Plasma-Electrolyte Treatment of a Metal Plate with a HF Jet Discharge

The characteristics of a high-frequency discharge during plasma-liquid treatment of the surface of a metal plate made of copper grade M1 under atmospheric illumination were studied. The high-frequency (HF) discharge is ignited by supplying an electrolyte to the surface of a metal electrode. The surface temperatures of the electrodes during the burning of an HF discharge were studied using infrared thermography. The types and shapes of plasma structures generated in the interelectrode gap are described. The crystal composition, electron concentration, variable and rotational temperatures were determined using optical emission spectroscopy (OES). The morphology and surface of the plates were studied before and after processing.