Факультет робототехніки та штучного інтелекту
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Item type:Наукова стаття, Theoretical and Experimental Studies of the Properties of Porous Permeable Materials Obtained from Industrial Waste(2022-05-25) Povstyanoy, Oleksandr; Imbirovich, Nataliya; Tkachuk, Valentyna; Redko, RostyslavThis article theoretically and experimentally investigates the scientific and technical problem of using multilayer porous permeable materials from industrial waste with controlled functional and technological characteristics by predicting the composition, structure, properties using computer information technology. These porous permeable materials (PPM) from industrial waste are suitable for the purification of technical liquids and gases, which has increased the efficiency of using products in various fields of mechanical engineering. The method of computer modeling proposed by the authors will allow not only to determine the porosity distribution of the filter material but also to determine the relationship between technological and structural parameters. The results of this scientific work are used to develop porous permeable products - filters - for the purification of technical, industrial water, lubricants, and fuels from mechanical impurities contaminants. Developed multilayer porous permeable materials have a higher coefficient of permeability, resource, and dirt capacity with similar single-layer.Item type:Наукова стаття, The State of Electrolytic Plasma in Synthesis of Oxide Ceramic Coatings on the Magnesium Basis(Cham: Springer, 2023-05-23) Povstyanoy, Oleksandr; Posuvailo, Volodymyr; Imbirovych, Nataliya; Tkachuk, ValentynaThe basis for determining the density of electrons in plasma is the study of the broadening of spectral lines, which is caused by the linear Shtarkeffect. AQ1 This article demonstrates the applicability of the classical theory of scattering, with the help of which, analyzing the spectral characteristics of spark plasma discharges in the electrochemical system of magnesium-electrolyte, determined that during the synthesis of oxide-ceramic coatings on a magnesium basis in discharge channels for electron density (3.2…3.4)·1022 m−3 and their temperatures (1…1.1)·104 K equilibrium, not degenerate, quasi-ideal plasma is formed with an ionicity (0.02…0.10). This temperature makes conditions for dissociation and ionization of electrolyte components and also ensures high chemical reactivity. At the same time, the speed of the reaction is much higher compared to classical electrochemical methods. The performed calculations provide the possibility of further correct thermodynamic calculation of the concentrations of the reaction products of the synthesis of oxide ceramic coatings in the electrolytic plasma of the magnesium alloy–electrolyte system.