Single bubble perturbation in cavitation proximity of solid glass: hot spot versus distance

Darya Radziuk; Helmuth Möhwald; Kenneth Suslick

doi:10.1039/C3CP52850B

Single bubble perturbation in cavitation proximity of solid glass: hot spot versus distance

Darya Radziuk,^a^b Helmuth Möhwald^b and Kenneth Suslick*^a

* Corresponding authors

^a University of Illinois at Urbana-Champaign, Department of Chemistry (Chemical and Life Science Building), 600 S. Mathews Av., Urbana, USA
E-mail: radziuk@illinois.edu, ksuslick@illinois.edu
Fax: +1 217-244-3186
Tel: +1 217-333-1532

^b Max-Planck Institute of Colloids and Interfaces, Department of Interfaces, Am Mühlenberg 1, D14476 Potsdam (Science Campus Golm), Germany
E-mail: darya.radziuk@mpikg.mpg.de, helmuth.moehwald@mpikg.mpg.de
Fax: +49 (0)331-567-9202
Tel: +49 (0)331-567-9447

Abstract

A systematic study of the energy loss of a cavitation bubble in a close proximity of a glass surface is introduced for the first time in a low acoustic field (1.2–2.4 bar). Single bubble sonoluminescence (SBSL) is used as a tool to predict the temperature and pressure decrease of bubble (μm) versus surface distance. A glass as a model system is used to imitate the boundary conditions relevant for nano- or micromaterials. SBSL preequilibrated with 5% argon is perturbed by a glass rod with the tip (Z-perturbation) and with the long axis (X-perturbation) at a defined distance. From 2 mm to 500 μm argon-SBSL lines monotonically narrow and the effective emission temperature decreases from 9000 K to 6800 K comparable to multiple bubbles. The electron density decreases by two orders of magnitude in Z-perturbation and is by a factor of two higher in X-perturbation than the unperturbed cavitating bubble. The perturbed single bubble sonoluminescence pressure decreases from 2700 atm to 1200 atm at 2.4 bar. In water new non-SBSL SiO molecular emission lines are observed and OH emission disappears.

Supplementary files

Publication details

The article was received on 08 Jul 2013, accepted on 20 Aug 2013 and first published on 21 Aug 2013

Article type: Paper

DOI: 10.1039/C3CP52850B

Citation: Phys. Chem. Chem. Phys., 2014,16, 3534-3541

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Single bubble perturbation in cavitation proximity of solid glass: hot spot versus distance

D. Radziuk, H. Möhwald and K. Suslick, Phys. Chem. Chem. Phys., 2014, 16, 3534
DOI: 10.1039/C3CP52850B
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Physical Chemistry Chemical Physics

Single bubble perturbation in cavitation proximity of solid glass: hot spot versus distance

Abstract

Supplementary files

Publication details

Single bubble perturbation in cavitation proximity of solid glass: hot spot versus distance

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