Evaluation of Normal and Nanolayer Composite Thermal Barrier Coatings in Fused Vanadate-Sulfate Salts at 1000°C

<table>SEM micrographs of YVO<sub>4</sub> crystals on the surface of YSZ coatings: (a, b) conventional YSZ; (c, d) YSZ as inner layer of YSZ/normal Al<sub>2</sub>O<sub>3</sub> coating; and (e, f) YSZ as inner layer of       YSZ/nano-Al<sub>2</sub>O<sub>3</sub> coating after hot corrosion testing.</table>

Advances in Materials Science and Engineering

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Figure 11

Figure 11: Evaluation of Normal and Nanolayer Composite Thermal Barrier Coatings in Fused Vanadate-Sulfate Salts at 1000°C 