摘要
在外加交流高压的条件下,多孔陶瓷内可以产生稳定的大气压微放电.通过对放电的图片以及电压、电流的分析得出微放电的部分物理特性.结果显示:陶瓷微孔内的微放电并不是由陶瓷的表面放电转变而成;多孔陶瓷孔内微放电的起始放电电压随着陶瓷厚度增加而升高,而随着多孔陶瓷孔隙率的增加而降低.
The microdischarges generated inside porous ceramics by AC high voltage represent a novel way to create stable atmospheric pressure plasmas. The physical characteristics of discharge in porous ceramics were investigated by photographic visualization and electrical measurements. Experimental results show that the surface discharge is not converted into pore microdischarges, and the onset voltage of pore microdiseharges increases with the thickness of ceramics, while significantly decreasing with increasing porosity of ceramics.
作者
倪卫洁
周志鹏
梁立鹏
张济民
李辉
NI Weijie;ZHOU Zhipeng;LIANG Lipeng;ZHANG Jimin;LI Hui(Departmentof Thermal Scieme and Energy Engineering,Univerity of Sciene and Technology of China,Hefei 230027,China)
基金
Supported by National Natural Science Foundation of China(50876101,10975136)
Hi-Tech Research and DevelopmentProgram(863)of China(2007AA05Z105)
关键词
微放电
多孔陶瓷
表面放电
低温等离子体
microdischarge
porous ceramics
surface discharge
non-thermal plasma
