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介质阻挡放电是大气压下高功率稳定等离子体的产生方法，在材料表面改性、等离子体医学和环保等方面具有广泛应用。为了更好理解放电气体间隙对大气压介质阻挡放电的影响，文章采用实验、理论分析与模拟的方法，分析了放电气体间隙对大气压介质阻挡放电的影响。模拟了介质阻挡放电中由丝状放电到均匀放电的放电模式转化。结果表明：对于一定的气体，气体间隙增大会导致气体间隙的电场强度降低，需要提供更高的电压维持放电；气体间隙对介质阻挡放电的放电模式转换有很大影响，当极间场强主要由空间电荷和介质表面积累电荷产生时，放电由丝状放电向均匀放电转化。实验研究结果对于介质阻挡放电装置的设计与优化具有指导意义。
Abstract：Dielectric barrier discharge is a method for generating stable plasma with high power at atmospheric pressure. It finds wide applications in material surface modification, plasma medicine and environmental protection. Experimental, theoretical analysis and simulation methods are carried out to better understand the influence of gas gap distance on dielectric barrier discharge in this paper. The transition from filament to uniform mode in dielectric barrier discharge is simulated. It is shown that for a certain gas, an increase in gas gap distance leads to a decrease of the electric field intensity in the gas gap distance; a higher voltage is required to maintain the discharge. The gas gap has a significant impact on the discharge mode transition of dielectric barrier discharge. When the electric field intensity generated by the space charges and accumulated charges on the dielectric surface predominated, the discharge transform from the filament mode to the uniform one. The results have guiding significance for the design and optimization of dielectric barrier discharge devices.
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基本信息:
DOI：10.13922/j.cnki.cjvst.202508005
中图分类号:O461
引用信息:
[1]王坤,李建,宋浩.气体间隙对大气压介质阻挡放电的影响研究[J].真空科学与技术学报,2026,46(03):285-291.DOI:10.13922/j.cnki.cjvst.202508005.
基金信息:
内江市基础研究与应用基础研究项目（2024NJJCYJNJSY015）; 四川省科技计划项目(2024NSFSC1354); 国家自然科学基金项目（12304425）
2025-11-14
2025-11-14
2025-11-14