Oxidation-induced strength behavior of Ti{sub}3SiC{sub}2

摘要

Oxidation behavior and subsequent mechanical properties of Ti{sub}3SiC{sub}2 were studied. The oxide scale has significant effect on strength and hardness, which is mainly attributed due to the mismatch of coefficient of thermal expansion (CTE) of substrate and oxide phases. The improved flexural strength (～650MPa) could be noticed at 1000℃; however, at elevated temperature the ductility of Ti{sub}3SiC{sub}2 was predominant and reduced the strength.