Research Status in Fabrication and Failure of Thermal Barrier Coatings

Thermal barrier coatings are widely used to protect the components in aircraft and industrial gas-turbine engines against high temperature damage.The energy efficiency and lifetime of these components are mainly dominated by the failure resistance of thermal barrier coatings in the high temperature atmosphere.In this paper,the development and research status of thermal barrier coatings are reviewed.Especially,the main fabricating methods and the microstructure feature of the coatings,as well as the factors resulting in the failure of thermal barrier coatings and its failure mechanisms,are summarized in detail.