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A new approach for the electromagnetic control and propulsion of a current carrying electric arc plasma ring is described. The essence of the approach is to form and manipulate the arc plasma outside rather than inside a magnetic field producing coil so that pulsed plasma thrusts can be produced in a choice of different directions. The interaction of the electric arc, formed in atmospheric pressure...
A gas dynamical model is proposed for erosion jets from arc electrodes. The calculations of this model are in agreement with experiments on pulsed arcs made by Hermoch in the 1950s.
A chromatic detection system was designed and tested for monitoring the optical emission from a d.c. arc plasma jet with and without powder particles heated in the plasma. The chromaticity parameters measured are correlated with the arc current, gas flow rate and substrate position.
Arc discharges between evaporating electrodes are described in terms of mechanisms such as T-F electron emission, thermal evaporation and equilibrium ionisation. If the plasma region is of small (micrometer) dimensions and strongly coupled with the walls (electrodes), an approach based on the balance of electric charge, particles, momentum and energy can be used. A set of equations is written down...
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