Nanoparticle dispersionizer by ultrasonic cavitation and streaming

An ultrasonic dispersion method using ultrasonic cavitation and streaming effects is suggested for the effective dispersion of nanoparticle suspensions. To generate ultrasonic cavitation efficiently, a high-intensity ultrasonic field is formed with arrayed piezoelectric transducers in the inner surf...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 57; no. 7S1; pp. 7 - 9
Main Authors Kim, Moojoon, Kim, Jungsoon
Format Journal Article
LanguageEnglish
Published Tokyo The Japan Society of Applied Physics 01.07.2018
Japanese Journal of Applied Physics
Subjects
Appliance industry
Carbon nanotubes
Cavitation
Cylinders
Dispersion
Eddy currents
Nanoparticles
Piezoelectric transducers
Piezoelectricity
Titanium dioxide
Ultrasonic testing
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Summary:An ultrasonic dispersion method using ultrasonic cavitation and streaming effects is suggested for the effective dispersion of nanoparticle suspensions. To generate ultrasonic cavitation efficiently, a high-intensity ultrasonic field is formed with arrayed piezoelectric transducers in the inner surface of a cylinder. To use the eddy current effect caused by ultrasonic streaming in the suspension, the arrayed piezoelectric transducers are tilted by a regular degree from the inner surface of the cylinder. Titanium dioxide (TiO2) and carbon nanotube (CNT) suspensions that were dispersed by the suggested dispersion method showed excellent dispersion characteristics compared with those dispersed by the conventional method.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.57.07LE03