Title :
Recent progress of oxide cathode research for microwave tube applications in IECAS
Author :
Wang, Qifu ; Liao, Xianheng ; Luo, Jirun ; Zhao, Qinglan ; Qifu Wang
Author_Institution :
Key Lab. of High Power Microwave Sources & Technol., Chinese Acad. of Sci., Beijing, China
Abstract :
In this paper we mainly describes the research progress in oxide cathode, which includes the gas-liquid synthesis of a sub-micrometer/nanometer carbonates, the preparation of a main single structure Ba5CaAl4O12 under CO2/air protection atmosphere, the realization of a Ni-Re-Ir sponge diffusion layer and the development of a electrolysis-electroplate Ni sponge. According to above research results, we have developed many kinds of oxide cathodes, which have successfully been used in klystrons, Transmitting tube and TWT.
Keywords :
cathodes; electrolysis; electroplating; klystrons; microwave tubes; oxide coated cathodes; travelling wave tubes; IECAS; TWT; air protection atmosphere; electrolysis-electroplate sponge; gas-liquid synthesis; klystrons; microwave tube applications; oxide cathode research; submicrometer-nanometer carbonates; Atmosphere; Cathodes; Current density; Electrochemical processes; Klystrons; Microwave devices; Protection; Reservoirs; Testing; Vacuum technology; Emission current; Ni-Re-Ir sponge; Oxide cathode; Sub-micrometer carbonates;
Conference_Titel :
Vacuum Electronics Conference, 2009. IVEC '09. IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-3500-5
Electronic_ISBN :
978-1-4244-3501-2
DOI :
10.1109/IVELEC.2009.5193413
