Phase-field approach to heterogeneous nucleation

Details Phase-field approach to heterogeneous nucleation Phase-field approach to heterogeneous nucleation

2002-12-20

arxiv.org/abs/cond-mat/0212524v1

Physics

Condensed Matter

Statistical Mechanics

8 pages including 7 figures. Accepted for publication in Physical Review B

Scientific paper

10.1103/PhysRevB.67.035412

We consider the problem of heterogeneous nucleation and growth. The system is described by a phase field model in which the temperature is included through thermal noise. We show that this phase field approach is suitable to describe homogeneous as well as heterogeneous nucleation starting from several general hypotheses. Thus we can investigate the influence of grain boundaries, localized impurities, or any general kind of imperfections in a systematic way. We also put forward the applicability of our model to study other physical situations such as island formation, amorphous crystallization, or recrystallization.

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