Abstract
Water vapor corrosion resistance of titanium aluminate (Al 2 TiO 5 ) was examined at 1500°C in 30 wt% H 2 O flow. The weight loss rate of this substance was 8.6×10 -6 g/cm 2 .h during a 100-h test. No phase change occurred during the corrosion test, but anisotropic corrosion behavior was observed. In the X-ray diffraction patterns of the sample surface following the corrosion test, the relative intensities of 230 and 420 peaks were drastically decreased compared with that of the sample prior to corrosion. Geometrical patterns as like to sand ripples or terraced fields were observed on the sample surface after testing corresponding to the anisotropic water vapor corrosion.
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