Chemical interdiffusion in binary systems; interface barriers and phase competition

Marek Danielewski; Bartek Wierzba; Andriy Gusak; M. Pawełkiewicz; J. Janczak-Rusch

doi:10.1063/1.3667293

journal article Dec 15, 2011

Chemical interdiffusion in binary systems; interface barriers and phase competition

Marek Danielewski

Bartek Wierzba Andriy Gusak M. Pawełkiewicz J. Janczak-Rusch

Journal of Applied Physics Vol. 110 No. 12 · AIP Publishing

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Abstract

The problem of simultaneous growth and competition of intermediate phases during reactive diffusion is formulated and solved. In this paper, we compare existing models of steady state reaction diffusion and introduce the new one basing on the bi-velocity method. We extend old problem and propose method based on material (lattice) fixed frame of reference. It allows computing the material velocity in the reacting system in which reactions at several moving interfaces occur. All reactions lead to the lattice shift due to the difference of intrinsic diffusivities and different molar volumes. The following peculiarities are taken into account: (1) the deviation from local equilibrium at all interfaces; (2) the mobilities of the components in the bulk and interphase zone; and (3) the molar volumes of the components. We show the kinetic of the reactions, the non parabolic regime, the multiphase scale growth and present the practical application of the method.

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Citations

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Details

Published: Dec 15, 2011
Vol/Issue: 110(12)

Authors

M

Marek Danielewski

AGH University of Science and Technology 1 Interdisciplinary Centre for Materials Modeling, FMSci&C, , Al. Mickiewicza 30, 30-059 Kraków, Poland

B

Bartek Wierzba

AGH University of Science and Technology 1 Interdisciplinary Centre for Materials Modeling, FMSci&C, , Al. Mickiewicza 30, 30-059 Kraków, Poland

A

Andriy Gusak

Cherkasy National University 2 Department of Theoretical Physics, , Shevchenko Street 81, Cherkasy 18000 Ukraine

M

M. Pawełkiewicz

AGH University of Science and Technology 1 Interdisciplinary Centre for Materials Modeling, FMSci&C, , Al. Mickiewicza 30, 30-059 Kraków, Poland; Swiss Federal Laboratories for Materials Science and Technology 3 Empa, , Überlandstrasse 129, 8600 Dübendorf, Switzerland

J

J. Janczak-Rusch

Swiss Federal Laboratories for Materials Science and Technology 3 Empa, , Überlandstrasse 129, 8600 Dübendorf, Switzerland

Cite This Article

Marek Danielewski, Bartek Wierzba, Andriy Gusak, et al. (2011). Chemical interdiffusion in binary systems; interface barriers and phase competition. Journal of Applied Physics, 110(12). https://doi.org/10.1063/1.3667293

Chemical interdiffusion in binary systems; interface barriers and phase competition

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