Abstract

Pure gold brazing of 96% alumina ceramic with CP titanium using electrical resistance heating has been analyzed. Wetting studies of gold with different refractory metals and titanium were performed. HTCC alumina ceramic was metalized with a 500 nm Nb layer yielding hermetic joints having leak rate of the order of 1.6 × 10−8 atm-cc/ sec. Adhesion strength was tested using nanoscratch testing using a nanoindentor on 100 nm Nb on polished alumina.

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