Abstract
A layer of aluminum oxide on the surface of a highly filled polymer composite based on polyimide and tungsten oxide was obtained by the method of detonation spraying. The thickness of the resulting coating is from 80 to 120 μm. The X-ray diffraction pattern of the coating showed the presence of only one modification of aluminum oxide—α-Al2O3. The erosion resistance of coated and uncoated polymer composite specimens at 25 °C was studied in accordance with ASTM G76-02. The test time for all samples was 1 h, the abrasive material consumption was 2.2 g/min, and corundum powder (Al2O3) with an average fraction of 50 μm was used as the abrasive material. The air pressure was 0.35 bar. The impact of the abrasive material jet was carried out at angles of 30, 60, and 90°. It has been established that the erosion wear of specimens with a ceramic coating of α-Al2O3 is almost an order of magnitude lower than that of specimens without a coating.
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Acknowledgements
This work was supported by the Russian Science Foundation (grant no. 19-19-00316). The work is realized using the equipment of the High Technology Center at BSTU named after V.G. Shukhov.
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Bedina, V.I., Skiba, A.A., Limarenko, M.V. (2023). Erosive Wear of Alumina Coated Polyimide Composite. In: Klyuev, S.V., Klyuev, A.V., Vatin, N.I., Sabitov, L.S. (eds) Innovations and Technologies in Construction. BUILDINTECH BIT 2022. Lecture Notes in Civil Engineering, vol 307. Springer, Cham. https://doi.org/10.1007/978-3-031-20459-3_21
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