[G] High Temperature Oxidation and Corrosion (1)

[12] Grain boundary oxygen diffusion in polycrystalline Al₂O₃ determined by oxidation rate of AlN/Al₂O₃ composites

*Phanuwat Khlaisongkhram¹, Yen-Ling Kuo¹, Makoto Nanko¹ (1. Nagaoka University of Technology)

Keywords:Al₂O₃、Grain boundary diffusion、High-temperature oxidation

The diffusivity of oxygen through the grain boundary of alumina in 10 vol% AlN/Al2O3 composites is determined by our mathematic model using the value from the high-temperature oxidation experiment.