India-stabilized zirconia coating for composites
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorRobert L. Jones
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Abstract
A coating of india-stabilized zirconia protects a self-supporting substrate from high temperatures, as well as vanadate and sulfate corrosion. In one method of making such a protected substrate, a coating of india-stabilized zirconia is applied to the substrate. The substrate can be a metal or ceramic surface of a gas turbine or other type of engine.
Claims10
A combustion engine having improved resistance to corrosion from sodium vanadates and sodium sulfates, said engine comprising metal surfaces and including a coating of tetragonal zirconia, stabilized with about 2.5 and 20.0 mole percent india, on said surfaces.
A method for protecting the surface of a combustion engine from corrosion by sodium vanadates and sodium sulfates comprising applying a coating of tetragonal zirconia, stabilized with about 2.5 and 20.0 mole percent india, to that surface of the engine.
Dependencies are inferred from the claim text.