Thermal barrier coating and article comprising same
AssigneeUniversity of Connecticut
InventorsMaurice Gell, Eric Jordan, Jeffrey Roth
Life of this patent
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Abstract
A thermal barrier coating that includes a YAG-based ceramic is prepared by a solution precursor plasma spray method that includes injecting a precursor solution into a thermal jet, evaporating solvent from the precursor solution droplets, and pyrolyzing the resulting solid to form a YAG-based ceramic that is melted and deposited on a substrate. The thermal barrier coating can include through-coating-thickness cracks that improve the strain tolerance of the coating.
Claims18
A thermal barrier coating having a thickness of about 50 to about 5,000 micrometers and comprising through-coating-thickness microcracks;
- wherein the thermal barrier coating comprises a YAG-based ceramic.
A thermal barrier coating comprising a YAG-based ceramic and having two or more columns of the YAG-based ceramic that are mechanically separated from each other by through thickness microstructural features.
Dependencies are inferred from the claim text.