Influence of Electrode Characteristics on DC Point-to-Plane Breakdown in High-Pressure Gaseous and Supercritical Carbon Dioxide

Author

Lock, Evgeniya H. ; Saveliev, Alexei V. ; Kennedy, Lawrence A.

Author_Institution

Dept. of Mech. & Ind. Eng., Univ. of Illinois at Chicago, Chicago, IL

Volume

37

Issue

6

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

1078

Lastpage

1083

Abstract

Discharges in supercritical conditions is a new field in plasma science. The supercritical phase has distinctive properties that may allow for unique plasma processing applications. In this paper, we study plasma generation in a point-to-plane geometry in the micrometer scale. The effects of needle characteristics, including tip diameter and plane electrode surface roughness, on discharge initiation are studied. The influence of pressure, temperature, and fluid density on breakdown voltage and reduced breakdown electric field are also investigated.

Keywords

carbon compounds; electrodes; high-frequency discharges; plasma density; plasma pressure; plasma production; plasma temperature; CO₂; DC point-to-plane breakdown; breakdown electric field; breakdown voltage; electrode characteristics; high-pressure gaseous carbon dioxide; needle tip diameter; plane electrode surface roughness; plasma generation; plasma processing applications; supercritical carbon dioxide; supercritical discharges; Breakdown; carbon dioxide; microplasma; supercritical fluid (SCF);

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2009.2018844

Filename

4909042