High-Temperature Oxidation of Ti3Al0.7Si0.3C2 Carbide at 1100 and 1200°C in Air
The oxidation of Ti3Al0.7Si0.3C2 carbide at 1100 and 1200°C in air for up to 50 h resulted in the formation of rutile-TiO2, α-Al2O3 and SiO2. Depending on the location of the carbide, either thin, dense, single layered oxide scales or thick, porous, bi-layered oxide scales formed. The single layered scales consisted primarily of protective Al2O3. The bi-layered scale consisted primarily of an outer (TiO2+Al2O3)-mixed oxides, and an inner TiO2-rich, (Al2O3+SiO2)-containing oxides. Since the testing temperatures were high, the oxidation rates varied much depending on the location of the carbide.
Anil K. Bhatnagar
D. B. Lee, "High-Temperature Oxidation of Ti3Al0.7Si0.3C2 Carbide at 1100 and 1200°C in Air", Applied Mechanics and Materials, Vol. 775, pp. 176-179, 2015