Microscopic Treatment of Solute Trapping and Drag

التفاصيل البيبلوغرافية
العنوان: Microscopic Treatment of Solute Trapping and Drag
المؤلفون: Humadi, Harith, Hoyt, J. J., Provatas, Nikolas
المصدر: Phys. Rev. E 93, 010801 (2016)
سنة النشر: 2014
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Materials Science
الوصف: The long wavelength limit of a recent microscopic phase field crystal (PFC) theory of a binary alloy mix- ture is used to derive an analytical approximation for the segregation coefficient as a function of the interface velocity, and relate it to the two-point correlation function of the liquid and the thermodynamic properties of solid and liquid phases. Our results offer the first analytic derivation of solute segregation and solute drag de- rived from a microscopic model, and analytically support recent molecular dynamics and fully numerical PFC simulations. Our analytical result also provides an independent framework, motivated from classical density functional theory, from which to elucidate the fundamental nature of solute drag, which is still highly contested in the literature.
نوع الوثيقة: Working Paper
DOI: 10.1103/PhysRevE.93.010801
URL الوصول: http://arxiv.org/abs/1412.0297
رقم الانضمام: edsarx.1412.0297
قاعدة البيانات: arXiv
الوصف
DOI:10.1103/PhysRevE.93.010801