Alternative ceramic potting materials for dispenser cathodes

Author

Swartzentruber, Phillip ; Collier, Michael ; DeWees, Rachel ; Epperson, Whitney ; Poole, Christina ; Rupp, Ben ; Bowling, David ; Fadde, Elizabeth ; Floyd, Adam ; Rottmann, Paul ; Wilson, Rachel ; Balk, T. John ; Roberts, Scott ; Tarter, Jim ; Effgen, Mic

Author_Institution

Dept. of Chem. & Mater. Eng., Univ. of Kentucky, Lexington, KY, USA

fYear

2012

fDate

24-26 April 2012

Firstpage

483

Lastpage

484

Abstract

Thermal expansion and cracking of the ceramic potting in dispenser cathodes can lead to failed cathodes. Finding alternative potting materials or optimizing current potting materials with additives may be an avenue to improve the quality of dispenser cathodes. This paper is the result of an undergraduate student project performed by the University of Kentucky with the sponsorship of Semicon Associates of Lexington, KY.

Keywords

additives; cathodes; ceramics; cracks; thermal expansion; additives; alternative ceramic potting materials; current potting materials; dispenser cathodes; thermal expansion; undergraduate student project; Aluminum oxide; Cathodes; Ceramics; Conductivity; Standards; Thermal conductivity; aluminum nitride; cathode; ceramic; dispenser; potting;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference (IVEC), 2012 IEEE Thirteenth International

Conference_Location

Monterey, CA

Print_ISBN

978-1-4673-0188-6

Electronic_ISBN

978-1-4673-0187-9

Type

conf

DOI

10.1109/IVEC.2012.6262242

Filename

6262242