Division of Environmental Physics - User: igor
Faculty of Mathematics, Physics and Informatics, Comenius University Bratislava

Micro-discharge in Porous Ceramics

Matsui Y., Hensel K., Takashima K., Katsura S., Mizuno A.
International COE Forum on Plasma Science and Technology, Nagoya (Japan), April 5-7, 65-66 (2004)

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Abstract:

Fundamental characteristic of micro-discharge in porous dielectric materials has been investigated in this study. We expected that the application of DC high voltage could generate manynarrow micro-discharges inside and on the surface of various ceramics materials. Five types ofceramics with different perforation levels (size of pores) have been tested using negative or positiveDC high voltage. Needle-mesh and mesh-mesh type electrodes were investigated. A stable micro-discharge was formed using ceramics with average pores of 90 microns and 15 microns.The micro-discharge was affected by water vapor concentration.