High Voltage Degradation of Electrodes Caused by Electrochemical Injection in Liquid Dielectrics

— The results of experimental studies on the electrode degradation caused by the electrochemical reactions under high voltage fields are presented. Technical hydrocarbon and polymethylsiloxane (PMS) liquids and their solutions with iodine (I 2 ) at chemically active (Cu) and indifferent (Ti) electrodes were examined. It was shown that, in hydrocarbon Cu, electrodes interact intensively with I 2 and, moreover, the cathodic degradation is more intense than that of anodic. Titanium electrodes do not degrade; however, the I 2 physical adsorption occurs in hydrocarbons on them and the polymer film forms on them in the PMS. The degradation kinetics in time was studied.