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Measuring the Contact Angles of Powders by the Sessile Drop Method

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Inorganic Materials: Applied Research Aims and scope

Abstract

It is found that the time of establishing a critical contact angle of wetting the surface of a pressed sample made of polycrystalline quartz powder with different liquids is determined primarily by the viscosity of the liquid. It is shown that, in order to determine the critical contact angle of powder materials, it is necessary to record the moment at which the diameter of the base of a liquid droplet on the surface of a powder sample has a maximum value.

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ACKNOWLEDGMENTS

This research was carried out using the unique scientific equipment “Physical Chemistry of the Surfaces of Nanodispersed Systems.”

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Correspondence to V. E. Danilov, E. V. Korolev or A. M. Ayzenshtadt.

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Translated by L. Mukhortova

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Danilov, V.E., Korolev, E.V. & Ayzenshtadt, A.M. Measuring the Contact Angles of Powders by the Sessile Drop Method. Inorg. Mater. Appl. Res. 12, 794–798 (2021). https://doi.org/10.1134/S2075113321030084

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  • DOI: https://doi.org/10.1134/S2075113321030084

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