Arc Root Motions in an Argon--Hydrogen Direct-Current Plasma Torch at Reduced Pressure |
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Authors: | HUANG He-Ji PAN Wen-Xia WU Cheng-Kang |
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Affiliation: | Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190 |
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Abstract: | Arc root motions in generating dc argon--hydrogen plasma at reduced pressure are optically observed using a high-speed video camera. The time resolved angular position of the arc root attachment point is measured and analysed. The arc root movement is characterized as a chaotic and jumping motion along the circular direction on the anode surface. |
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Keywords: | 52.25.Gj 52.70.-m |
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