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The Temperature Dependence of the Atoms Co Diffusion Coefficient in Pt80Co20(111) Alloy

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Abstract:

The method of Ionization Spectroscopy is used to study the thermo-induced kinetics of surface segregation of the Pt80Co20(111) alloy components. The temperature dependence of the Co diffusion coefficient in this alloy is determined. It is found that the value of the activation energy for the segregation of Co atoms in the near-surface region is close to the heat of sublimation of pure Co.

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Defects and Diffusion in Metals IX View Preview

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Periodical:

Defect and Diffusion Forum (Volume 265)

Pages:

19-23

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.265.19

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Online since:

May 2007

Authors:

Mykhaylo Vasylyev, Vitaliy A. Tinkov, Sergey I. Sidorenko, S.M. Voloshko

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

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