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On the electrostrictive mechanism of nanosecond-pulsed breakdown in liquid phase
Journal article   Open access   Peer reviewed

On the electrostrictive mechanism of nanosecond-pulsed breakdown in liquid phase

Yohan Seepersad, Mikhail Pekker, Mikhail N Shneider, Danil Dobrynin and Alexander Fridman
Journal of physics. D, Applied physics, v 46(16), pp 162001-1-6
28 Mar 2013
DOI: https://doi.org/10.1088/0022-3727/46/16/162001
Featured in Collection :   UN Sustainable Development Goals @ Drexel
url
http://arxiv.org/abs/1302.0169View
SubmittedOpen Access (License Unspecified),  Open

Abstract

In this study we have studied the initial stage of the nanosecond-pulsed discharge development in liquid phase. Modelling predicts that in the case of fast rising strong nonhomogeneous electric fields in the vicinity of high-voltage pin electrode a region saturated with nanoscale non-uniformities may be developed. This phenomenon is attributed to the electrostriction mechanisms and may be used to explain development of breakdown in liquid phase. In this work, schlieren method was used in order to demonstrate formation of negative pressure region in liquids with different dielectric permittivity constants: water, ethanol and ethanol-water mixture. It is shown that this density perturbation, formed at the raising edge of the high-voltage pulse, is followed by a generation of a shock wave propagating with the speed of sound away from the electrode, with negative pressure behind it.

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44 citations in Web of Science
52 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Physics, Applied
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