Application of Y–ZrO2 microtubes as dielectric barrier material in a He atmospheric pressure micro-plasma jet

Author:

Talviste RasmusORCID,Jõgi Indrek,Tätte Tanel,Part Marko,Raud Jüri,Paris Peeter

Abstract

AbstractThis work focused on the application of novel 8% yttria-stabilized Zr2O3 (YSZ) microtubes with an inner diameter of 60 µm as dielectric material in an atmospheric pressure micro-plasma jet (APPJ). Furthermore, a comparison with quartz microtubes allowed to study the effect of tube material on plasma properties. Optical emission spectroscopy was employed to determine various spectral line ratios including ratios of He lines 667 nm (31D-21P) to 728 nm (31S-21P) which is indicative of electric field strength. The 667/728 nm line ratio in the YSZ microtube was about 2/3 the value in the 60-µm quartz tube. However, increasing the quartz tube’s inner diameter from 60 to 500 µm decreased the 667/728 nm line ratio 40 times. Additionally, the spatio-temporal evolution of the ionization wave was measured in the YSZ microtube and the velocity of the ionization wave was determined to accelerate from 67 km/s near the powered electrode to 161 km/s near the tube orifice.

Funder

Eesti Teadusagentuur

Publisher

Springer Science and Business Media LLC

Subject

General Earth and Planetary Sciences,General Physics and Astronomy,General Engineering,General Environmental Science,General Materials Science,General Chemical Engineering

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