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Title: Dielectric breakdown properties of N{sub 2}–O{sub 2} mixtures by considering electron detachments from negative ions

Abstract

The paper analyzes the dielectric breakdown properties of N{sub 2}–O{sub 2} mixtures at different O{sub 2} concentrations and gas pressures, taking into account electron detachments from negative ions. The reduced effective ionization coefficients α(eff)/N in N{sub 2}–O{sub 2} mixtures at different O{sub 2} concentrations and gas pressures were calculated and analyzed, by considering electron detachments. The critical reduced electric fields (E/N){sub cr} and the critical electron temperature T{sub b} were then determined. The result indicates a clear enhancement of α(eff)/N by collisional detachments, which causes a reduction in the (E/N){sub cr}. In addition, a synergistic effect in the N{sub 2}–O{sub 2} mixture was also observed in both (E/N){sub cr} and T{sub b}. The value of T{sub b} was decreased by the increase of pd product, however, T{sub b} tended to be constant at relatively high pd products.

Authors:
;  [1]
  1. School of Automation, Northwestern Polytechnical University, Xi'an, Shaanxi 710072 (China)
Publication Date:
OSTI Identifier:
22600060
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 23; Journal Issue: 7; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANIONS; BREAKDOWN; CONCENTRATION RATIO; DIELECTRIC MATERIALS; ELECTRIC FIELDS; ELECTRON DETACHMENT; ELECTRON TEMPERATURE; ELECTRONS; IONIZATION; MIXTURES

Citation Formats

Zhao, Hu, E-mail: hzhao@nwpu.edu.cn, and Lin, Hui. Dielectric breakdown properties of N{sub 2}–O{sub 2} mixtures by considering electron detachments from negative ions. United States: N. p., 2016. Web. doi:10.1063/1.4956466.
Zhao, Hu, E-mail: hzhao@nwpu.edu.cn, & Lin, Hui. Dielectric breakdown properties of N{sub 2}–O{sub 2} mixtures by considering electron detachments from negative ions. United States. doi:10.1063/1.4956466.
Zhao, Hu, E-mail: hzhao@nwpu.edu.cn, and Lin, Hui. 2016. "Dielectric breakdown properties of N{sub 2}–O{sub 2} mixtures by considering electron detachments from negative ions". United States. doi:10.1063/1.4956466.
@article{osti_22600060,
title = {Dielectric breakdown properties of N{sub 2}–O{sub 2} mixtures by considering electron detachments from negative ions},
author = {Zhao, Hu, E-mail: hzhao@nwpu.edu.cn and Lin, Hui},
abstractNote = {The paper analyzes the dielectric breakdown properties of N{sub 2}–O{sub 2} mixtures at different O{sub 2} concentrations and gas pressures, taking into account electron detachments from negative ions. The reduced effective ionization coefficients α(eff)/N in N{sub 2}–O{sub 2} mixtures at different O{sub 2} concentrations and gas pressures were calculated and analyzed, by considering electron detachments. The critical reduced electric fields (E/N){sub cr} and the critical electron temperature T{sub b} were then determined. The result indicates a clear enhancement of α(eff)/N by collisional detachments, which causes a reduction in the (E/N){sub cr}. In addition, a synergistic effect in the N{sub 2}–O{sub 2} mixture was also observed in both (E/N){sub cr} and T{sub b}. The value of T{sub b} was decreased by the increase of pd product, however, T{sub b} tended to be constant at relatively high pd products.},
doi = {10.1063/1.4956466},
journal = {Physics of Plasmas},
number = 7,
volume = 23,
place = {United States},
year = 2016,
month = 7
}
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