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Preparation of a highly dispersed powder of tin monoxide by the evaporation/condensation method under heating with focused radiation of a subterahertz gyrotron
A. I. Tsvetkovab, A. V. Vodopyanovac, D. A. Mansfelda, A. A. Orlovskiya, S. A. Bulanovaac, N. V. Alekseevad, M. A. Sinayskiyad, A. V. Samokhinad a The Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod
b Volga State University of Water Transport, Nizhnii Novgorod
c National Research Lobachevsky State University of Nizhny Novgorod
d Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences
Abstract:
A method for the preparation of a highly dispersed powder of tin monoxide (SnO) by the evaporation/condensation method under heating the initial material with focused radiation of a subterahertz gyrotron with a frequency of 0.26 THz and a power of 1 kW is investigated. The process is carried out with a purge with nitrogen that is inert with respect to SnO. A powder with a SnO content of 92 wt% is obtained. The specific surface area of the powder is 7.20 m$^2$/g, which corresponds to an average particle size of 130 nm. The characteristics of the obtained powder are analyzed. The applicability of the experimental setup for the production of highly dispersed powders from compounds that require special gas conditions in the evaporation/condensation process is demonstrated.
Keywords:
gyrotron, tin (II) oxide, fine powder, evaporation/condensation.
Received: 10.09.2020 Revised: 30.11.2020 Accepted: 30.11.2020
Citation:
A. I. Tsvetkov, A. V. Vodopyanov, D. A. Mansfeld, A. A. Orlovskiy, S. A. Bulanova, N. V. Alekseev, M. A. Sinayskiy, A. V. Samokhin, “Preparation of a highly dispersed powder of tin monoxide by the evaporation/condensation method under heating with focused radiation of a subterahertz gyrotron”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 47:5 (2021), 51–54; Tech. Phys. Lett., 47:3 (2021), 255–258
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https://www.mathnet.ru/eng/pjtf4848 https://www.mathnet.ru/eng/pjtf/v47/i5/p51
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