Quantification of Cavitation Activity by Sonoluminescence To Study the Sonocrystallization Process under Different Ultrasound Parameters
Judy Lee, Kyuichi Yasui, Muthupandian Ashokkumar, Sandra E Kentish
CRYSTAL GROWTH & DESIGN | AMER CHEMICAL SOC | Published : 2018
In this study, both the antisolvent sonocrystallization process of sodium chloride and cavitation activity were investigated as a function of frequency (22-1080 kHz) and acoustic calorimetric power (0-30 W). For frequencies between 20 and 139 kHz, the size of the sodium chloride crystals decreased sharply with increasing power. For frequencies 647 and 1080 kHz, a certain power threshold needs to be exceeded before a decrease in the crystal size was observed. This power threshold coincided with the power threshold for sonoluminescence emission from cavitation bubbles. It was found that the onset of cavitation bubble activity, irrespective of the magnitude (measured in terms of sonoluminescenc..View full abstract
Awarded by Australian Research Council for the DECRA (Discovery Early Career Research Award)
The authors would like to acknowledge the financial support through the Australian Research Council for the DECRA (Discovery Early Career Research Award, DE120101567), Mr. James Dyck for repeating some of the crystallization experiments, and Mr. Junjie Jiao for the imaging.