RTX Corporation
GEOMETRICALLY SEGMENTED ABRADABLE CERAMIC THERMAL BARRIER COATING WITH IMPROVED SPALLATION RESISTANCE

Abstract:

A turbine article includes a substrate with a geometric surface having a multiple of divots recessed into the substrate, and a ceramic topcoat disposed over the geometric surface, the topcoat including at least a first layer having a first hardness and a second layer having a second hardness, the first hardness different than the second hardness.