The Temperature of Cavitation

@article{Flint1991TheTO,
  title={The Temperature of Cavitation},
  author={Edward B. Flint and Kenneth S. Suslick},
  journal={Science},
  year={1991},
  volume={253},
  pages={1397 - 1399}
}
Ultrasonic irradiation of liquids causes acoustic cavitation: the formation, growth, and implosive collapse of bubbles. Bubble collapse during cavitation generates transient hot spots responsible for high-energy chemistry and emission of light. Determination of the temperatures reached in a cavitating bubble has remained a difficult experimental problem. As a spectroscopic probe of the cavitation event, sonoluminescence provides a solution. Sonoluminescence spectra from silicone oil were… 

Spectrally resolved sonoluminescence as a probe of cavitation

The collapse of bubbles during acoustic cavitation in liquids generates intense local heating, either by adiabatic compression or through shock wave formation. We have been able to quantify local

Inside a collapsing bubble: sonoluminescence and the conditions during cavitation.

Application of spectrometric methods of pyrometry as well as tools of plasma diagnostics to relative line intensities, profiles, and peak positions have allowed the determination of intracavity temperatures and pressures.

Sonoluminescence temperatures during multi-bubble cavitation

Acoustic cavitation—the formation and implosive collapse of bubbles—occurs when a liquid is exposed to intense sound. Cavitation can produce white noise, sonochemical reactions, erosion of hard

Hot Spot Conditions during Multi-Bubble Cavitation

Together with the chemical effects of ultrasound, light is often emitted [1–5]. Such sonoluminescence provides an extremely useful spectroscopic probe of the conditions created during cavitation

The Chemical History of a Bubble.

The studies discussed herein have revealed that extraordinary conditions are generated inside the collapsing bubbles in ordinary room-temperature liquids: observable temperatures exceeding 15 000 K, pressures of well over 1000 bar (more than the pressure at the bottom of the Mariana Trench), and heating and cooling rates in excess of 1000 K·s-1.

Thermal equilibration during cavitation.

Flint and Suslick (1) reported the observation of C2(d3Hg a3E11) Swan emission from the ultrasonic cavitation of silicone oil and other hydrocarbons. The observed emission spectrum was accurately

Ultrasound Induced Cavitation and Sonochemical Yields

The introduction of a strong acoustic field to an aqueous solution results in the generation of cavitation microbubbles. The growth and collapse of these microbubbles focuses and transfers energy

Pressure measurements during acoustic cavitation by sonoluminescence

Acoustic cavitation in llquids generates a variety of high energy chemical processes, including sonoluminescence. Intense local heating, either by adiabatic compression or through shock wave

Measuring the Extreme Conditions Created During Cavitation

Extreme temperatures and pressures are produced through acoustic cavitation: the formation, growth and collapse of bubbles in a liquid irradiated with high intensity ultrasound. Single bubbles have
...

References

SHOWING 1-10 OF 33 REFERENCES

Sonoluminescence from non-aqueous liquids

The first spectrally resolved sonoluminescence spectra from hydrocarbon and halocarbon liquids originate unambiguously from excited-state molecules created during acoustic cavitation.

The sonochemical hot spot

The origin of “sonochemistry” is acoustic cavitation: the formation, expansion, and implosive collapse of bubbles in liquids irradiated with ultrasound. The compression of such bubbles generates

The Site of Sonochemical Reactions

  • K. Suslick
  • Physics, Chemistry
    IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
  • 1986
It is shown for the first time that primary sonochemical reactions occur both in the vapor phase and in the liquid surrounding the cavitation event, and an excellent correlation between the log of the sonochemical rate and the solvent vapor pressure is found.

Free radical generation by ultrasound in aqueous and nonaqueous solutions.

Evidence to support theoretical predictions of transient cavitation and the use of spin trapping and electron spin resonance to identify hydrogen atoms and hydroxyl radicals conclusively is presented with particular emphasis on sonoluminescence which provides some non-chemical evidence for the formation of free radicals.

Sonoluminescence produced by ‘‘stable’’ cavitation

This article reports on a phenomenological study of sonoluminescence produced by acoustic cavitation in which a sensitive, high‐gain image intensifier tube (EMI type 9912) was used to view the

Sonoluminescence from nonaqueous liquids: emission from small molecules

Sonoluminescence spectra from nonaqueous liquids under a variety of gases are presented. Ultrasonic irradiation of alkanes under Ar leads to emission from C2, C2H, and CH. When nitrogen is present,