Research Progress in the Failure Behavior on the Interface of Thermal Barrier Coatings

Abstract

This paper mainly introduces the research progress on interface failure behavior in hightemperature alloy surface thermal barrier coating systems. The degradation failure and structural evolution behavior during high-temperature service were analyzed for the matrix/bonding layer interface, bonding layer/TGO interface, and TGO/ceramic layer interface in thermal barrier coatings. The research focus and direction that affect the interface performance of thermal barrier coatings were proposed.