楔形介质层对大气压介质阻挡放电的影响研究  

Influence of Wedge-Shaped Dielectric Layer on Atmospheric Dielectric Barrier Discharge

作　　者：李建[1] 王坤 王世庆[2] 金凡亚[2] 但敏[2] LI Jian;WANG Kun;WANG Shiqing;JIN Fanya;DAN Min(Neijiang Normal University,Neijiang 641100,China;Southwestern Institute of Physics,Chengdu 610041,China)

机构地区：[1]内江师范学院,内江641100 [2]核工业西南物理研究院,成都610041

出　　处：《真空科学与技术学报》2023年第9期789-795,共7页Chinese Journal of Vacuum Science and Technology

基　　金：内江师范学院校级重点项目(2020ZD010,X22B0105)。

摘　　要：为了研究楔形介质层对大气压介质阻挡放电的影响,加入楔形石英石作为附加介质层。通过实验和模拟分析的方法研究了楔形介质层对大气压介质阻挡放电的影响。结果表明:楔形介质层对介质阻挡放电有很大影响,放电在楔形介质层的尖端区域首先击穿,再沿介质层表面弥散。楔形介质层内部出现的场强“低谷区”,提高了其尖端附近的电场强度;楔形介质层提高了介质层表面积,介质表面积累的电荷改变了空间电场分布,对放电击穿、电子密度和电子温度有很大影响。介质层厚度引起的放电优先性问题为相关设计提供了更多的灵活性。Wedge-shaped quartz stone strips were added as an additional dielectric layer to study their influence on dielectric barrier discharge.The influence of wedge-shaped dielectric layer on dielectric barrier discharge was studied experimentally and simulated using simulation software.It is shown that the wedge-shaped dielectric layer has a great influence on the dielectric barrier discharge.The discharge breaks down near the tip of the wedge-shaped dielectric layer firstly and diffuses along the surface of the dielectric layer.A"low valley"of the electric field intensity appears inside the wedge-shaped dielectric layer,which increases the electric field intensity near the tip.The wedge-shaped dielectric layer changes the area of the dielectric layer.The accumulated charge on the dielectric surface changes the spatial electric field distribution,which has a great impact on the breakdown,the electron density,and the electron temperature.The discharge priority issue induced by the thickness of the dielectric layer provides more flexibility for related designation.

关 键 词：介质阻挡放电 等离子体 楔形介质层 放电结构 

分 类 号：O539[理学—等离子体物理]