Abstract: Methods and systems for electrodeposition of Indium, Gallium, or other metals within a metal acoustic resonator chamber are provided, including for electrodeposition of Indium or Gallium as a strike layer on an interior surface of a cavitation chamber. The resultant strike layer affords an accommodating wetting surface for subsequent filling with a liquid metal and performing cavitation therein. In some embodiments, this allows for the use of liquid metal in an acoustic resonator without the damping effects inherent with oxide boundaries or other defects.

Abstract: An acoustic driver assembly for use with any of a variety of cavitation chamber configurations, including spherical and cylindrical chambers as well as chambers that include at least one flat coupling surface. The acoustic driver assembly includes at least one transducer, a head mass and a tail mass. The end surface of the head mass is shaped to limit the contact area between the head mass of the driver assembly and the cavitation chamber to which the driver is attached, the contact area being limited to a centrally located contact region. The area of contact is controlled by limiting its size and/or shaping its surface.