Engineering Physics Annotation << Back CHANGES OF QUANTITY AND DYNAMICS OF PARTICLE SCATTERING IN EXPERIMENTS ON THE SYNTHESIS OF OXYNITRIDE CERAMICS IN MIXTURES OF METAL AND DIELECTRICS POWDERS WITH A DOPING ADDITIVE OF CERIUM OXIDE A.K. KOZAK, A.E. PETROV, D.O. POZDNYAKOV, A.S. SOKOLOV Obtaining cerium-doped ceramic microparticles is an important task for the production of solar panels, both for civilian applications and for spacecraft. Such microparticles of doped ceramics can be obtained by various methods, including plasma chemical synthesis. When the powerful microwave radiation of the gyrotron interacts with mixtures of metal powders and dielectrics, ceramic materials of micro- and nanoscale sizes are synthesized. This plasma-chemical synthesis reaction is accompanied by the scattering of particles (which are the centers of crystallization) into the space (volume) of the reactor. The amount of synthesized substance depends on the number of crystallization centers and the duration of the exothermic process. Therefore, the analysis of changes in the number and dynamics of particle spread are important parameters that allow influencing self-sustaining exothermic reactions and the efficiency of the synthesis process. In this article, thanks to the analysis of video recordings, the trajectories of particle motion were identified, the velocities of their movement were determined, and the change in the number of particles in the reactor volume depending on the content of cerium oxide in mixtures of metal powders and dielectrics was considered. Keywords: gyrotron, plasma chemistry, microwave discharge, synthesis of substances, microparticles, oxynitrides, cerium, trajectories, Image J. DOI: 10.25791/infizik.6.2023.1333 Pp. 03-13.