DocumentCode :
182207
Title :
Initial testing results of scandia-doped tungsten dispenser cathodes
Author :
Paff, John ; Rudd, Greg ; Brox, Rob ; Vancil, Bernard
Author_Institution :
Spectra-Mat, Inc., Watsonville, CA, USA
fYear :
2014
fDate :
22-24 April 2014
Firstpage :
59
Lastpage :
60
Abstract :
Spectra-Mat, Inc has developed a kilogram-scalable process for manufacturing scandia-doped tungsten powder for tungsten matrices for high current density cathodes. To validate the powder, diode testing has been performed, with multiple cathodes from a single lot and multiple powder lots. Performance results of that testing as well as initial life test data will be presented. Cathodes are consistently providing 5 A/cm2 at or below 860°C.
Keywords :
cathodes; current density; scandium; tungsten; Sc; Spectra-Mat, Inc; W; diode testing; high current density cathodes; kilogram-scalable process; scandia-doped tungsten dispenser cathodes; scandia-doped tungsten powder; tungsten matrices; Cathodes; Current density; Performance evaluation; Powders; Roads; Testing; Tungsten; Cathode; high current density; scandia; scandia doped tungsten;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vacuum Electronics Conference, IEEE International
Conference_Location :
Monterey, CA
Type :
conf
DOI :
10.1109/IVEC.2014.6857489
Filename :
6857489
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=182207
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