Mixed ionically/electrically conducting oxides such as lanthanum calcium manganate are currently being investigated for use as electrodes in a number of high temperature devices, including solid oxide fuel cells. Traditionally, glass seals have been employed as a means of hermetically joining the ceramic components that lie at the heart of these devices to the heat resistant metal frame that gives the device its structural integrity. The present paper outlines an alternative brazing technique for joining these dissimilar materials and discusses recent findings regarding the wettability of the braze on the two joining surfaces, as well as the strength of the resulting joint.
Revised: October 25, 2007 |
Published: September 5, 2003
Citation
Weil K.S., and J.S. Hardy. 2003.Brazing a Mixed Ionic/Electronic Conductor to an Oxidation Resistant Metal. In Advances in Joining of Ceramics: Proceedings of the Joining of Ceramics Symposium: Held at the 104th Annual Meeting of the American Ceramic Society, April 28-May 1, 2002, in St. Louis, Missouri., edited by C A Lewinsohn, M Singh, R Loehman, 138, 185-200. Westerville, Ohio:American Ceramic Society. PNWD-SA-5672.