Title :
Advance in dispenser cathodes materials of high emission property
Author :
Shen, Chunying ; Qiu, Tai ; Li, Xiaoyun ; Gao, Xiang
Author_Institution :
Coll. of Mater. Sci. & Eng., Nanjing Univ. of Technol., China
Abstract :
More and more attention has been paid to cathode materials at home and abroad which are the key parts of microwave tubes. The recent advances in porous tungsten matrix with high emission density, impregnant composition and surface properties are presented.
Keywords :
microwave tubes; thermionic cathodes; thermionic emission; tungsten; dispenser cathodes; high emission property; impregnant composition; microwave tubes; porous tungsten matrix; Cathode ray tubes; Current density; Manufacturing; Materials science and technology; Powders; Reservoirs; Shape; Surface emitting lasers; Surface morphology; Tungsten;
Conference_Titel :
Vacuum Electron Sources Conference, 2004. Proceedings. IVESC 2004. The 5th International
Print_ISBN :
0-7803-8437-7
DOI :
10.1109/IVESC.2004.1414194
