Multi-Scale Structural Design and Advanced Materials for Thermal Barrier Coatings with High Thermal Insulation: A Review

Thermal barrier coatings (TBCs) are a fundamental technology used in high-temperature applications to protect superalloy substrate components. However, extreme environments present many challenges for TBCs, such as the degradation of their thermal and mechanical properties. Hence, highly insulating, long-life TBCs must be developed meet higher industrial efficiency. This paper reviews main factors influencing insulation performance material, coating thickness, structure. The heat transfer mechanism is summarized, analyzed from perspective Finally, recent advances improving lifetime reviewed terms advanced materials structural design, which will benefit future engineering provide guidance next generation high insulating TBCs.