Abstract
The regularities of cathode processes for activated thermionic cathodes, operating in three typical modes found experimentally, are theoretically studied. An evolutionary physical-mathematical model is used considering the processes occurring in the bulk and on the surface of a solid body and in the cathode plasma with reference to each other. The agreement between the theoretical results and the experimental data confirms the accuracy of the developed model. It is shown that the unsteadiness of the cathode and near-cathode processes is caused by the change of the emission characteristics of the cathode material during its operation.
Similar content being viewed by others
References
Gordeev, V.F. and Pustogarov, A.V., Termoemissionnye dugovye katody (Thermionic Arc Cathodes), Moscow: Energoizdat, 1988.
Fauchais, P. and Vardelle, A., IEEE Trans. Plasma Sci., 1997, vol. 25, no. 6, p. 1258.
Zhukov, M.F., Zasypkin, I.M., Timoshevskii, A.N., Mikhailov, B.G., and Desyatkov, G.A., Elektrodugovye generatory termicheskoi plazmy (Electroarc Thermal Plasma Generators), Novosibirsk: Nauka, 1999.
Zimin, A.M., Khvesyuk, V.I., and Tsydypov, B.D., Teplofiz. Vys. Temp., 1986, vol. 24, no. 1, p. 30.
Zimin, A.M., Nazarenko, I.P., Panevin, I.P., and Khvesyuk, V.I., Matematicheskoe modelirovanie katodnykh protsessov (Mathematical Simulation of Cathode Processes), Novosibirsk: Nauka, 1993.
Tsydypov, B.D., in Materialy Vserossiiskoi konferentsii po fizike nizkotemperaturnoi plazmy, Petrozavodsk, 24–28 iyunya, 2007 (Proceedings of the All-Russian Conference on the Physics of Low-Temperature Plasma, Petrozavodsk, Russia, June 24–28, 2007), Petrozavodsk, 2007, vol. 2, p. 58.
Tsydypov, B.D., Katodnye i prikatodnye protsessy sil’notochnykh plazmennykh sistem. Teoriya i eksperiment (Cathode and Near-Cathode Processes of High-Current Plasma Systems: Theory and Experiment), Saarbrucken: Lambert, 2012.
Tsydypov, B.D. and Simakov, I.G., High Temp., 2011, vol. 49, no. 5, p. 642.
Tsydypov, B.D. and Simakov, I.G., Zh. Tekh. Fiz., 2010, vol. 55, no. 11, p. 1661.
An’shakov, A.S., Urbakh, E.K., and Tsydypov, B.D., Teplofiz. Aeromekh., 1995, vol. 2, no. 2, p. 167.
Panevin, I.G., Khvesyuk, V.I., Nazarenko, I.P., et al., Teoriya i raschet prielektrodnykh protsessov (Theory and Calculation of the Near-Electrode Processes), Novosibirsk: Nauka, 1992.
Bakhmet’ev, K.A., Konovalov, A.V., Sinkevich, O.A., and Samoilov, I.S., High Temp., 2011, vol. 49, no. 2, p. 168.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © B.D. Tsydypov, 2014, published in Teplofizika Vysokikh Temperatur, 2014, Vol. 52, No. 4, pp. 609–612.
Rights and permissions
About this article
Cite this article
Tsydypov, B.D. Effect of heat and mass transfer of alloying elements on the parameters of thermoemission cathodes. High Temp 52, 580–583 (2014). https://doi.org/10.1134/S0018151X14040245
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0018151X14040245