One of the challenges in manufacturing solid-state electrochemical devices is in joining the ceramic and metallic components such that the resulting joint is rugged, hermetic, and stable under continuous high temperature operation in an oxidizing atmosphere. A well proven method of joining dissimilar materials is by brazing. Unfortunately many of the commercially available ceramic-to-metal braze alloys exhibit oxidation behavior which is unacceptable for potential use in a high temperature electrochemical device. An alternative braze alloy composition designed for oxidation resistance has been developed to join ferritic stainless steel to a variety of electrochemically active ceramic membranes including YSZ, nickel oxide, and mixed conducting perovskite oxides. The results of this study to date will be discussed.
Revised: November 12, 2007 |
Published: May 15, 2003
Citation
Weil K.S., C.A. Coyle, J.Y. Kim, and J.S. Hardy. 2003.The Effect of Composition on the Wetting Behavior and Joint Strength of the Ag-CuO Reactive Air Braze. In Solid State Ionics-2002: Symposium held December 2-5, 2002, Boston, Massachusetts, U.S.A., edited by Philippe Knauth; Hubert A Gasteiger, 756, 551-556. Warrendale, Pennsylvania:Materials Research Society.PNNL-SA-37659.