Abstract
Continuous nanocrystalline coatings of hexagonal boron nitride (h-BN) with a thickness of ~1000‒350 nm are prepared from highly concentrated aqueous solutions of lithium and sodium borates, which display good film-forming properties. The borate solutions were applied on silicon substrates by spin coating followed by drying in air and treatment in ammonia at a temperature of 1300°C. This method is deemed promising for creating protective coatings (e.g., for protecting carbon products from oxidation at elevated temperatures).
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Funding
I.N. Volkov is grateful to the Ministry of Education and Science of Russian Federation for support of the structural investigation part of this work (program K2A-2018-039 for increasing the competitiveness of National University of Science and Technology “MISiS”).
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Translated by A. Kukharuk
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Volkov, I.N., Koval’skii, A.M., Ermekova, Z.S. et al. Synthesis of Hexagonal Boron Nitride Coatings Using Concentrated Solutions of Alkali Metal Borates. Tech. Phys. Lett. 47, 122–125 (2021). https://doi.org/10.1134/S1063785021020152
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DOI: https://doi.org/10.1134/S1063785021020152