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Abstract: The phase transition kinetics in three phase systems was investigated usingthe numerically efficient cell dynamics method. A phasefield model with asimple analytical free energy and single order parameter was used to study thekinetics and the thermodynamics of a three-phase system. This free energy isable to achieve three phases coexistence, which for simplicity we call \alpha,\beta and \gamma phases. Our study focused on the kinetics of phase transitionrather than the nucleation of a seed of a new phase that was introduced intothe matrix of the old phase when the relative stability of the three phaseswere changed. We found dynamical as well as kinetically arrested staticscenarios in the appearance of the macroscopic metastable phase. A few otherinteresting scenarios of the kinetics of phase transition in this three-phasesystem will be demonstrated and discussed.



Autor: Masao Iwamatsu

Fuente: https://arxiv.org/







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