Atmospheric Pressure Radio Frequency Dielectric Barrier Discharges in Nitrogen/Argon

LIU Zhongwei (刘忠伟); YANG Lizhen (杨丽珍); WANG Zhengduo (王正铎); et al.

doi:10.1088/1009-0630/15/9/07

Plasma Science and Technology > 2013 > 15(9): 871-874. > DOI: 10.1088/1009-0630/15/9/07

LIU Zhongwei (刘忠伟), YANG Lizhen (杨丽珍), WANG Zhengduo (王正铎), et al.. Atmospheric Pressure Radio Frequency Dielectric Barrier Discharges in Nitrogen/Argon[J]. Plasma Science and Technology, 2013, 15(9): 871-874. DOI: 10.1088/1009-0630/15/9/07

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Atmospheric Pressure Radio Frequency Dielectric Barrier Discharges in Nitrogen/Argon

Laboratory of Plasma Physics and Materials, Beijing Institute of Graphic Communication, Beijing 102600, China

Funds: supported by National Natural Science Foundation of China (No.11175024), Scientific Research Common Program of Beijing Municipal Education Commission of China (Nos.KM201110015008, KM201310015006)

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Received Date: July 15, 2012

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Abstract

Abstract

This work reports the experimental results on the characteristics of radio frequency dielectric barrier N ₂ /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.
- atmospheric pressure,
- dielectric barrier discharge,
- radio frequency discharge

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