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Cavitation Erosion and Sonoluminescence at High Hydrostatic Pressures

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The erosion activity on aluminium foils and the sonoluminescence intensity have been measured by continuous ultrasound irradiation at 24.1 kHz in distilled water with different ambient hydrostatic pressure from 1 atm to about 12 atm. The erosion rate as a function of the hydrostatic pressure reaches a maximum value after which it decreases until it disappears. The erosion rate and sonoluminescence intensity dependencies on ph show similar behaviour indicating a strong correlation between the basic mechanisms involved. The marked correlation between the thresholds of the phenomena and between their intensities, suggests sonoluminescence as a potential monitor of erosion activity.

Document Type: Research Article

Publication date: 1997-01-01

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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