Erosion and Lifetime of Tungsten, Gold, and Nichrome Wire Anodes in an Ultracorona in Air

Anode erosion rates and lifetime-limiting parameters for different wire materials are investigated in a positive corona in atmospheric pressure air. The electrode wear is determined by measuring electrical resistance of the corona wire. Among the test materials are W, Ni-Cr alloys, and Au-coated sta...

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Bibliographic Details
Published in:IEEE transactions on plasma science 2013-07, Vol.41 (7), p.1787-1793
Main Authors: Islamov, Rafael Sh, Krishtafovich, Yuriy A.
Format: Article
Language:English
Subjects:
Alloys
Anodes
Atmospheric pressure
Corona
Discharges (electric)
Electrodes
electrohydrodynamic
electrostatic precipitators
Gases
Gold
ion sources
Stainless steel
Wires
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Summary:Anode erosion rates and lifetime-limiting parameters for different wire materials are investigated in a positive corona in atmospheric pressure air. The electrode wear is determined by measuring electrical resistance of the corona wire. Among the test materials are W, Ni-Cr alloys, and Au-coated stainless steels. The erosion rate of the Au-coated stainless steel and Ni-Cr alloy anode wires increases approximately exponentially with the total amount of transferred charge. A unified linear relationship between the ozone generation rate and wire diameter is suggested for typically used materials.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2013.2263513