About Fe Diffusion in Cu

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The temperature dependence of the bulk diffusion coefficient of Fe in Cu is determined by EDX in the temperature range from 923 to 1273 K, , m2/s. These results are different from that obtained earlier by radiotracer technique: activation energy is less by 30 kJ/mol and pre-exponential factor is 50 times smaller. Deviations from ideality of investigated solutions do not explain the differences; consequently, the thermodynamical factor would not responsible for such an effect. Fast grain boundary diffusion of Fe in Cu was not observed in the temperature range from 823 to 1073 K.

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Periodical:

Defect and Diffusion Forum (Volumes 323-325)

Edited by:

I. Bezverkhyy, S. Chevalier and O. Politano

Pages:

171-176

Citation:

D. Prokoshkina et al., "About Fe Diffusion in Cu", Defect and Diffusion Forum, Vols. 323-325, pp. 171-176, 2012

Online since:

April 2012

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$38.00

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