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Rapid determination of diffusivity in massive anisotropic porous materials

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Thermophysics and Aeromechanics Aims and scope

Abstract

A method for rapid determination of diffusion coefficients of polar solvents in anisotropic porous materials, making it possible to control the state of products prepared from such materials without destruction, is reported. For implementation of the proposed method, no preliminary calibration of the local solvent concentration in solid phase for the used converter and each new “porous material-solvent” system is required; that circumstance largely increases the research productivity of the method. The method possesses flexibility in terms of the possibility for measuring the values involved in the calculation expression on curve sections with a high sensitivity to parameter changes and in the range with a stable and noise-protected output signal of the concentration converter, which fact ensures an in-creased control accuracy.

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Authors and Affiliations

  1. Roskhimzashchita Corporation, Tambov, Russia

    V. P. Belyaev

  2. Tambov State Technical University, Tambov, Russia

    S. V. Mishchenko & P. S. Belyaev

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  1. V. P. Belyaev
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  2. S. V. Mishchenko
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  3. P. S. Belyaev
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Correspondence to P. S. Belyaev.

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Belyaev, V.P., Mishchenko, S.V. & Belyaev, P.S. Rapid determination of diffusivity in massive anisotropic porous materials. Thermophys. Aeromech. 27, 295–301 (2020). https://doi.org/10.1134/S0869864320020110

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  • DOI: https://doi.org/10.1134/S0869864320020110

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