Emission Intensity Enhancement of DC Arc Plasma Induced by External Oscillating Magnetic Field

2007 ◽  
Vol 47 (10) ◽  
pp. 670-676 ◽  
Author(s):  
M. M. Stoiljković ◽  
M. Pavlović ◽  
J. Savović ◽  
M. Kuzmanović
Keyword(s):  
Magnetic Field ◽  
Emission Intensity ◽  
Arc Plasma ◽  
Intensity Enhancement ◽  
Oscillating Magnetic Field ◽  
Dc Arc

scholarly journals Magnetohydrodynamic Simulation of DC Arc Plasma under AC Magnetic Field

2005 ◽  
Vol 45 (7) ◽  
pp. 947-953 ◽  
Author(s):  
Takehiko TOH ◽  
Jun TANAKA ◽  
Yasuo MARUKI ◽  
Takeo YAMAMOTO ◽  
Koichi TAKEDA
Keyword(s):  
Magnetic Field ◽  
Arc Plasma ◽  
Ac Magnetic Field ◽  
Magnetohydrodynamic Simulation ◽  
Dc Arc

Structure and Dynamics of a Magnetron DC Arc Plasma

1990 ◽  
Vol 44 (1) ◽  
pp. 76-83 ◽  
Author(s):  
David Slinkman ◽  
Richard Sacks
Keyword(s):  
Magnetic Field ◽  
Plasma Generator ◽  
Rotational Frequency ◽  
Arc Plasma ◽  
Current Channel ◽  
Graphite Cylinder ◽  
Thoriated Tungsten ◽  
Arc Current ◽  
Dc Arc ◽  
Concentric Electrode

A direct-current arc plasma generator is described which uses a concentric electrode configuration and a magnetic field parallel to the electrode axis to obtain rotation of the arc current channel at a frequency in the 1–3 kHz range. The anode is a hollow graphite cylinder, and the cathode is a thoriated tungsten wire. A magnetic field of several hundred gauss is obtained from one or more ring-shaped permanent ceramic magnets. For a 5-mm anode diameter, the plasma is diffuse, and the current channel has the form of a thin radial sheet which undergoes relatively small periodic perturbations at the rotational frequency. Design features, performance data, and plasma structure are considered.

MOTION OF ANODE ATTACHMENT AND FLUCTUATIONS OF PLASMA JET IN DC ARC PLASMA TORCH

1997 ◽  
Vol 1 (2) ◽  
pp. 167-178 ◽  
Author(s):  
Milan Hrabovsky ◽  
M. Konrad ◽  
Vladimir Kopecky ◽  
J. Hlina ◽  
J. Benes ◽  
...  
Keyword(s):  
Plasma Torch ◽  
Plasma Jet ◽  
Arc Plasma ◽  
Arc Plasma Torch ◽  
Dc Arc ◽  
Dc Arc Plasma Torch

Integrated purification of Gd and preparation of Gd2O3 nanoparticles by DC arc plasma*

2021 ◽  
Author(s):  
Zhenggang Tang ◽  
Minjie Hou ◽  
Xin He ◽  
Kai Ye ◽  
Da Zhang ◽  
...  
Keyword(s):  
Arc Plasma ◽  
Gd2o3 Nanoparticles ◽  
Dc Arc

An Investigation of Close-Electrode Intensification in a dc Arc in a Magnetic Field

1970 ◽  
Vol 24 (1) ◽  
pp. 95-98 ◽  
Author(s):  
A. Petrakiev ◽  
R. Milanova
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Cathode Region ◽  
Spectral Lines ◽  
Anode Region ◽  
Temperature Range ◽  
Dc Arc

An investigation of the distribution of the intensity of spectral lines in the gap length of a copper dc arc of 7A, burning both with and without nonhomogenous magnetic field, will be described in this paper. The close-electrode intensification effect of spectral lines has been observed and its variation with the time of preliminary burning and the gap length has been investigated. It has been established that close-electrode intensification appears only with the ionic lines. An increase of the intensity of some spectral lines and certain variations in their distribution have been observed when the arc is burning in a magnetic field. The temperature range has been studied in its relationship to the gap length. The temperature around the cathode region is approximately 6500 K and that around the anode region is about 6000 K. The superposition of an external magnetic field contributes to an increase of the temperature of about 400 K. Some possibilities for the application of these effects in the case of spectral analytical determinations have been suggested.

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