What is Ultrasound cavitation? Ultrasound is physical energy that causes ultrasound cavitation, that is, the formation of microbubbles when pressure is relatively low. This usually occurs when a liquid undergoes rapid changes in pressure—alternating between high and low pressure. As the microbubbles increase in size and finally explode, they generate shock waves.
When microbubbles collapse in the microscopic world, they generate shock waves, high temperature of more than 5000 degrees Celsius, High pressure of more than 1000 atmospheric pressure and Strong light.
When microbubbles don’t collapse, they still generate ultrasonic microstreaming caused by vibrational size changes of microbubbles.