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Paper Titles
Electrocatalytic Studies of Oxygen Reduction by Lanthanum Barium Manganate
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Integrated, Effective and Average Interdiffusion Coefficients and their Applications in Multicomponent Alloys for Energy Production Technologies
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Ad- and Desorption of Oxygen at Metal-Oxide Interfaces: Numerical Approach for Concentration-Dependent Diffusion Coefficient
p.360
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Effect of Perovskite Coating on Oxide Scale Growth on Fe-22Cr
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Simulation of Nitrogen Concentration Depth Profiles in Low Temperature Nitrided Stainless Steel
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Evaluation of Diffusion Coefficients from Composition Profiles - The Influence of Trapping
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Ad- and Desorption of Oxygen at Metal-Oxide Interfaces: Numerical Approach for Concentration-Dependent Diffusion Coefficient

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Abstract:

A numerical approach for the segregation of atomic oxygen at Ag/MgO interfaces is presented. A general segregation kinetics is considered and the coupled system of differ- ential equations is solved due to a one-dimensional finite difference scheme which accounts for concentration-dependent diffusion coefficients. Based on a model oxide distribution, the influence of the concentration-dependency is numerically investigated and compared with the solution for constant coefficients. In addition, the numerical approach allows for the consider- ation of general boundary conditions, specimen sizes and time-dependent material and process parameters.

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Diffusion in Solids and Liquids, DSL-2006 I View Preview

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Periodical:

Defect and Diffusion Forum (Volumes 258-260)

Pages:

360-365

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.258-260.360

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Cite this paper

Online since:

October 2006

Authors:

M. Stasiek, Andreas Öchsner

Keywords:

Fick's Law, Finite Difference Method (FDM), Mathematical Modeling, Nonlinearity, Numerical Modeling, Segregation

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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