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Influence of dielectric materials on discharge characteristics of coaxial DBD driven by nanosecond pulse voltage
Plasma Research Express Pub Date : 2020-08-05 , DOI: 10.1088/2516-1067/abaa36
Feng Liu , Haijing Chu , Yue Zhuang , Zhi Fang

The dielectric material is one of the important influencing factors for the dielectric barrier discharge (DBD) characteristics and its application effects. The glass, quartz, polycarbonate (PC), and polytetrafluoroethylene (PTFE) materials are selected as dielectric materials of a coaxial DBD reactor. A nanosecond (ns) pulse power supply is used to drive the coaxial DBD reactors and the influences of dielectric materials on the optical, electrical, and temperature characteristics of DBDs are recorded. The mechanisms of the effects of the dielectric materials on the DBD characteristics are analysed by equivalent electrical model and heat conduct model. From the observation of the discharge, all of the discharges are in the diffuse mode without filament and the coaxial DBD with glass dielectric barrier are more homogenous. With the electrical analysis, it is found that the glass dielectric barrier with larger relative permittivity compared with the other materials leads to a bette...

中文翻译:

电介质材料对纳秒脉冲电压驱动的同轴DBD放电特性的影响

介电材料是影响介电势垒放电(DBD)特性及其应用效果的重要影响因素之一。选择玻璃,石英,聚碳酸酯(PC)和聚四氟乙烯(PTFE)材料作为同轴DBD反应器的介电材料。使用纳秒(ns)脉冲电源来驱动同轴DBD反应器,并记录介电材料对DBD的光学,电学和温度特性的影响。通过等效电模型和热传导模型分析了介电材料对DBD特性的影响机理。从放电的观察,所有放电均处于无丝的扩散模式,并且具有玻璃介电阻挡层的同轴DBD更均匀。
更新日期:2020-08-31
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