Advanced Nanoceramic Thermal Barrier Coating Systems

Department of Queen Mary University of London Engineering School, NPU, 710000 Xi’an China

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Abstract

With the continuous development of aerospace propulsion technologies and gas turbines, there always exists high demand for the stability and performance assurance of thermal barrier coatings under extreme high-temperature conditions. Current researches have indicated that traditional thermal barrier coating systems have shown significant issues during long-time service including sintering densification, phase instability, and environmental degradation such as those based on yttria-stabilised zirconia. So nanostructured and nanoceramic thermal barrier coatings have progressively emerged as a crucial research and environment direction for enhancing thermal protection performance because their unique size effects and tunable microstructural characteristics have played a significant influence. This research focuses on the current state of development for nanostructured thermal barrier coatings, providing an objective analysis of the performance and production processes of coatings across different material systems. It particularly aims to explain the relationship between preparation process, microstructure, and performance and it will provide guidance for the further development of material systems and production processes for advanced thermal barrier coatings.