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Title: Gas breakdown in atmospheric pressure microgaps with a surface protrusion on the cathode

Abstract

Gas breakdown in atmospheric pressure microgaps with a cathode surface protrusion is highly sensitive to the protrusion geometry. The breakdown voltage is identified when the discharge enters the subnormal region, according to voltage-current curves calculated by a two-dimensional fluid model. The effects of the protrusion size and the aspect ratio on the gap breakdown voltage are examined. It is found that the protrusion size can have a more profound effect on the breakdown voltage than the protrusion's aspect ratio. The breakdown voltage versus the protrusion aspect ratio will show a minimum value if the aspect ratio varies in a wider range. Shrinking the size of cathode protrusion can increase the breakdown voltage faster than enlarging the gap distance in the absence of a protrusion in the same scale. As a result, the effect of the aspect ratio of the microgap on the breakdown voltage is also presented.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Michigan State Univ., East Lansing, MI (United States)
Publication Date:
Research Org.:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1540224
Alternate Identifier(s):
OSTI ID: 1456263
Grant/Contract Number:  
SC0001939
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 112; Journal Issue: 25; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; Physics

Citation Formats

Fu, Yangyang, Zhang, Peng, and Verboncoeur, John P. Gas breakdown in atmospheric pressure microgaps with a surface protrusion on the cathode. United States: N. p., 2018. Web. doi:10.1063/1.5037688.
Fu, Yangyang, Zhang, Peng, & Verboncoeur, John P. Gas breakdown in atmospheric pressure microgaps with a surface protrusion on the cathode. United States. doi:https://doi.org/10.1063/1.5037688
Fu, Yangyang, Zhang, Peng, and Verboncoeur, John P. Mon . "Gas breakdown in atmospheric pressure microgaps with a surface protrusion on the cathode". United States. doi:https://doi.org/10.1063/1.5037688. https://www.osti.gov/servlets/purl/1540224.
@article{osti_1540224,
title = {Gas breakdown in atmospheric pressure microgaps with a surface protrusion on the cathode},
author = {Fu, Yangyang and Zhang, Peng and Verboncoeur, John P.},
abstractNote = {Gas breakdown in atmospheric pressure microgaps with a cathode surface protrusion is highly sensitive to the protrusion geometry. The breakdown voltage is identified when the discharge enters the subnormal region, according to voltage-current curves calculated by a two-dimensional fluid model. The effects of the protrusion size and the aspect ratio on the gap breakdown voltage are examined. It is found that the protrusion size can have a more profound effect on the breakdown voltage than the protrusion's aspect ratio. The breakdown voltage versus the protrusion aspect ratio will show a minimum value if the aspect ratio varies in a wider range. Shrinking the size of cathode protrusion can increase the breakdown voltage faster than enlarging the gap distance in the absence of a protrusion in the same scale. As a result, the effect of the aspect ratio of the microgap on the breakdown voltage is also presented.},
doi = {10.1063/1.5037688},
journal = {Applied Physics Letters},
number = 25,
volume = 112,
place = {United States},
year = {2018},
month = {6}
}

Journal Article:
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Cited by: 7 works
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