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Protective coatings for metal alloys and methods incorporating the same

United States Patent

June 9, 2015
View the Complete Patent at the US Patent & Trademark Office
An electrochemical device having one or more solid oxide fuel cells (SOFCs), each of the SOFCs including a cathode, an anode, and an electrolyte layer positioned between the cathode and anode; and at least one additional component comprising a metallic substrate having an electronically conductive, chromium-free perovskite coating deposited directly thereon. The perovskite coating has the formula ABO.sub.3, wherein A is a lanthanide element or Y, and B is a mixture of two or more transition elements, with the A site undoped by any alkaline earth element, and the perovskite coating exhibits limited or no ionic transport of oxygen.
Seabaugh; Matthew M. (Columbus, OH), Ibanez; Sergio (Columbus, OH), Swartz; Scott L. (Columbus, OH)
NextTech Materials, Ltd. (Lewis Center, OH)
13/ 447,155
April 13, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT The present invention was partially made with Government support under grant DE-PS02-08ER08-34 awarded by the United States Department of Energy. The Government has certain rights in the invention.