ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,321, issued on Jan. 20, was assigned to RTX Corp. (Farmington, Conn.).
"Segmented ceramic coating interlayer" was invented by Christopher W. Strock (Kennebunk, Maine) and Paul M. Lutjen (Kennebunkport, Maine).
According to the abstract* released by the U.S. Patent & Trademark Office: "A turbine article includes a substrate with a geometric surface feature having a plurality of recesses recessed into the substrate. A ceramic topcoat is disposed over the geometric surface feature. The topcoat includes portions that are separated by faults extending through the topcoat from the geometric surface feature so the topcoat is segmented. A ceramic interlayer is disposed between the topcoa...