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US 2012/0234681 A1Published application
Functionally graded coatings and claddings for corrosion and high temperature protection
AssigneeModumetal, Inc.
InventorsChristina A. LOMASNEY, John D. Whitaker, Brian Flinn, Rajendra Kumar Bordia, Jesse A. Unger
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Abstract
The present disclosure describes functionally graded coatings and claddings for corrosion and high temperature protection.
Claims22
A method for producing a functionally-graded coating, comprising:
- (a) exposing a mandrel or a substrate to be coated to an electrolyte containing one or more metal ions, and containing one or more ceramic particles, polymer particles, pre-ceramic polymer particles, active fillers, or a combination thereof;
- (b) applying an electric current and changing in time one or more of:
- an amplitude of the electrical current, an amplitude of an electrical potential, an electrolyte temperature, a relative concentration of metal ions or particles in the electrolyte, or an electrolyte agitation, to change a ratio of an electrodeposited species;
- and
- (c) promoting growth of the functionally-graded coating until a desired thickness of the coating is achieved, the electrodeposited species being varied throughout the desired thickness of the coating.
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An electrodeposited corrosion-resistant functionally-graded coating, comprising:
- an interior first region of metal;
- and
- an exterior second region of polymer, pre-ceramic polymer, or ceramic,
- wherein a non-discrete region is disposed between the first region and the second region, the non-discrete region being a combination of the first region and the second region.
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Dependencies are inferred from the claim text.