Fabrication of Anti-Corrosion Coatings on Metal Surfaces by Thermal Spraying of Ceramic ZnO Nanoparticles Synthesized in a Plasma Discharge under the Influence of Ultrasound

Abstract

In this article, a study was carried out on the possibility of using physical methods of influence with a high local energy concentration, namely: plasma discharge under the influence of intense ultrasound and thermal gas treatment for the synthesis of ceramic nanoparticles and the creation of coatings on material surfaces based on them. For thermal gas treatment, the gas composition (consumption of components), gas consumption, treatment distance, exposure time and temperature were varied. Using zinc oxide as an example, the possibility of creating coatings from nanoparticles on the surface of steel was shown. Zinc oxide nanoparticles synthesized in a plasma discharge under the influence of ultrasound were characterized by scanning electron microscopy. The particle size was 30--50 nm. The resulting coatings were examined using a metallographic microscope, and data on the thickness and structure of the coating were obtained. From the micrograph it is clear that a fairly uniform coating has been obtained, the structure of the coating on the substrate and the coating material after peeling off from the substrate are quite intact. The studies carried out made it possible to confirm that the application of nanoparticles of ceramic materials to the surface of steel during its gas-thermal treatment makes it possible to obtain a coating that can prevent corrosion processes for some time

The work was carried out within the framework of R&D (2022--2024): "Chemical resistance of materials, protection of metals and other materials from corrosion and oxidation" (reg. no in EGISU 122011300078-1, no. FFZS-2022-0013)

Please cite this article in English as:

Butusova O.A., Sitnikov S.A., Mikhaylov Yu.G., et al. Fabrication of anti-corrosion coatings on metal surfaces by thermal spraying of ceramic ZnO nanoparticles synthesized in a plasma discharge under the influence of ultrasound. Herald of the Bauman Moscow State Technical University, Series Natural Sciences, 2025, no. 2 (119), pp. 65--77 (in Russ.). EDN: KLXXGD

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