# The Effect of Strain on Thermodynamics of the Weakly First-Order Phase Transition

Source: [The Effect of Strain on Thermodynamics of the Weakly First-Order Phase Transition](<https://www.sota2.com/research/paper/68fa216f7a2b558e29337388>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T01:07:48.775Z

Authors: M.A.Fradkin

Published: 1995-08-08T21:20:57.000Z

## Abstract

Elastic matrix distortion around a growing inclusion of a new phase is analyzed and the associated contribution to the Gibbs free energy is considered. The constant-composition transformation from the parent to product phase is considered within the frame of Landau theory of phase transitions. The volume misfit between the inclusion and matrix is assumed to originate from the transformation volume change coupled with the phenomenological order parameter. The minimization of free energy with respect to the volume change and order parameter gives the dependence of Gibbs energy on the volume fraction of the product phase. The transformation proceeds in a finite temperature region with the equilibrium volume fraction dependent on temperature rather than at a fixed temperature as it would be expected for the first-order transition. The activation processes are shown to be irrelevant and the transformation kinetics is found to be fluctuationless.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/mtrl-th/9508007>)

[PDF](<https://arxiv.org/pdf/mtrl-th/9508007.pdf>)