Title :
Refractory Glass and Glass Ceramic Tube Seals
Author :
Ballard, Clifford P. ; Bland, Ray D. ; Stewart, Donn L.
Author_Institution :
Sandia National Laboratories, Albuquerque, NM 87185.
fDate :
5/1/1982 12:00:00 AM
Abstract :
Complex vacuum-tube envelopes are required to house and support integrated thermionic circuits (ITC) during long-term operation at elevated temperatures. Li2O-ZnO-SiO2 glass ceramic and CaO-A12O3 glass seals were investigated because they are refractory, moldable, have relatively high thermal expansion coefficients, and bond directly to a variety of metals.
Keywords :
Anodes; Cathodes; Ceramics; Circuits; Glass; Platinum; Seals; Substrates; Temperature; Thermal expansion;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.1982.356656
