The thermal structural components of aerospace vehicles using carbon fiber reinforced carbon matrix (C/C) composites as raw materials

are facing harsh service conditions and require oxidation resistant ceramic coatings on their surfaces to resist the erosion in thermo–mechanical–oxygenic coupling environments. However

the brittleness of ceramic coatings make them highly susceptible to damage under external forces

posing a serious threat to the service safety of thermal structural components. Driven by the repair needs of oxidation resistant ceramic coatings and based on the damage size of coatings

the self-healing technology for micro damage and the remanufacturing technology for macro damage are introduced. The implementation methods

research status

repair effects

advantages disadvantages and application scenarios of the two technologies are elaborated. Finally

the future development directions of the self-healing and remanufacturing of oxidation resistant ceramic coatings are discussed.