International Conference ''Mechanisms and Nonlinear Problems of Nucleation, Growth of Crystals and Thin Films'' dedicated to the memory of the outstanding theoretical physicist Professor V.V. Slezov (Proceedings) St. Petersburg, July 1-5, 2019
Phase transitions

Modeling of nucleation in binary alloys on the basis of the free-energy density functional

P. E. L'vov^ab, V. V. Svetukhin^c, S. V. Bulyarskii<sup>b

a</sup> Ulyanovsk State University
^b Institute of Nanotechnologies of Microelectronics, Russian Academy of Sciences, Moscow, Russia
^c SPC "Technological Center", Moscow, Zelenograd, Russia

Abstract: An approach based on the method of the free-energy density functional for calculating the nucleation rate of the second-phase precipitates has been developed. The nucleation rate, as well as the characteristics of the critical nucleate, are calculated directly from the modeling results of evolution of the concentration field obtained by solving the deterministic or stochastic Kahn–Hilliard equation.

Keywords: nucleation rate, free energy density functional method, Cahn–Hilliard equation, binary alloys.

Received: 16.07.2019
Revised: 16.07.2019
Accepted: 25.07.2019

DOI: 10.21883/FTT.2019.12.48597.05ks

 English version: Physics of the Solid State, 2019, 61:12, 2425–2430

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