Influence of a transverse magnetic field on arc root movements in a dc plasma torch: Diamagnetic effect of arc column
- Department of Chemical Engineering, Universite de Sherbrooke, Blvd. de l'Universite, Sherbrooke, Quebec J1K 2R1 (Canada)
The effect of a transverse magnetic field on the anodic arc root movement inside a dc plasma torch has been investigated. The arc voltage fluctuation, which represents the degree of the arc instability, was reduced to 28.6% of the original value and the high frequency components in the voltage signal also decreased in their magnitudes. The inherent arc instability in a dc thermal plasma torch seems to be suppressed by a diamagnetic effect of the arc column. Furthermore, the measured voltage wave forms indicated that the arc root attachment mode would be controllable by a transverse magnetic field.
- OSTI ID:
- 21176053
- Journal Information:
- Applied Physics Letters, Vol. 94, Issue 12; Other Information: DOI: 10.1063/1.3109782; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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