The cavitation noise in the ultrasonic vibration system was found to be influenced by the size of microparticles added in water. The SiO2 microparticles with the diameter smaller than 100 μm reduced the cavitation noise, and the reason was attributed to the constrained oscillation of the cavitation bubbles, which were stabilized by the microparticles.
Ge, H., Li, J., & Chen, H. S. (2015). Influence of microparticle size on cavitation noise during ultrasonic vibration. AIP Advances, 5(9). https://doi.org/10.1063/1.4931162