ArticleUltrasonics sonochemistry2022
Cavitation erosion by shockwave self-focusing of a single bubble.
Article in Ultrasonics sonochemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Predicting Impact Loads on Polymer Materials from Laser-Induced Cavitation Bubble Collapse Using Random Forest Regression.Micromachines · 2026Article
- Study of Three-Phase Flow Field Characteristics in a Multi-Stage Friction-Shear Cavitating Waterjet for Flake Graphite Liberation.Materials (Basel, Switzerland) · 2026Article
- Dynamic characteristics comparison between non-spherical hydrodynamic cavitation bubbles and spark-induced cavitation bubbles.Ultrasonics sonochemistry · 2026Article
- Sonoluminescence from single cavitation bubbles near solid surfaces.Ultrasonics sonochemistry · 2026Article
- On demand controlling of cavitation bubble collapse and jet formation through a free and rigid boundary arrangement.Ultrasonics sonochemistry · 2025Article
- Complex transition pathways in boiling and cavitation.Journal of fluid mechanics · 2025Article
- Near-wall dynamics of single cavitation bubbles imaged by total internal reflection fluorescence.Ultrasonics sonochemistry · 2025Article
- Cavitation dynamics and thermodynamic effect of R134a refrigerant in a Venturi tube.Ultrasonics sonochemistry · 2025Article
- Gold removal from e-waste using high-intensity focused ultrasound.Ultrasonics sonochemistry · 2024Article
- Jetting bubbles observed by x-ray holography at a free-electron laser: internal structure and the effect of non-axisymmetric boundary conditions.Experiments in fluids · 2024Article
- Effect of 3.5 % NaCl solution with different NaUltrasonics sonochemistry · 2023Article
- Manipulation of bubble collapse patterns near the wall of an adherent gas layer.Ultrasonics sonochemistry · 2023Article
- Ultrafast measurement of laser-induced shock waves.Photoacoustics · 2023Article
- Dissimilar cavitation dynamics and damage patterns produced by parallel fiber alignment to the stone surface in holmium:yttrium aluminum garnet laser lithotripsy.Physics of fluids (Woodbury, N.Y. : 1994) · 2023Article
- In situ measurement of cavitation damage from single bubble collapse using high-speed chronoamperometry.Ultrasonics sonochemistry · 2023Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The ability of cavitation bubbles to effectively focus energy is made responsible for cavitation erosion, traumatic brain injury, and even for catalyse chemical reactions. Yet, the mechanism through which material is eroded remains vague, and the extremely fast and localized dynamics that lead to material damage has not been resolved. Here, we reveal the decisive mechanism that leads to energy focusing during the non-spherical collapse of cavitation bubbles and eventually results to the erosion of hardened metals. We show that a single cavitation bubble at ambient pressure close to a metal surface causes erosion only if a non-axisymmetric energy self-focusing is at play. The bubble during its collapse emits shockwaves that under certain conditions converge to a single point where the remaining gas phase is driven to a shockwave-intensified collapse. We resolve the conditions under which this self-focusing enhances the collapse and damages the solid. High-speed imaging of bubble and shock wave dynamics at sub-picosecond exposure times is correlated to the shockwaves recorded with large bandwidth hydrophones. The material damage from several metallic materials is detected in situ and quantified ex-situ via scanning electron microscopy and confocal profilometry. With this knowledge, approaches to mitigate cavitation erosion or to even enhance the energy focusing are within reach.
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