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Heat Treatment of Stand-Alone Metallic Coatings and Characterization of Initial TGO Scale

Select Heat Treatments That Give:

.Complete (X-AI2O3

•Mixture of a-Al203 and 0-A1203.

Select Heat Treatments That Give:

.Complete (X-AI2O3

•Mixture of a-Al203 and 0-A1203.

Evaluation and Characterization of Stand-Alone Metallic Coatings and TBCs as Functions of: •Perfection of Initial TGO •Surface Defects/Features •Surface Roughness •Active Elements (Si, Hf)

Demonstrate Cost-Effective Processing Provides 3X Improvement in Life for TBCs and Stand-Alone Metallic Coatings

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