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Gibbs–Thomson condition for the rapidly moving interface in a binary system

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  • Salhoumi, A.
  • Galenko, P.K.

Abstract

Using a phase-field model for fast phase transformations we derive an interface condition for the rapidly moving solid–liquid interface. The model is described by equations for the hyperbolic transport and fast interface dynamics, which are reduced to a sole equation of the phase field with the driving force given by deviations of temperature and concentration from their equilibrium values within the diffuse interface. It is shown that the obtained interface condition presents the acceleration- and velocity-dependent Gibbs–Thomson interfacial condition. This condition is identical to the advanced Born–Infeld equation for the hyperbolic motion by mean curvature with the driving force. As a limiting case, the interface condition presents “velocity-driving force” relationships found earlier as traveling wave solutions for slow and fast phase field profiles. Predictions of the analytical solutions are qualitatively compared with literature data of atomistic simulations on crystal growth kinetics.

Suggested Citation

  • Salhoumi, A. & Galenko, P.K., 2016. "Gibbs–Thomson condition for the rapidly moving interface in a binary system," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 447(C), pages 161-171.
    • Handle: RePEc:eee:phsmap:v:447:y:2016:i:c:p:161-171
    DOI: 10.1016/j.physa.2015.12.042
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    References listed on IDEAS

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    1. Galenko, Peter & Jou, David, 2009. "Kinetic contribution to the fast spinodal decomposition controlled by diffusion," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 388(15), pages 3113-3123.
    2. Herrera, Luis & Pavón, Diego, 2002. "Hyperbolic theories of dissipation: Why and when do we need them?," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 307(1), pages 121-130.
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    Cited by:

    1. Yifeng Hou & Fengyan Wang & Chichu Qin & Shining Wu & Mengyang Cao & Pengkun Yang & Lu Huang & Yingpeng Wu, 2022. "A self-healing electrocatalytic system via electrohydrodynamics induced evolution in liquid metal," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Nizovtseva, I.G. & Galenko, P.K. & Alexandrov, D.V., 2017. "Traveling wave solutions for the hyperbolic Cahn–Allen equation," Chaos, Solitons & Fractals, Elsevier, vol. 94(C), pages 75-79.

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