Preparation of coatings with high infrared emissivity

OBRABOTKAMETALLOV Vol. 26 No. 2 2024 35 TECHNOLOGY Preparation of coatings with high infrared emissivity Vyacheslav Sirota 1, a, Sergey Zaitsev 1, b, Mikhail Limarenko 1, c, Dmitry Prokhorenkov 1, d, Mikhail Lebedev 1, e, Anton Churikov 1, f, Alexey Dan’shin 2, g 1 Belgorod State Technological University named after V.G. Shukhov, 46 Kostyukova st., Belgorod, 308012, Russian Federation 2 JSC “Shebekinsky Machine-Building Plant”, 11 Oktyabrskaya st., Shebekino, 309290, Russian Federation a https://orcid.org/0000-0003-4634-7109, zmas36@mail.ru; b https://orcid.org/0000-0003-0122-1908, sergey-za@mail.ru; c https://orcid.org/0000-0001-6699-6910, mclam@mail.ru; d https://orcid.org/0000-0002-6455-8172, bstu-cvt-sem@yandex.ru; e https://orcid.org/0000-0003-3194-9238, michaell1987@yandex.ru; f https://orcid.org/0000-0002-1829-2676, churikov.toni@mail.ru; g https://orcid.org/0009-0009-6998-8241, aldans@mail.ru Obrabotka metallov - Metal Working and Material Science Journal homepage: http://journals.nstu.ru/obrabotka_metallov Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science. 2024 vol. 26 no. 2 pp. 23–37 ISSN: 1994-6309 (print) / 2541-819X (online) DOI: 10.17212/1994-6309-2024-26.2-23-37 ART I CLE I NFO Article history: Received: 13 December 2023 Revised: 26 February 2024 Accepted: 20 March 2024 Available online: 15 June 2024 Keywords: Detonation spraying High emissivity coating Funding The research was carried out within the framework of the Complex Project No. 30/22 dated 10/12/22 within the framework of Agreement No. 075–112023-017 dated 02/13/2023 “Creation of high-tech production of composite cutting elements of machines and thermal equipment for processing agricultural products”. Acknowledgements The research was carried out using the equipment of the Center for High Technologies of BSTU named after V.G. Shukhov. ABSTRACT Introduction. One of the promising modern methods of coating formation is detonation gas dynamic sputtering. Coatings obtained by this method have high adhesion to the substrate, dense structure and specifi ed functional properties. Development of technology for obtaining functional coatings with high emission coeffi cient in the infrared range is an urgent need for the development of high-temperature industrial processes and technologies. High-temperature industrial processes consume a large amount of energy, so improving the energy effi ciency of industrial equipment is considered as one of the ways to overcome the ever-growing energy crisis. To this end, coatings with high infrared emissivity have been developed for industrial furnaces. These coatings are usually applied to the furnace walls, which signifi cantly improves energy effi ciency by increasing heat transfer from the heat-emitting surfaces of the furnace. The purpose of the work is to obtain coatings with high emission indices in the infrared range for further recommendation of its use in baking ovens of Shebekinsky machine-building plant. Methods for studying coating specimens obtained by detonation gas-thermal method: scanning electron microscopy, X-ray phase analysis, energy dispersive analysis, infrared spectroscopy. Results and discussion. The microstructure, phase composition, emissivity and thermal cycling resistance of Fe2O3; Al2O3 + 10 % Fe2O3; Ti + 10% Fe2O3 coatings obtained by detonation gas-dynamic powder spraying are investigated in this work. The results of the study showed that the obtained coatings have a dense structure, increased emissivity and resistance to thermal treatment cycles, as a result of which the structure of the crystal lattice of the coatings does not change. For citation: Sirota V.V., Zaitsev S.V., Limarenko M.V., Prokhorenkov D.S., Lebedev M.S., Churikov A.S., Dan’shin A.L. Preparation of coatings with high infrared emissivity. Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science, 2024, vol. 26, no. 2, pp. 23–37. DOI: 10.17212/1994-6309-2024-26.2-23-37. (In Russian). ______ * Corresponding author Sirota Vyacheslav V., Ph.D. (Physics and Mathematics), Director Belgorod State Technological University named after V.G. Shukhov, 46 Kostyukova st., 308012, Belgorod, Russian Federation Tel.: +7 904 539-14-08, e-mail: zmas36@mail.ru References 1. Tan W., Petorak C.A., Trice R.W. Rare-earth modifi ed zirconium diboride high emissivity coatings for hypersonic applications. Journal of the European Ceramic Society, 2014, vol. 34 (1), pp. 1–11. DOI: 10.1016/j. jeurceramsoc.2013.07.016.

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