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Zhurnal Tekhnicheskoi Fiziki, 2023 Volume 93, Issue 9, Pages 1279–1287 (Mi jtf7074)

Plasma

Particles combustion of interaction of a microwave pulse of a gyrotron with a mixture of metal/dielectric powders

Z. A. Zakletskii, N. G. Gusein-zade, D. V. Malakhov, L. V. Badyanova, E. V. Voronova, V. D. Stepakhin

Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia

Abstract: As a result of interaction under normal conditions in an air atmosphere of a microwave pulse of a gyrotron with a mixture of Al/Al$_2$O$_3$ powders, ceramic particles of morphology microprocesses are synthesized. A variant of a multi-stage process for the development of physical and chemical processes in a reactor, taking into account ignition. After the end of the microwave pulse, a cloud is observed consisting of hot aluminum oxide particles and burning aluminum particles. A certain influence of the combustion process of aluminum particles on the products of plasma-chemical synthesis. The paper also determines the average velocity of particles from the powder mixture, the burning time of aluminum particles, the surface temperature of the particles of the powder mixture, and the temperature of the gaseous medium in the upper part of the plasma-chemical reactor.

Keywords: plasma, combustion particles and flame, microwave, materials.

Received: 16.05.2023
Revised: 17.07.2023
Accepted: 20.07.2023

DOI: 10.21883/JTF.2023.09.56214.127-23



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