Composite materials based on polymers provide the necessary complex of physical and mechanical properties, wear resistance, as well as high repairability due to multiple renewals of component's surfaces by composites that are used as coatings. Based on the conducted trials, a model was built, and the analysis of the parameters of epoxy composite coatings with disperse fillers of different nature, oxides and carbides, based on the physical and geometrical properties of spherical external surface layers and their impact on residual stresses in epoxy composite coatings, was performed. The graphical models were built, and the residual stress dependencies from the parameters of the components of epoxy composite coatings with disperse fillers of different nature were obtained, based on the physical and geometrical properties of the external surface layers. The diagrams for the oxides and carbides fillers are obtained, using the results of samplings and calculations of the mass content of the filler and the diagrams of external surface layers mass per composite volume unit. The recommendations for the optimal coating formation are established based on the minimization of the material residual stresses. The composite parameter ranges, which are not recommended to use, are indicated.
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Translated from Problemy Prochnosti, No. 2, pp. 88 – 95, March – April, 2021.
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Dobrotvor, I.G., Stukhlyak, P.D., Mykytyshyn, A.G. et al. Influence of Thickness and Dispersed Impurities on Residual Stresses in Epoxy Composite Coatings. Strength Mater 53, 283–290 (2021). https://doi.org/10.1007/s11223-021-00287-x
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DOI: https://doi.org/10.1007/s11223-021-00287-x