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Inert electrode containing metal oxides, copper and noble metal

United States Patent

December 25, 2001
View the Complete Patent at the US Patent & Trademark Office
A cermet composite material is made by treating at an elevated temperature a mixture comprising a compound of iron and a compound of at least one other metal, together with an alloy or mixture of copper and a noble metal. The alloy or mixture preferably comprises particles having an interior portion containing more copper than noble metal and an exterior portion containing more noble metal than copper. The noble metal is preferably silver. The cermet composite material preferably includes alloy phase portions and a ceramic phase portion. At least part of the ceramic phase portion preferably has a spinel structure.
Ray; Siba P. (Murrysville, PA), Woods; Robert W. (New Kensington, PA), Dawless; Robert K. (Monroeville, PA), Hosler; Robert B. (Sarver, PA)
Alcoa Inc. (Pittsburgh, PA)
09/ 621,728
July 24, 2000
This invention was made with Government support under Contract No. DE-FC07-981 D 1366 awarded by the Department of Energy. The Government has certain rights in this invention.