Calculation of the Equilibrium State and Thermodynamic Characteristics of Plasma-Forming Gases
and the Plasma–“Particle” System
S. A. Il’inykha, *, B. R. Gel’chinskiia, **, V. A. Krashaninina, ***, and N. I. Il’inykhb, ****
Translated by N. Korovin
aInstitute of Metallurgy, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620016 Russia
bUral Technical Institute of Communications and Information Science (Branch), Siberian State University of Telecommunications and Information Science, Yekaterinburg, 620019 Russia
Correspondence to: *e-mail: sergil1957@mail.ru
Correspondence to: **e-mail: brg47@list.ru
Correspondence to: ***e-mail: krash_55@mail.ru
Correspondence to: ****e-mail: ninail@bk.ru
Received 27 February, 2014
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.
Keywords: modeling, deposition, plasma, gas, structure, coating, gas-thermal deposition, thermodynamic properties
DOI: 10.3103/S1067821216050060