DocumentCode
3220289
Title
High current density Scandate doped pressed cathode fabrication
Author
Cui, Y.T. ; Wang, J.S. ; Liu, Wenxin ; Wang, Y.M.
Author_Institution
Coll. of Mater. Sci. & Eng., Beijing Univ. of Technol., Chaoyang, China
fYear
2010
fDate
14-16 Oct. 2010
Firstpage
168
Lastpage
169
Abstract
In this paper, scandate doped pressed (SDP) cathodes were prepared by a new method of spray drying combined with two-step hydrogen reduction, instead of traditional mechanical mixing of scandium oxide and barium-calcium aluminates with tungsten. The microstructure, element distribution, and emission properties of the cathodes have been characterized by scanning electron microscope, energy dispersive spectrometer, and an emission test system, respectively.
Keywords
cathodes; current density; doping; drying; electron emission; scandium compounds; scanning electron microscopy; spraying; SDP cathode; Sc2O3; current density; element distribution; energy dispersive spectrometer; microstructure; scandate doped pressed cathode; scanning electron microscopy; spray drying; two step hydrogen reduction;
fLanguage
English
Publisher
ieee
Conference_Titel
Vacuum Electron Sources Conference and Nanocarbon (IVESC), 2010 8th International
Conference_Location
Nanjing
Print_ISBN
978-1-4244-6645-0
Type
conf
DOI
10.1109/IVESC.2010.5644403
Filename
5644403
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