Search academic texts

Information × Registration Number 0224U031752, 0122U001695 , R & D reports Title Physical bases of technological applications of low-temperature plasma popup.stage_title Head Anisimov Ihor О., Доктор фізико-математичних наук Registration Date 11-06-2024 Organization Taras Shevchenko National University of Kyiv popup.description2 It is shown that the decrease in the concentration of ions in the jet when moving away from its source is more intense in the case of smaller dust particles, which is related to the influence of the size of the dust particles on the shape of the plasma torch. It is shown that the temperature of dust particles on the axis of the jet increases with an increase in the proportion of large dust particles in the mixture. The temperature of the plasma, its speed, and the speed of the dust particles increases with the increase in the mass of the smaller dust particles. It was established that the use of composite Cu-W electrodes sintered at 1050°С indicates their highest resistance to erosion and the most effective dissipation of energy in the discharge. The results emphasize the importance of the sintering temperature as a technological parameter in the production process of composite Cu-W materials to meet the needs of the electric power industry in electro-erosion resistant materials. It is shown that the formation of the conical part of the channel when a powerful beam of electromagnetic waves falls on the plasma barrier is related to the focusing of the reflected wave by an indentation on the surface of the barrier, the effect of which is similar to that of a concave mirror. The appearance of this indentation is caused by the high-frequency pressure of the incident wave beam. It is shown that high-pressure plasma systems with a secondary discharge, which is supported by a rotating gliding discharge, can generate a non-equilibrium plasma of a much larger volume with a change in its parameters in a wider range of parameters than in systems with an independent discharge with the possibility of scaling the plasma chemical process. As a result of plasma chemical synthesis in the nitrogen, water and ammonium molybdate system, the formation of molybdenum blue was recorded. Product Description popup.authors Kostiukevych Oleksandr M. Levada Halyna І. Marushchak Ivan S. Tsymbaliuk Oleksandr M. Yukhymenko Vitalii V. popup.nrat_date 2024-06-11 Close