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Thermal Effects of Phase Transformations: A General Approach

Published online by Cambridge University Press:  26 February 2011

Alex Umantsev
Alex Umantsev*
Affiliation:
aumantsev@uncfsu.edu, Fayetteville State University, Natural Sciences, 1200 Murchison Rd., Fayetteville, NC, 28301, United States, 910-672-1449, 910-672-1159
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Abstract

All stages of phase transformations in materials, nucleation, growth, and coarsening, are subjected to thermal effects that stem from the redistribution of energy in the system like, release of latent heat and heat conduction. The thermal effects change the rate and outcome of the transformation and may result in appearance of unusual states or phases, in particular in nanosystems. This paper is not a complete account of the theory of thermal effects; it is rather a guide through many seemingly unrelated effects in different phase transformations, which in fact have unified origin. Although the dynamical Ginzburg-Landau approach will be used for the analysis of the effects, they are robust and independent of the employed theoretical methods. Another purpose of this review is to bring these effects to the attention of experimenters and motivate them on conducting new experiments in the area of phase transitions.

Keywords

phase transformationkineticsthermal conductivity

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