Atmospheric Pressure Radio Frequency Dielectric Barrier Discharges in Nitrogen/Argon

This work reports the experimental results on the characteristics of radio frequency dielectric barrier N2/Ar discharges. Depending on the nitrogen content in the feed gas and the input power, the discharge can operate in two different modes： a homogeneous glow discharge and a constricted discharge....

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Published inPlasma science & technology Vol. 15; no. 9; pp. 871 - 874
Main Author 刘忠伟 杨丽珍 王正铎 桑利军 朱强 李森
Format Journal Article
LanguageEnglish
Published 01.09.2013
Subjects
Barometric pressure
Barriers
Dielectrics
Electrodes
Gas temperature
Optical emission spectroscopy
Plasma temperature
Radio frequencies
Rotational
介质阻挡放电
发射光谱
大气压
射频
氩气
氮气
等离子体温度
输入功率
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ISSN1009-0630
DOI10.1088/1009-0630/15/9/07

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Summary:This work reports the experimental results on the characteristics of radio frequency dielectric barrier N2/Ar discharges. Depending on the nitrogen content in the feed gas and the input power, the discharge can operate in two different modes： a homogeneous glow discharge and a constricted discharge. With increasing input power, the number of discharge columns increases. The discharge columns have starlike structures and exhibit symmetric self-organized arrangement. Optical emission spectroscopy was performed to estimate the plasma temperature. Spatially resolved gas temperature measurements, determined from NO emission rotational spectroscopy were taken across the 4.4 mm gap filled by the discharge. Gas temperature in the middle of the gas gap is lower than that close to the electrodes.
Bibliography:LIU Zhongwei YANG Lizhen WANG Zhengduo SANG Lijun ZHU Qiang LI Sen（ Laboratory of Plasma Physics and Materials, Beijing Institute of Graphic Communication, Beijing 102600, China）
atmospheric pressure, dielectric barrier discharge, radio frequency discharge
This work reports the experimental results on the characteristics of radio frequency dielectric barrier N2/Ar discharges. Depending on the nitrogen content in the feed gas and the input power, the discharge can operate in two different modes： a homogeneous glow discharge and a constricted discharge. With increasing input power, the number of discharge columns increases. The discharge columns have starlike structures and exhibit symmetric self-organized arrangement. Optical emission spectroscopy was performed to estimate the plasma temperature. Spatially resolved gas temperature measurements, determined from NO emission rotational spectroscopy were taken across the 4.4 mm gap filled by the discharge. Gas temperature in the middle of the gas gap is lower than that close to the electrodes.
34-1187/TL
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ISSN:1009-0630
DOI:10.1088/1009-0630/15/9/07