摘要
实验以氮气和氮气掺杂氮气作为放电气体,在大气压条件下使用13.56MHz射频电源进行双介质以及单介质阻挡放电。实验记录了气体击穿后随电源功率增大的I-V曲线,同时使用ICCD照相机以及单反相机给出了相应的放电照片。研究发现氮气双介质放电在电源最大功率内均为均匀辉光放电,并且可以从I-V曲线明显判断出放电从a模式到y模式的转变。在氨气单介质放电以及氮气掺杂氮气的双介质和单介质放电中,均出现了丝状放电,在放电模式的转变过程中I-V曲线均呈现出明显的不同特点。本文分析认为,从IV曲线基本可以判断出大气压介质阻挡放电从a模式到y模式的转变以及是否存在丝状放电。
Herein, we experimentally addressed the discharge modes, including a, 7 and filamentary discharge modes,in radio-frequency ( 13. 56 MHz) dielectric barrier discharge ( DBD) of argon and/or argon-nitrogen mixture gases at atmospheric pressure. The correlation between the I-V characteristics and the discharge modes was in-vestigated with intensified charge coupled device and single lens reflex cameras. The results show that the double dielectric barrier Ar-DBD is capable of generating uniform stable glow discharge within the upper power limit, and that the a-to-y mode transition can be distinctively identified by means of the I-V curve. Filamentary discharge emerged in single dielectric barrier Ar-DBD and Ar/N2 DBDs;and the fine structures of the I-V curve describe well the discharge mode,especially the mode transition. We suggest that the I-V curve may well describe a-to-y mode transition and existence of filamentary discharge.
作者
李森
潘杰
陈辰
王琳
陈强
刘忠伟
Li Sen;Pan Jie;Chen Chen;Wang Lin;Chen Qiang;Liu Zhongwei(Shanghai Publishing and Printing College, Shanghai 200093 , China;Laboratory of Plasma Physics and Materials, Beijing Institute of Graphic Communication, Beijing 102600, China)
出处
《真空科学与技术学报》
EI
CAS
CSCD
北大核心
2019年第4期326-331,共6页
Chinese Journal of Vacuum Science and Technology
基金
上海市教育委员会
上海市教育发展基金会“晨光计划”(16CGB10)
关键词
大气压
介质阻挡放电
放电模式
Atmospheric pressure
Dielectric barrier discharge
Discharge mode
