Title: Phase-field analysis of a ternary two-phase diffusion couple with multiple analytical solutions
Authors: Heulens, Jeroen ×
Blanpain, Bart
Moelans, Nele #
Issue Date: Jun-2011
Publisher: Elsevier Science
Series Title: Acta Materialia vol:59 issue:10 pages:3946-3954
Abstract: Under certain conditions, there are multiple analytical solutions for the interface velocity in ternary two-phase diffusion couples. We have tackled this degeneracy problem by employing an isothermal phase-field model for diffusion couples that allows comparison with the analytical solutions. We find that, besides the three analytically predicted single-interface diffusion paths, a triple-interface diffusion path can also form. Furthermore, analysis of the phase-field simulation results shows that the Gibbs energies of both the bulk phases and the interfaces must be considered to determine uniquely the evolution of a diffusion couple, in case whether a single or multiple interfaces form.
ISSN: 1359-6454
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Department of Materials Engineering - miscellaneous
Chemical and Extractive Metallurgy Section (-)
× corresponding author
# (joint) last author

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