ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,404,218, issued on Sept. 2, was assigned to Rolls-Royce Corp. (Indianapolis).
"Article with surface structures for CMAS resistance" was invented by Taylor K. Blair (Indianapolis), Ted J. Freeman (Indianapolis) and Aaron Sippel (Indianapolis).
According to the abstract* released by the U.S. Patent & Trademark Office: "In some examples, article used as a component for a turbine engine that operates in a high temperature environment. The article may include: a ceramic or ceramic matrix composite (CMC) substrate; and a coating on the ceramic or the CMC substrate, wherein the coating defines an outer surface of the article. The coating includes a plurality of surface features defining cha...