CERAMIC MATRIX COMPOSITE COMPONENT, TURBINE SYSTEM AND FABRICATION PROCESS

摘要

PROBLEM TO BE SOLVED: To provide a turbine excellent in efficiency and performance.SOLUTION: A ceramic matrix composite component, a turbine system and a fabrication process are disclosed. The ceramic matrix composite (CMC) component includes a CMC material, an environmental barrier coating (EBC) on the CMC material, and a hard wear-resistant coating applied over the EBC. The turbine system includes a rotatable CMC component having a hard wear-resistant coating, and a stationary turbine component, the stationary turbine component having an abradable coating arranged to be cut by a silicon carbide material. A fabrication process includes positioning the rotatable CMC a pre-determined distance from the stationary turbine component, and rotating the rotatable CMC component. The hard wear-resistant coating on the rotatable CMC component cuts into the abradable coating on the stationary turbine component.