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Magnetic Resonance Imaging of Water Absorption by Highly Porous Ceramic Materials

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Abstract

A nontrivial character of water absorption in highly porous ceramic materials has been demonstrated for the first time by magnetic resonance imaging: a phenomenon of hygroscopic memory has been detected consisting in the concentration of adsorbed water in certain areas inside the sample, repeated during subsequent wetting with water. It has been shown that hydrophobization of the material by applying fluoro paraffin coatings to oxide fibers using the method of dissolution of fluoropolymers in supercritical CO2 has a significant impact on the transport of water into products and can be considered an efficient means of protecting porous materials from moisture. The results demonstrate the capabilities of the MRI method in studying the water absorption and identifying water migration pathways in highly porous materials.

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ACKNOWLEDGMENTS

The studies were performed using equipment of KRTsKP FITs “KNTs SO RAN” in the framework of the program of basic research of the Russian Academy of Sciences (project no. V.44.1.7.) regarding the development of the MRI methodology for studying composite and porous materials, and also supported by the Russian Foundation for Basic Research (project no. 16–29–05334ofi_m “Scientific foundations for creating thin-film coatings with controlled wettability”) regarding the development of water-repellent porous materials.

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Authors and Affiliations

  1. Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia

    E. V. Morozov

  2. Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia

    E. V. Morozov

  3. All-Russian Research Institute of Aviation Materials, 105005, Moscow, Russia

    V. M. Buznik, A. S. Bespalov & D. V. Grashchenkov

  4. Gubkin State University of Oil and Gas, 119991, Moscow, Russia

    V. M. Buznik

Authors
  1. E. V. Morozov
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  2. V. M. Buznik
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  3. A. S. Bespalov
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  4. D. V. Grashchenkov
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Correspondence to E. V. Morozov.

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Translated by G. Kirakosyan

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Morozov, E.V., Buznik, V.M., Bespalov, A.S. et al. Magnetic Resonance Imaging of Water Absorption by Highly Porous Ceramic Materials. Dokl Chem 484, 44–47 (2019). https://doi.org/10.1134/S0012500819020058

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  • DOI: https://doi.org/10.1134/S0012500819020058

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