ultraäänimekaaniseksi
Ultraäänimekaaniseksi refers to the mechanical effects that occur when materials are exposed to high-intensity ultrasound. This phenomenon is distinct from the thermal effects of ultrasound and focuses on the physical forces generated by sound waves. When ultrasonic waves propagate through a medium, they create alternating regions of compression and rarefaction. In liquids, this can lead to cavitation, the formation and collapse of bubbles. The implosion of these bubbles generates localized high pressures and temperatures, as well as microjets and shock waves. These mechanical forces can induce a variety of effects, such as sonochemical reactions, cell disruption, and the enhancement of mass transfer.
In solid materials, ultrasonic vibrations can induce mechanical stress, leading to fatigue, fracture, or plastic deformation,