Title :
P1–30: Fabrication of Y2O3-Mo secondary electron emitters by air Plasma Spray method
Author :
Liu, Wei ; Wang, Jinshu ; Ren, Zhiyuan ; Yang, Fan ; Zhou, Meiling ; Zuo, Tieyong
Author_Institution :
Key Lab. of Adv. Functional Mater., Beijing Univ. of Technol., Beijing, China
Abstract :
Rare earth oxide (REO) doped Molybdenum metal ceramic emitters were successfully prepared by the air Plasma Spray (APS) method. Microstructure and secondary electron emission (SEE) performance were investigated. The relative uniform mixing of rare earth oxide and molybdenum have been observed. The maximum secondary electron yield is 3.3 after activation at 1100b(Mo brightness temperature) in vacuum.
Keywords :
ceramics; molybdenum; plasma arc spraying; secondary electron emission; yttrium compounds; Mo:Y2O3; air plasma spray method; maximum secondary electron yield; metal ceramic emitters; microstructure; secondary electron emitters; uniform mixing; Cathodes; Electron emission; Fabrication; Microstructure; Nuclear and plasma sciences; Plasma applications; Plasma materials processing; Powders; Temperature; Thermal spraying; Air Plasma Spray; Molybdenum; Rare earth oxide; Secondary electron emission;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2010 IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-7098-3
DOI :
10.1109/IVELEC.2010.5503553
