DocumentCode :
2924386
Title :
Synthesis and characterization of high purity barium calcium aluminates for TWT impregnated cathodes
Author :
Sene, Frank F. ; Santos, Vinícius O. ; Motta, Cláudio C.
Author_Institution :
Nucl. & Energy Res. Inst., Sao Paulo, Brazil
fYear :
2012
fDate :
24-26 April 2012
Firstpage :
165
Lastpage :
166
Abstract :
The synthesis of high purity barium calcium aluminate in oxidant atmosphere, without the pyrolysis step in hydrogen atmosphere, followed by the high energy ball milling to reduce the average particle size, was investigated to improve the impregnation process of the aluminate in porous tungsten matrices by induction heating.
Keywords :
ball milling; barium compounds; calcium compounds; heat treatment; particle size; porous materials; pyrolysis; Ba5CaAl4O12; BaCa2Al8O15; TWT impregnated cathodes; W; high-energy ball milling; high-purity barium calcium aluminates; hydrogen atmosphere; induction heating; oxidant atmosphere; particle size; porous tungsten; pyrolysis; reduction; Atmosphere; Barium; Calcium; Cathodes; Electromagnetic heating; Raw materials; Tungsten; Induction heating; barium calcium aluminate; impregnation; thermionic cathode;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vacuum Electron Sources Conference (IVESC), 2012 IEEE Ninth International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4673-0368-2
Type :
conf
DOI :
10.1109/IVESC.2012.6264172
Filename :
6264172
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2924386
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