At temperatures of ~1200☌, CMAS melts and can penetrate EBC materials, causing premature coating failure. Strategies for mitigating CMAS attack are being developed in the Opila lab.ĬMAS originates as siliceous debris such as sand or volcanic ash, which can be ingested into aircraft turbine engines during flight. Calcium Magnesium Alumino-Silicate (CMAS)Ĭalcium magnesium alumino-silicate (CMAS) attack is a pressing issue in the development of environmental barrier coatings (EBCs) for ceramic matrix composites (CMCs).
