Extreme conditions during multibubble cavitation: Sonoluminescence as a spectroscopic probe

Kenneth S. Suslick; Nathan C. Eddingsaas; David J. Flannigan; Stephen D. Hopkins; Hangxun Xu

doi:10.1016/j.ultsonch.2010.12.012

Extreme conditions during multibubble cavitation: Sonoluminescence as a spectroscopic probe

Kenneth S. Suslick, Nathan C. Eddingsaas, David J. Flannigan, Stephen D. Hopkins, Hangxun Xu

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

We review recent work on the use of sonoluminescence (SL) to probe spectroscopically the conditions created during cavitation, both in clouds of collapsing bubbles (multibubble sonoluminescence, (MBSL)) and in single bubble events. The effective MBSL temperature can be controlled by the vapor pressure of the liquid or the thermal conductivity of the dissolved gas over a range from ∼1600 to ∼9000 K. The effective pressure during MBSL is ∼300 bar, based on atomic line shifts. Given nanosecond emission times, this means that cooling rates are >10¹² K/s. In sulfuric and phosphoric acid, the low volatility and high solubility of any sonolysis products make bubble collapse more efficient and evidence for an optically opaque plasma core is found.

Original language	English (US)
Pages (from-to)	842-846
Number of pages	5
Journal	Ultrasonics Sonochemistry
Volume	18
Issue number	4
DOIs	https://doi.org/10.1016/j.ultsonch.2010.12.012
State	Published - Jul 2011

Keywords

Cavitation
Emission temperature
MBSL
Plasma
Sonoluminescence

ASJC Scopus subject areas

Chemical Engineering (miscellaneous)
Environmental Chemistry
Radiology Nuclear Medicine and imaging
Acoustics and Ultrasonics
Organic Chemistry
Inorganic Chemistry

Online availability

10.1016/j.ultsonch.2010.12.012

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title = "Extreme conditions during multibubble cavitation: Sonoluminescence as a spectroscopic probe",

abstract = "We review recent work on the use of sonoluminescence (SL) to probe spectroscopically the conditions created during cavitation, both in clouds of collapsing bubbles (multibubble sonoluminescence, (MBSL)) and in single bubble events. The effective MBSL temperature can be controlled by the vapor pressure of the liquid or the thermal conductivity of the dissolved gas over a range from ∼1600 to ∼9000 K. The effective pressure during MBSL is ∼300 bar, based on atomic line shifts. Given nanosecond emission times, this means that cooling rates are >1012 K/s. In sulfuric and phosphoric acid, the low volatility and high solubility of any sonolysis products make bubble collapse more efficient and evidence for an optically opaque plasma core is found.",

keywords = "Cavitation, Emission temperature, MBSL, Plasma, Sonoluminescence",

author = "Suslick, {Kenneth S.} and Eddingsaas, {Nathan C.} and Flannigan, {David J.} and Hopkins, {Stephen D.} and Hangxun Xu",

note = "Funding Information: We dedicate this paper to the memory of Oleg Abramov, a great bear of a man, whose good fellowship and thoughtful approach to science we sorely miss. In 1994, Oleg and his daughter spent an extended stay in our labs in Urbana, which was a highpoint of our sonochemical research. We gratefully acknowledge the financial support of the U.S. National Science Foundation (CHE and DMR) .",

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language = "English (US)",

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AU - Suslick, Kenneth S.

AU - Eddingsaas, Nathan C.

AU - Flannigan, David J.

AU - Hopkins, Stephen D.

AU - Xu, Hangxun

N1 - Funding Information: We dedicate this paper to the memory of Oleg Abramov, a great bear of a man, whose good fellowship and thoughtful approach to science we sorely miss. In 1994, Oleg and his daughter spent an extended stay in our labs in Urbana, which was a highpoint of our sonochemical research. We gratefully acknowledge the financial support of the U.S. National Science Foundation (CHE and DMR) .

PY - 2011/7

Y1 - 2011/7

N2 - We review recent work on the use of sonoluminescence (SL) to probe spectroscopically the conditions created during cavitation, both in clouds of collapsing bubbles (multibubble sonoluminescence, (MBSL)) and in single bubble events. The effective MBSL temperature can be controlled by the vapor pressure of the liquid or the thermal conductivity of the dissolved gas over a range from ∼1600 to ∼9000 K. The effective pressure during MBSL is ∼300 bar, based on atomic line shifts. Given nanosecond emission times, this means that cooling rates are >1012 K/s. In sulfuric and phosphoric acid, the low volatility and high solubility of any sonolysis products make bubble collapse more efficient and evidence for an optically opaque plasma core is found.

AB - We review recent work on the use of sonoluminescence (SL) to probe spectroscopically the conditions created during cavitation, both in clouds of collapsing bubbles (multibubble sonoluminescence, (MBSL)) and in single bubble events. The effective MBSL temperature can be controlled by the vapor pressure of the liquid or the thermal conductivity of the dissolved gas over a range from ∼1600 to ∼9000 K. The effective pressure during MBSL is ∼300 bar, based on atomic line shifts. Given nanosecond emission times, this means that cooling rates are >1012 K/s. In sulfuric and phosphoric acid, the low volatility and high solubility of any sonolysis products make bubble collapse more efficient and evidence for an optically opaque plasma core is found.

KW - Cavitation

KW - Emission temperature

KW - MBSL

KW - Plasma

KW - Sonoluminescence

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Extreme conditions during multibubble cavitation: Sonoluminescence as a spectroscopic probe

Abstract

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