Researchers establish a high-throughput multiscale evaluation method for thermal stress in thermal barrier coatings Thermal barrier coatings (TBCs) are widely used in gas turbine engines to obtain elevated working temperatures and improve engine efficiency. The phase transition of the ceramic layer is accompanied by a large volume difference, causing the concentration of thermal stress, eventually leading the TBCs to fall off and fail. Therefore, it is necessary to quantitatively evaluate the magnitude and distribution of thermal stress induced by phase transition in the ceramic layer.
https://phys.org/news/2024-04-....high-throughput-mult