Evaluation of Diffusion Coefficients from Composition Profiles - The Influence of Trapping

Thomas L. Christiansen; Marcel A.J. Somers

doi:10.4028/www.scientific.net/DDF.258-260.384

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Evaluation of Diffusion Coefficients from Composition Profiles - The Influence of Trapping

Abstract:

The applicability of the Boltzmann-Matano method for evaluation of a diffusion coefficient and its concentration dependency by line profile analysis is tested on three different (model) systems. All systems involve interstitial diffusion. It is shown that the occurrence of trapping corrupts the applicability of the Boltzmann-Matano method.

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Periodical:

Defect and Diffusion Forum (Volumes 258-260)

Pages:

384-389

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.258-260.384

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Online since:

October 2006

Authors:

Thomas L. Christiansen, Marcel A.J. Somers

Keywords:

Boltzmann-Matano Method, Concentration Dependent Diffusion Coefficient, Diffusion, Expanded Austenite, Trapping

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