A computational Dieke design map for near-infrared optical absorption in transition metal-substituted yttria-stabilized zirconia (opens in new tab)

Thermal barrier coatings (TBCs) are widely used to protect metallic components in turbine engines operating at high temperatures. Traditionally, their performance has been optimized by minimizing thermal conductivity and maintaining phase stability. At very high temperatures, however, radiative heat transfer becomes a significant contributor to total heat flux, especially within the near-infrared (NIR) spectral range, and must be considered. Most conventional TBC materials are wide band gap i...