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This paper will present the more detail on the life experiment and discuss the M-type cathode life characteristic and operating fundamentals. The authors also give some advices for extending cathode life.
The new hollow cathode assemblies (HCAs) based on a tungsten matrix impregnated with barium calcium aluminates have been developed at BVERI. The assembly heater and advanced brazing technique are adopted to improve the compatibility of thermal and mechanical structure, as well as reliability and lifetime. The HCA are designed to deliver currents up to 5A for ion thruster or Hall thruster. This paper...
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