Interface‐Stabilized Glass‐Ceramic/Silver Composite Coatings Enable Predictable Multiband Infrared Stealth Under High‐Temperature Marine Environment

ABSTRACT Infrared (IR) stealth is crucial for improving the survivability of equipment. The growing demand for service in marine environments poses new challenges to the composition and structural design of existing IR stealth coatings. This study first investigates the effects of NaCl/water vapor corrosion on the IR stealth performance of GH3536 and a single Ag coating at 700°C. Then, we develop an interface‐strengthened glass‐ceramic/Ag composite coating in which a glass‐ceramic interlayer acts as a chemical barrier that prevents corrosive species from reaching the alloy and increases coating adhesion by about 129%. The composite coating delivers ultralow emissivity in mid‐wave IR ( = 0.07) and long‐wave IR ( = 0.09), outperforming a single‐layer Ag film and maintaining structural integrity after accelerated corrosion exposure at 700°C. Enhanced system stability further enables quantitative predictability. The established corrosion‐radiation model forecasts apparent temperature difference Δ T of 414°C (MWIR) and 386°C (LWIR) against a 700°C background after corrosion. These results provide a pathway to durable multiband IR stealth and predictability in marine environments.