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A Method of Depositing Copper Nanoparticles on Microparticles of Dielectrics as a Result of a Plasma-Chemical Reaction Initiated by the Radiation of a Powerful Gyrotron

N. N. Skvortsova, E. V. Voronova, I. Yu. Vafin, N. S. Akhmadullina, T. E. Gayanova, A. A. Letunov, V. P. Logvinenko, A. Yu. Kolchanova, V. D. Borzosekov, A. S. Sokolov, V. D. Stepakhin, E. A. Obraztsova, O. N. Shishilov

Fusion Science and Technology / Volume 81 / Number 8 / November 2025 / Pages 833-847

Research Article / dx.doi.org/10.1080/15361055.2025.2478656

Received:December 30, 2024
Accepted:March 4, 2025
Published:October 22, 2025

This paper presents a description of the creation of heterogeneous catalysts by plasma-chemical methods using a powerful pulsed fusion gyrotron. The microdisperse particles for catalysts are created by irradiating a mixture of copper (Cu) and dielectric (aluminum oxide, silicon oxide, titanium oxide, silicon–aluminum oxynitride) powders by the microwave radiation of a gyrotron, which initiates plasma-chemical reactions inside the mixture and in the air above it. These are complex chain reactions of self-propagating high-temperature synthesis. As a result of these reactions, microparticles of dielectrics into whose surface Cu nanoparticles are imbedded are created.