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Long Plasma Jet Generated by DC Discharge in N2 at Atmospheric Pressure: Impact of Trace Admixtures on Composition of Reactive Species in Far Afterglow
The object under study is a long plasma jet (up to 15 cm) generated by a steady-state dc discharge in N 2 at atmospheric pressure. Successful usage of long afterglow plasma jet for distant treatment of 3-D object of a complicated shape with deep slots was demonstrated. This paper focuses on a role o...
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Published in: | IEEE transactions on plasma science 2015-01, Vol.43 (3), p.745-752 |
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container_end_page | 752 |
container_issue | 3 |
container_start_page | 745 |
container_title | IEEE transactions on plasma science |
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creator | Akishev, Yuri Balakirev, Anton Grushin, Michail Karalnik, Vladimir Kochetov, Igor Napartovich, Anatoly Petryakov, Alexander Trushkin, Nikolay |
description | The object under study is a long plasma jet (up to 15 cm) generated by a steady-state dc discharge in N 2 at atmospheric pressure. Successful usage of long afterglow plasma jet for distant treatment of 3-D object of a complicated shape with deep slots was demonstrated. This paper focuses on a role of trace impurities in plasma-forming gas on chemical composition of reactive species in far afterglow plasma. This role was studied numerically by example of the additives in high-purity nitrogen contained in high-pressure N 2 tank. It is shown that small oxygen admixtures (at 10 ppm level) to N 2 can be more effective in production of atomic oxygen than ambient air. Besides, trace admixtures of water vapor and hydrocarbons (at parts per million level) lead to full change in a composition of reactive species in far afterglow in comparison with the set of primary species generated by plasma source. |
doi_str_mv | 10.1109/TPS.2014.2383618 |
format | article |
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Successful usage of long afterglow plasma jet for distant treatment of 3-D object of a complicated shape with deep slots was demonstrated. This paper focuses on a role of trace impurities in plasma-forming gas on chemical composition of reactive species in far afterglow plasma. This role was studied numerically by example of the additives in high-purity nitrogen contained in high-pressure N 2 tank. It is shown that small oxygen admixtures (at 10 ppm level) to N 2 can be more effective in production of atomic oxygen than ambient air. 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Successful usage of long afterglow plasma jet for distant treatment of 3-D object of a complicated shape with deep slots was demonstrated. This paper focuses on a role of trace impurities in plasma-forming gas on chemical composition of reactive species in far afterglow plasma. This role was studied numerically by example of the additives in high-purity nitrogen contained in high-pressure N 2 tank. It is shown that small oxygen admixtures (at 10 ppm level) to N 2 can be more effective in production of atomic oxygen than ambient air. Besides, trace admixtures of water vapor and hydrocarbons (at parts per million level) lead to full change in a composition of reactive species in far afterglow in comparison with the set of primary species generated by plasma source.</abstract><pub>IEEE</pub><doi>10.1109/TPS.2014.2383618</doi><tpages>8</tpages></addata></record> |
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subjects | Atmospheric pressure plasma jet (APPJ) Discharges (electric) distant plasma treatment far afterglow Fault location Nitrogen Plasma sources reactive plasma species Surface treatment trace admixtures |
title | Long Plasma Jet Generated by DC Discharge in N2 at Atmospheric Pressure: Impact of Trace Admixtures on Composition of Reactive Species in Far Afterglow |
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