Abstract
A mathematical model of the expansion of a discharge channel due to a growing electrothermal instability in a solid dielectric material under constant voltage is considered. The model describes temperature dynamics, electric field strength, discharge density, and melting of the dielectric. The paper reports the results of a numerical investigation of the discharge-channel expansion during the breakdown of ceramic BeO in a point-to-plane electrode configuration.
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Noskov, M.D., Lopatin, V.V., Cheglokov, A.A. et al. Investigation of Discharge Channel Elongation under Thermal Dielectric Breakdown. Russian Physics Journal 46, 91–95 (2003). https://doi.org/10.1023/A:1024013022099
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DOI: https://doi.org/10.1023/A:1024013022099