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Operation of a segmented Hall thruster with low-sputtering carbon-velvet electrodes
Journal of Applied Physics
Carbon fiber velvet material provides exceptional sputtering resistance properties exceeding those for graphite and carbon composite materials. A 2 kW Hall thruster with segmented electrodes made of this novel material was operated in the discharge voltage range of 200-700 V. The arcing between the floating velvet electrodes and the plasma was visually observed, especially, during the initial conditioning time, which lasts for an hour. The comparison of voltage-versus current and plumedoi:10.1063/1.2168023 fatcat:kv2ev6fkvndqpgxzk6ly6m5w2m