Abstract
The composition and thermodynamic characteristics of plasma-forming gases (Ar, N2, H2, and mixtures Ar + N2 and Ar + H2) depending on temperature are investigated using thermodynamic modeling. The equilibrium composition and thermodynamic properties of the plasma–“particle” system are modeled. Pure metals, oxides, technical powders, and powder mixtures were considered as the particle. The influence of power materials TiO2, Al2O3, and Fe3O4 on the variation in the plasma enthalpy is investigated. It is shown that computer modeling of the influence of thermodynamic parameters of the heterogeneous plasma jet makes it possible to optimize the modes of the plasma deposition and formation of plasma coatings. The proposed approach substantially shortens the time necessary to develop the formation technologies of coatings with the specified functional properties such as protective, antiwear, etc.
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Original Russian Text © S.A. Il’inykh, B.R. Gel’chinskii, V.A. Krashaninin, N.I. Il’inykh, 2015, published in Izvestiya Vysshikh Uchebnykh Zavedenii, Poroshkovaya Metallurgiya i Funktsional’nye Pokrytiya, 2015, No. 2, pp. 49–55.
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Il’inykh, S.A., Gel’chinskii, B.R., Krashaninin, V.A. et al. Calculation of the equilibrium state and thermodynamic characteristics of plasma-forming gases and the plasma–“particle” system. Russ. J. Non-ferrous Metals 57, 509–514 (2016). https://doi.org/10.3103/S1067821216050060
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DOI: https://doi.org/10.3103/S1067821216050060