERATURE DEPENDENCE
THERMOCOUPLES
THERMODYNAMIC PROPERTIES
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Summary:This paper deals with the study of crystallization kinetics. A pure metal – indium – is subjected to different cooling rates by analyzing phenomena with a differential scanning calorimeter. Thanks to the thermal flux obtained by this device and to the temperature determined with a thermocouple inside the metal sample, and according to the modified Avrami theory, the aim was to determine a temperature dependent function K which links thermodynamic properties to a macroscopic model of crystallization kinetics. Experiments highlight the recalescence phenomenon and show that this function has a shape similar to that of the nucleation rate.
ISSN:1044-5803
1873-4189
DOI:10.1016/j.matchar.2007.03.010