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US 2022/0348513 A1Published application
Contact joule heating for sintering high temperature coatings
AssigneeHoneywell International Inc.
InventorsMehrad Mehr, Bahram Jadidian
Life of this patent
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Abstract
A method for forming a high temperature coating includes forming a pre-sintered ceramic coating on a ceramic composite substrate. The pre-sintered ceramic coating includes a plurality of ceramic particles. The method further includes sintering at least a portion of the pre-sintered ceramic coating by heating the portion of the pre-sintered ceramic coating to a sintering temperature of the plurality of ceramic particles using joule heating. The sintering temperature is greater than about 1000 degrees Celsius (° C.).
Claims20
A method, comprising:
- forming a pre-sintered ceramic coating on a ceramic composite substrate, wherein the pre-sintered ceramic coating comprises a plurality of ceramic particles;
- and
- sintering at least a portion of the pre-sintered ceramic coating by heating the portion of the pre-sintered ceramic coating to a sintering temperature of the plurality of ceramic particles using joule heating, wherein the sintering temperature is greater than about 1000 degrees Celsius (° C.).
A system for forming a high temperature ceramic coating, comprising:
- an enclosed chamber configured to:
- house an article that includes a pre-sintered ceramic coating on a ceramic composite substrate, wherein the pre-sintered ceramic coating comprises a plurality of ceramic particles;
- and
- maintain an inert or vacuum atmosphere in the enclosed chamber;
- and
- one or more contact elements configured to:
- contact a portion of the article;
- and
- generate joule heat to heat a portion of the pre-sintered ceramic coating to a sintering temperature of the plurality of ceramic particles to sinter the portion of the pre-sintered ceramic coating, wherein the sintering temperature is greater than about 1000° C.
6 more elements
Dependencies are inferred from the claim text.