Advanced Materials for Thermal Barrier Coatings in Turbines

Abstract

Thermal barrier coatings (TBCs) are critical components in enhancing the efficiency and lifespan of turbine engines by protecting metal substrates from extreme temperatures. Recent advancements in materials science have introduced novel ceramic and composite materials for TBCs that offer superior thermal insulation, oxidation resistance, and mechanical robustness. This article reviews the state-of-the-art advanced materials for thermal barrier coatings used in turbines, focusing on their composition, microstructural properties, and performance under harsh operational environments. The study integrates recent research insights with a particular emphasis on emerging nanostructured and multilayered coatings. Additionally, it highlights challenges and future directions in TBC material development aimed at improving turbine efficiency and reducing maintenance costs.