Oxidation resistant coatings for ultra high temperature transition metals and transition metal alloys
AssigneeWisconsin Alumni Research Foundation
InventorsJohn H. Perepezko, Joon S. Park, Ridwan Sakidja
Life of this patent
Estimating the term…
Abstract
The invention provides oxidation resistant coatings for transition metal substrates and transition metal alloy substrates and method for producing the same. The coatings may be multilayered, multiphase coatings or gradient multiphase coatings. In some embodiments the transition metal alloys may be boron-containing molybdenum silicate-based binary and ternary alloys. The coatings are integrated into the substrates to provide durable coatings that stand up under extreme temperature conditions.
Claims17
A method for producing a multilayered, oxidation-resistant structure comprising:
- depositing silicon dioxide on a substrate comprising molybdenum and boron;
- and
- annealing the silicon dioxide at a temperature and for a time sufficient to form a coating comprising a borosilicate scale on the substrate.
A coated substrate comprising:
- a substrate comprising molybdenum and boron;
- and
- a coating comprising a borosilicate scale on the substrate;
- wherein the concentration of boron in the borosilicate scale is less than about 6 atomic percent.
Dependencies are inferred from the claim text.