Evolution of Cavitation Activity During Ultrasonic Nanostructuring of Magnesium

Abstract

In this paper we focus on the investigation of the transient cavitation activity evolution during the sonochemical treatment of magnesium aqueous suspensions. We investigated the nonlinear behavior of cavitation activity that can be related with the influence of hydrogen gas released in the reaction of magnesium with water. Ultrasound causes the modification of the magnesium particles leading to the formation of the nanostructured Mg(OH)2 phase (brucite) resulting from both chemical and sonochemical impacts on the magnesium.