Voltage–current characteristics of high-current glow discharges

Abstract

The voltage–current characteristics of glow discharges in gas mixture (N2:O2=8:2) at a pressure of 10 Torr were obtained with the discharge current up to 150 A. Parallel-plane electrodes with a diameter of 10.7 cm and a discharge chamber with co-axial geometry were used to produce glow discharge with high current. The glow discharge voltage was almost constant until the whole surface of the cathode was covered with glow, i.e., until the discharge current became 3.7 A in our experimental condition (a normal glow discharge mode). The voltage, however, increased with the current when the glow covered over the cathode (an abnormal glow discharge mode). The electron density in positive column of the high-current glow discharge was obtained to be 3×1011 cm−3 from Langmuir probe measurements.

Influence of the energy dissipation rate in the discharge of a plasma synthetic jet actuator

“…Takaki [29] observed the same discharge voltage (400V), and the current varied between 1 and a few milliamperes.…”

“…As seen in [28][29][30], the glow discharge has the same electric characteristics, a constant voltage, and a variable current. Takaki [29] observed the same discharge voltage (400V), and the current varied between 1 and a few milliamperes.…”

Rapid synthesis of TiC–Fe3C composite by electric discharge assisted mechanical milling of ilmenite (FeTiO3) with graphite

“…Moreover, the use of EDAMM has reduced the reaction time to just 5 min. EDAMM combines the benefits of mechanical milling [8], with high-energy ion bombardment [8][9][10]. During EDAMM, powders are subjected to a localised and intense reaction area characterised by the formation of an electrical discharge and/or plasma [6].…”

Rapid synthesis of Bi and Sb sulfides using electric discharge assisted mechanical milling

“…EDAMM combines the benefits of producing fine, highly reactive particles via mechanical milling [20], with the interaction between accelerated ions and powder particle surfaces resulting from the use of electric discharges [20][21][22]. During EDAMM, powders are subjected to a localised and intense reaction area characterised by the formation of an electrical discharge and/or plasma [15].…”