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Journal of Applied Mechanics and Technical Physics

2021 year, number 3

Control of Gas-Phase High-Temperature Synthesis of Titanium Dioxide Nanoparticles in a Plasma-Chemical Reactor with the use of a Quenching Jet

S. M. Aulchenko, E. V. Kartaev
Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
Keywords: titanium dioxide, silicon dioxide, composite particle, plasma-chemical reactor, one-velocity multicomponent medium, homogeneous and heterogeneous reactions, coagulation


The influence of a quenching air jet on physical and chemical properties and morphology of titanium dioxide, silicon dioxide, and TiO2-SiO2 composite particles synthesized by the single-stage chloride method in a flow-type plasma-chemical reactor is studied. The results of the simulations and analysis of the specimens show that the physical and chemical properties of the powder and the morphology of its particles can be controlled. It is demonstrated that the results of mathematical simulations of the synthesis of TiO2 and SiO2 particles agree well with the experimental data obtained in the study.