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Phase Field Theory of Heterogeneous Crystal Nucleation



L Granasy, T Pusztai, D M. Saylor, James A. Warren


A phase field approach is developed to model wetting and heterogeneous crystal nucleation of an undercooled pure liquid in contact with a sharp wall. We discuss various choices for the boundary condition at the wall and determine the properties of critical nuclei, including their free energy of formation and the contact angle as a function of undercooling. We find for particular choices of boundary conditions, we may realize either an analog of the classical spherical cap model or a decidedly a non-classical behavior, where the contact angle decreases from its value taken at the melting point towards complete wetting at a critical undercooling.
Physical Review Letters


heterogeneous nucleation, phase field


Granasy, L. , Pusztai, T. , Saylor, D. and Warren, J. (2007), Phase Field Theory of Heterogeneous Crystal Nucleation, Physical Review Letters (Accessed June 22, 2024)


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Created January 18, 2007, Updated October 12, 2021