Some Remarks on the Magnitude of the Chemical Diffusivities at Moving Grain Boundaries

Abstract:

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The paper provides a short state of art in the field of diffusion processes at moving grain boundaries (reaction front) at the example of discontinuous solid state reactions. Main emphasis is put on the stop- and go behaviour and its consequences, the role of local characterisation of the discontinuous reactions and the concept of dynamic segregation in the explanation of existing divergences concerning the rate of diffusion at the stationary and moving boundary. Finally, some unsolved problems and perspective for the future research are presented.

Info:

Periodical:

Edited by:

B.S. Bokstein and B.B. Straumal

Pages:

173-182

DOI:

10.4028/www.scientific.net/DDF.249.173

Citation:

P. Zięba "Some Remarks on the Magnitude of the Chemical Diffusivities at Moving Grain Boundaries", Defect and Diffusion Forum, Vol. 249, pp. 173-182, 2006

Online since:

January 2006

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$35.00

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