Ceramic coating for corrosion resistance of nuclear fuel cladding
AssigneeThe Penn State Research Foundation
InventorsDouglas E. WOLFE, Arthur M. T. MOTTA, Timothy J. EDEN
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Abstract
Coating used for radioactive fuel or a structural component in radioactive fuel reactors, e.g., nuclear fuel cladding alloys, can include a ternary monolithic coating or multiple layers of one or more layers of TiAlN TiZrN, TiCrN, TiNbN and/or CrN, ZrN, NbN, TiN, TaN, HfN. TiHfN, TaHfN, TaNbN, or mixed combinations and/or CrN, ZrN, NbN, TiN, TaN, Si3N4, and/or HfN. In addition, one or more layers can be comprised of a nitride, oxide, or carbide or mixed combination (i.e., carbonides, oxynitrides, oxycarbides, etc.) from Ti, Al, Zr, Cr, Si, Nb, Hf, or mixed combination (i.e., TiAlC1-xNx). The multilayer coating can be doped with a dopant.
Claims20
A coating system on a substrate used for radioactive fuel or a structural component in a radioactive fuel reactor, the coating system comprising
- a multilayer coating on the substrate including (i) one or more layers including a ternary metal compound, and (ii) a top coat layer that does not include aluminum.
Dependencies are inferred from the claim text.