Self-Healing Ceramic Coating Seals Turbine Cracks at 800 °C (opens in new tab)

Researchers developed a glaze-inspired CoO–Cr2O3 ceramic coating that self-heals thermally induced cracks through cobalt oxide phase segregation at elevated temperatures. The coating mimics protective cobalt-superalloy glaze layers, improving crack tolerance and supporting high-temperature tribological performance for gas turbine engine surfaces.