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Figure 11. Predicted Thermal Barrier Coating Lives on Turbine Blades Are Dependent Upon Aircraft Mission.

Figure 11. Predicted Thermal Barrier Coating Lives on Turbine Blades Are Dependent Upon Aircraft Mission.

Significant improvements in the life of EB/PVD ceramic coatings are considered to be achievable and are the focus of development programs at Garrett. Densification of the outer surface of the zirconia should greatly inhibit the operation of the molten salt film damage mode. Stabilization of the alumina-zirconia interfacial microstructure should also result in significant improvements in high-temperature durability. Improvements in bond coating oxidation resistance will also result in improved TBC life.

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