Title :
P1–22: Development of the hollow cathode assembly for ion and Hall thruster at BVERI
Author :
Yu, Zhiqiang ; Li, Ji ; Shao, Wensheng
Author_Institution :
Beijing Vacuum Electron. Res. Inst., Beijing, China
Abstract :
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 introduces structure, technology, and performance characteristics of HCAs.
Keywords :
brazing; cathodes; ion engines; BVERI; Hall thruster; advanced brazing technique; assembly heater; barium calcium aluminates; hollow cathode assembly; ion thruster; mechanical structure; thermal structure; tungsten matrix; Assembly; Cathodes; Discharge Current; Hollow Cathode;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2010 IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-7098-3
DOI :
10.1109/IVELEC.2010.5503561
