Title :
P1–33: Thermal properties of alumina cathode heater potting materials
Author :
Wolverton, Lindsey ; Tarter, James O. ; Eitel, Richard E ; Weisenberger, Matthew ; Dowden, Carissa
Author_Institution :
Semicon Assoc., Lexington, KY, USA
Abstract :
Dispenser cathodes must operate at specific temperatures while applying specific heater powers. Designs to accomplish this have traditionally been empirically derived. In order to apply more systematic FEA methods better knowledge of the unique materials used in the heater package is needed. This investigation was launched to evaluate the thermal properties of the alumina materials used to encapsulate heaters.
Keywords :
alumina; finite element analysis; thermionic cathodes; FEA method; alumina cathode heater potting material; dispenser cathodes; heater package; thermal property; Cathodes; Chemical engineering; Composite materials; Conducting materials; Heat engines; Optical materials; Power engineering and energy; Temperature distribution; Thermal conductivity; Thermal engineering; Dispenser cathode; alumina potting; heater; thermal conductivity; thermal diffusivity;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2010 IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-7098-3
DOI :
10.1109/IVELEC.2010.5503552
