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US 2016/0236994 A1Published application
Patterned abradable coatings and methods for the manufacture thereof
AssigneesROLLS-ROYCE plc, Rolls-Royce North American Technologies Inc.
InventorsDaniel Kent Vetters, Kang N. Lee, Sean E. Landwehr
Life of this patent
Estimating the term…
Abstract
An article includes an abradable ceramic coating with an arrangement of features selected such that the coating has a porosity of about 5% to about 90%.
Claims19
An article comprising an abradable ceramic coating, wherein at least portion of a major surface of the coating comprises an array of depressions, wherein the depressions are arranged such that the coating has a porosity of about 5% to about 90%.
A method, comprising:
- forming an abradable ceramic coating on a CMC component;
- machining an array of features into a surface of the abradable ceramic coating, wherein the features comprise an array of hemispherically-shaped depressions.
Dependencies are inferred from the claim text.