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Analysis of diffusional flows

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Abstract

The analysis is conducted within the framework of isotropic isobaric-isothermal diffusion in a two-component, single-phase diffusional region for a nonideal solution with an atomic volume depending on the composition. The analysis is devoted to: a) systematizing the determination of the diffusion coefficients and the expressions for the diffusional fluxes of material resulting from a multiplicity of means of expressing the composition of the system; b) deriving different forms of the diffusion equation form the continuity equation and determining their realms of applicability; c) generalizing the Darken equation for a system with an atomic volume that depends on the composition; d) determining the conditions of compatability of the parallel and “competing” methods of outlining the phenomenological theory of diffusion that exist in the literature.

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Authors and Affiliations

  1. V. D. Kuznetsov Siberian Physicotechnical Institute, Tomsk State University, USSR

    S. S. Borisov & Yu. I. Paskal'

Authors
  1. S. S. Borisov
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  2. Yu. I. Paskal'
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Additional information

Translated from Izvestiya Vysshikh Uchebnyk Zavedenii, Fizika, No. 6, pp. 63–68, June, 1981.

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Borisov, S.S., Paskal', Y.I. Analysis of diffusional flows. Soviet Physics Journal 24, 539–543 (1981). https://doi.org/10.1007/BF00892953

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  • DOI: https://doi.org/10.1007/BF00892953

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