Synergy of grain boundary and interface diffusion during intermediate compound formation

Gusak, A. M. and Titova, A. (2023) Synergy of grain boundary and interface diffusion during intermediate compound formation. Philosophical Magazine. pp. 1-21.

[img] Text
gusak titova philosophical magazine 2023.pdf

Download (1MB)

Abstract

The kinetics of reactive growth of a compound with a columnar structure with frozen bulk diffusion is revisited. The finite rate of redistribution and reaction along moving interfaces between reagents and growing compound is taken into account. Cases of planar and curved inter-phase interfaces are discussed. A new kinetic equation for the phase growth with evolving grain boundaries is suggested. Three cases are considered: (1) frozen grain structure, (2) normal lateral grain growth which does not depend on phase growth and on diffusion fluxes, (3) flux-driven grain growth which is induced by grain-boundary diffusion fluxes across the growing compound layer. The latter model provides the best fit to the experimental data.

Item Type: Article
Uncontrolled Keywords: interdiffusion ; grain boundary ; intermediate ; compound ; diffusion ; interface diffusion ; grain growth ; nonequilibrium thermodynamics
Subjects: Фізико-математичні науки
Divisions: Навчально-науковий інститут інформаційних та освітніх технологій
Depositing User: Наукова Бібліотека
Date Deposited: 28 Feb 2023 14:49
Last Modified: 15 May 2023 13:04
URI: https://eprints.cdu.edu.ua/id/eprint/5227

Actions (login required)

View Item View Item