Chracteristics of Cavitation-Induced Sonoluminescence under Conditions of Cathodic Protection

Abstract

In this study, cavitation-induced sonoluminescence under conditions of cathodic protection was measured and examined in three percent sodium sulfate solution using an electrostrictive vibratory apparatus. It was found that the relative intensity of sonoluminescence increases as the cathodic current becomes larger. This because the hydrogen gas bubbles which evolve can also give off sonoluminescence in the sams way as cavitation bulbble. This fact suggests that cavitation accompanied by an electrolytic reaction can result in more intense sonoluminescence.