Abstract
The study of the water-repellent properties of the surface of a metal-ceramic coating for protective purposes based on dioxide titanium is carried out. It is shown that the water-repellent properties of the coating surface can be effectively changed by varying the technological parameters of spraying. During the production of coatings, such technological parameters as the distance from the substrate to the barrel of the detonation gun and the speed of its passage are changed. A pattern is identified that connects the technological parameters of detonation coating spraying and the contact angle of wetting. It is established that the dependence of the contact angle on the spraying distance obeys a parabolic law under certain conditions. The parameters of phenomenological equation that adequately describes the observed parabolic dependence are calculated. The optimal values of the technological parameters of detonation spraying necessary to achieve maximum hydrophobicity of the produced coatings have been determined.
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