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Brazing techniques for dense high-fired alumina

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
The present invention discloses a refractory bond and method of making the same. The refractory bond is achieved by forming such bond between two dense ceramic parts using a lithium containing material which is reacted with at least the surface of the two dense ceramic parts. More specifically, the bond is formed of a material consisting of lithium oxide-x wherein x is the same material as the dense ceramic parts. Also preferred, but not to be limiting, the bond is in the form of lithium, and the bond together with the dense ceramic parts are in a solid solution. The invention is broadly applicable to all ceramic parts; however, preferred ceramic parts are selected form the group consisting of alumina, zirconia, titania, and magnesia.
Hollenberg, Glenn W. (Kennewick, WA), Bagaasen, Larry A. (West Richland, WA), Xia, Guanguang (Pasco, WA)
Battelle Memorial Institute (Richland WA)
11/ 241,526
September 30, 2005
[0001] The invention was made with Government support under Contract DE-AC0576RLO 1830, awarded by the U.S. Department of Energy. The Government has certain rights in the invention.