Processing, microstructures and properties of thermal barrier coatings by electron beam physical vapor deposition (EB–PVD)

Thermal barrier coatings (TBCs) produced by electron beam physical vapor deposition (EB–PVD) have exhibited some advantages over those produced by plasma spraying, being the most promising protective coatings for hot components used in rotation condition. In this work, the physical principles of EB–PVD technology are described. Processing, microstructures and properties of EB–PVD TBCs are reviewed. The failure mechanisms of EB–PVD TBCs subjected to thermal cyclic loads are also discussed.