Abstract
Water vapor corrosion behavior of rutile TiO 2 was examined at 1773 K in 30 mass% H 2 O environment. The corrosion rate for this sample was 2.2 × 10 - 4 kg.m - 2 .h under this experimental conditions. Anisotropic corrosion behavior was recognized in the planes that are parallel to c-axis Many rectangular shaped etch-pits were generated at the grain surfaces. The corrosion proceeded from the side wall of the etch-pits and then, terrace fields were grown on the grain surface. Ridge-shaped microstructure was observed on the side wall of the terrace owing to the anisotropic corrosion.
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