About: Erosion of needle electrodes in pulsed corona discharge in water

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Description	Erosion of needle electrodes in the pulsed corona discharge in water with a pulse energy of 2-3 J was investigated in dependence on the electrode material (platinum, tungsten and stainless-steel) and the solution conductivity (100 and 500 μS/cm). Erosion of electrodes remarkable increased with the higher solution conductivity for all three tested metals. The highest erosion rates were determined for tungsten while platinum was the least eroded material. In addition to the dominant melting effect, release of anode material by the electrolysis significantly contributed to the total erosion of needle electrodes. The highest contribution of electrolysis was determined for stainless-steel electrodes that released up to 40-50% of eroded metal in the form of iron ions. Peculiar protrusions were observed on the surface of eroded tungsten electrodes. Erosion of needle electrodes in the pulsed corona discharge in water with a pulse energy of 2-3 J was investigated in dependence on the electrode material (platinum, tungsten and stainless-steel) and the solution conductivity (100 and 500 μS/cm). Erosion of electrodes remarkable increased with the higher solution conductivity for all three tested metals. The highest erosion rates were determined for tungsten while platinum was the least eroded material. In addition to the dominant melting effect, release of anode material by the electrolysis significantly contributed to the total erosion of needle electrodes. The highest contribution of electrolysis was determined for stainless-steel electrodes that released up to 40-50% of eroded metal in the form of iron ions. Peculiar protrusions were observed on the surface of eroded tungsten electrodes. (en) Byla zkoumána eroze jehlových výbojových elektrod účinkem impulsního elektrického výboje ve vodě v závislosti na typu kovového materiálu elektrody (platina, wolfram, nerez) a elektrolytické konduktivitě vody (100 a 500 μS/cm). Míra eroze elektrod výrazně vzrůstala s vodivostí u všech tří kovů. Nejvyšší erozi vykazoval wolfram, platina naopak erodovala nejméně. Na erozi se vedle dominantního vlivu tání povrchu elektrody výbojem významně podílela také elektrolýza. Největší podíl elektrolýzy na erozi byl stanoven při použití nerezových elektrod (40-50%). Na povrchu wolframových elektrod byla v důsledku eroze výbojem pozorována tvorba ostrých výčnělků. (cs)
Title	Erosion of needle electrodes in pulsed corona discharge in water Eroze jehlových elektrod v impulsním korónovém výboji ve vodě (cs) Erosion of needle electrodes in pulsed corona discharge in water (en)
skos:prefLabel	Erosion of needle electrodes in pulsed corona discharge in water Eroze jehlových elektrod v impulsním korónovém výboji ve vodě (cs) Erosion of needle electrodes in pulsed corona discharge in water (en)
skos:notation	RIV/61389021:_____/06:00042399!RIV07-AV0-61389021
http://linked.open.../vavai/riv/strany	916;924
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(KSK2043105), Z(AV0Z10100523), Z(AV0Z20430508)
http://linked.open...iv/cisloPeriodika	suppl. B
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Babický, Václav Šunka, Pavel Člupek, Martin Lukeš, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky plazmatu AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	474413
http://linked.open...ai/riv/idVysledku	RIV/61389021:_____/06:00042399
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	erosion; corona discharge; water; plasma (en)
http://linked.open.../riv/klicoveSlovo	corona discharge erosion plasma water
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[C1FCBD853369]
http://linked.open...i/riv/nazevZdroje	Czechoslovak Journal of Physics
http://linked.open...in/vavai/riv/obor	BL
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Processes in Plasmas and Interactions of Radiation with Matter
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	56
http://linked.open...iv/tvurceVysledku	Babický, Václav Lukeš, Petr Novák, Josef Člupek, Martin Šunka, Pavel Málková, Zuzana Štefečka, M. Skalný, J. D.
http://linked.open...n/vavai/riv/zamer	Intense Radiation Sources and Radiation-Matter Interaction Physical and chemical processes in plasmas and theis applications
issn	0011-4626
number of pages	18 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Erosion of needle electrodes in pulsed corona discharge in water Erosion of needle electrodes in pulsed corona discharge in water

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