Thermal barrier coatings and method of application

摘要

A coated part is exposed to a gas flow. The gas flow has a characteristic gas flow direction distribution over a surface of the coated part. The coated part has a substrate (22) having a substrate surface (26) and a coating (24) over the substrate surface. The coating comprises (24) at least one coating layer. A first such layer (34) is columnar and has a column boundary direction (502) distribution. The column boundary direction distribution is selected for partial local alignment with the gas flow direction (510) distribution.