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Langmuir probe diagnostics of an atmospheric pressure, vortex–stabilized nitrogen plasma jet
(2012-09-19)
Langmuir probe measurements in an atmospheric pressure direct current (dc) plasma jet are
reported. Sweeping probes were used. The experiment was carried out using a dc non–transferred
arc torch with a rod–type cathode ...
On the dynamics of cutting arc plasmas: the role of the power supply ripple
(ADVANCED ELECTROMAGNETICS, 2012-08)
The power sources used in cutting arc torches are usually poorly stabilized and have a large ripple factor. The strong oscillatory components in the voltage and arc current produce in turn, large fluctuations in the plasma ...
On the dynamic behavior of the anode–arc–root at the nozzle surface in a non-transferred plasma torch
(2012)
The dynamic behavior of the anode–arc–root at the nozzle surface of a plasma torch
was experimentally investigated in this work. A gas (N2) vortex–stabilized non–transferred arc
torch with a thoriated tungsten rod (2wt ...
Numerical modeling of the gas breakdown development in the space–charge layer inside the nozzle of a transferred arc torch
(2012)
Double–arcing is a phenomenon that occurs when a transferred arc, flowing inside an
electrically insulated nozzle, breaks into two separate arcs: one that connects the cathode with
the nozzle, and another that connects ...