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Updated: May 23, 2026

Studying Cavitation Enhanced Therapy
Published on: April 9, 2021
How acoustic cavitation can improve adhesion
J Holtmannspötter1, M Wetzel, J V Czarnecki
1Bundeswehr Research Institute for Materials, Fuels and Lubricants (WIWeB), Institutsweg 1, 85435 Erding, Germany. JensHoltmannspoetter@BWB.Org
Abstract:
In general, ultrasound is commonly used at low power level for non-destructive testing (NDT) and detection of delaminations in adhesive bonded structures. The present paper instead presents an approach where power ultrasound is used to improve interface formation prior to the bonding process and to ensure the quality of adhesive bonds by using acoustic cavitation in the liquid adhesive. Results from high-speed videos, rheological and thermal measurements and destructive testing of adhesive bonds with contaminated surfaces are presented and discussed. Power ultrasound can be used in general to improve adhesion and significantly to improve contamination tolerance and robustness of adhesive bonding processes.
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