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Modeling shows that dielectric film occupation affects transition dynamics in gas discharges, impacting performance.
A model of the cathode layer of a glow gas discharge with a thin dielectric film on a fraction of the cathode’s working surface is formulated. It is shown that a glow discharge most rapidly transits to an arc discharge, accompanied by a significant increase in discharge current density and a decrease in cathode voltage drop, if the film occupies approximately half of the cathode surface.
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Бондаренко et al. (2026) studied this question.
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