Researh of Influence of Technological Factors of Formation of Plasma Coatings on their Thermal Technical Properties

Abstract:

The article considers issues related to the choice of abrasive material and technology of its use for the formation of necessary roughness on the base material and necessary heat resistance of the heat-protective coating during plasma spraying. The influence of the shape and size of the abrasive on final roughness of the treated surface was studied at various angles of contact between the sprayed abrasive and the surface (angle of attack). From the condition of maximum heat resistance, the composition of the heat-resistant composite coating of the spinel type was determined, which consists of 3 layers: the 1st layer (sublayer) material is a chromium-aluminum composite and the 2nd layer of a transitional spinel-based aluminum and chromium oxide + chromium-aluminum composite and the 3rd a layer of spinel based on aluminum and chromium oxides.

• Periodical: Key Engineering Materials (Volume 844)
• Pages: 188-193
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.844.188
• Online since: May 2020
• Authors: Fedor Vashkevich, Dmytro Laukhin*, Mykhailo Spilnyk, Vladimir Zhuravel, Alexey Zagorodni
• Keywords: Abrasive Material, Ceramic Matrix Composite, Plasma Coating, Plasma Spraying, Roughness, Thermotechnical Properties

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