Informace o publikaci

Manipulation of powdery materials by a sequentially pulsed coplanar barrier discharge

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RÁHEĽ Jozef ZEMÁNEK Miroslav ILČÍKOVÁ Martina ZISCHKA Radek HAŠANA Jaromír

Rok publikování 2019
Druh Článek ve sborníku
Konference SAPP XXII, Book of Contributed Papers
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
Klíčová slova plasma; DBD; ceramic powders
Popis Practical implementation of dielectric barrier discharge (DBD) plasma activation of fine powders requires a proper management of their transport through the active discharge zone. We present results of a new method for the powder transport, which takes benefit from the natural tendency of powders to concentrate outside the DBD’s microfilament plasma channel. We have extended the number of DBD high voltage electrodes to 3 and 4 and started to sequentially energize only a chosen electrode pair. Locally fired plasma caused powders to pile up outside the formed discharge zone. Switching to another electrode pair shifted the place where powders pile up to a neighboring area. At optimized conditions, the repetitive shift of piling area was sufficient to initiate the directional drift of treated powders.
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