Turbine Duty Rises Faster Than Substrate Capability
Gas turbine firing temperatures have risen beyond what nickel superalloys tolerate unaided, and hydrogen-capable combustion raises hot section duty further again because the flame burns hotter and wetter. Thermal barrier coatings grow at 10.5% against 7.0% for the market as a direct result. Coating is doing work that metallurgy cannot, which makes it a design requirement rather than a protective afterthought and changes who specifies it entirely. Service life around 24,000 hours creates a recoating aftermarket that new engine deliveries never would. Qualification into a programme is permanent. Very few coaters hold many of them.
Market Impact: Barriers run about 24,000 hours








