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Effect of the dynamic redistribution of impurities on the grain-boundary friction in nanocrystalline materials

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Abstract

A relaxation process involving the redistribution of impurity atoms along the grain boundaries in a nanocrystalline material under the action of a variable external load is considered. The frequency spectrum of internal friction in this system, which is found by solving the barodiffusion equation, has a peak shape. The intensity of this spectral peak is estimated.

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Authors and Affiliations

  1. Moscow Power Engineering University (Volzhskii Branch), Volzhskii, Volgograd oblast, Russia

    V. G. Kul’kov

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  1. V. G. Kul’kov
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 31, No. 8, 2005, pp. 32–37.

Original Russian Text Copyright © 2005 by Kul’kov.

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Kul’kov, V.G. Effect of the dynamic redistribution of impurities on the grain-boundary friction in nanocrystalline materials. Tech. Phys. Lett. 31, 329–331 (2005). https://doi.org/10.1134/1.1920387

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  • DOI: https://doi.org/10.1134/1.1920387

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