Title :
Preparation and characterization of yttrium-doped tungsten powders for magnetron cathode
Author :
Xiang Liu ; Jinshu Wang ; Fan Yang
Author_Institution :
Sch. of Mater. Sci. & Eng., Beijing Univ. of Technol., Beijing, China
Abstract :
Y2O3 doped tungsten powders were prepared by method of spray drying combined with two-step hydrogen reduction to fabricate Y2O3-W cathode. The XRD, SEM results declare that by using this kind method, the yttrium-doped tungsten powders had an average size of 550 nm with homogenous distribution of Y2O3 throughout the tungsten. It is expected that cathode made of this kind of powders can provide good emission.
Keywords :
X-ray diffraction; cathodes; drying; hydrogen; magnetrons; powder technology; scanning electron microscopy; spraying; tungsten; yttrium compounds; H; SEM; XRD; Y2O3-W; homogenous distribution; magnetron cathode; powders; size 550 nm; spray drying; Cathodes; Grain size; Hydrogen; Powders; Tungsten; X-ray scattering; Yttrium; Y2O3; secondary electron emission; spray drying;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2015 IEEE International
Print_ISBN :
978-1-4799-7109-1
DOI :
10.1109/IVEC.2015.7223995
