Isoconversional analysis of copper recrystallization

Recrystallization of Cu deformed under compression has been monitored by differential scanning calorimetry (DSC) with experiments carried out at constant heating rate. From these experiments, an isothermal crystallization process has been predicted by the classical Kolmogorov–Johnson–Mehl–Avrami (KJ...

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Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2016-08, Vol.125 (2), p.667-672
Main Authors: Pérez, Abel, Lopez-Olmedo, Joan Pere, Farjas, Jordi, Roura, Pere
Format: Article
Language:English
Subjects:
Activation energy
Analytical Chemistry
Anàlisi tèrmica
Calorimetria
Calorimetry
Chemistry
Chemistry and Materials Science
Cristal·lització
Crystallization
Inorganic Chemistry
Measurement Science and Instrumentation
Physical Chemistry
Polymer Sciences
Thermal analysis
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Summary:Recrystallization of Cu deformed under compression has been monitored by differential scanning calorimetry (DSC) with experiments carried out at constant heating rate. From these experiments, an isothermal crystallization process has been predicted by the classical Kolmogorov–Johnson–Mehl–Avrami (KJMA) kinetics and by model-free isoconversional analysis. Whereas prediction by KJMA does not match the experimental curve, the isoconversional prediction is successful. The paper also highlights the need to correct the raw DSC curves to obtain the actual sample temperature and to avoid curve distortion due to thermal inertia.
ISSN:1388-6150
1588-2926
DOI:10.1007/s10973-016-5307-z