Performing organization report no e 8700 9. Thermal barrier coatings tbcs are advanced materials systems usually applied to metallic surfaces operating at elevated temperatures such as gas turbine or aero engine parts as a form of exhaust heat management these 100 μm to 2 mm thick coatings of thermally insulating materials serve to insulate components from large and prolonged heat loads and can sustain an appreciable temperature.
Robert morse 8.
Ceramic coating air cooled engine. The express purpose of the coating is to act as an insulation barrier between the parts and the hot gas. Clure experimental investigation of air cooled turbine bladesin a turbojet engine xiii. Used to transfer heat away from a substrate resulting in increased efficiencies performance and longevity of the coated part.
Performance evaluation of several protective coatings applied to turbine blades of nonstrategic steels naca research memo e53e18 1953. Jacobs stephan stecura and c. Zirconia thanks to its low thermal conductivity and its thermal expansion coefficient which is compatible with that of metals is the most studied material.
Performing organization code 7. Report date september 1976 6. Several ceramic materials such as zirconium oxide chromium oxide aluminum oxide and mullite have been investigated as in cylinder engine coatings.
Barrier ceramic coatings on air cooled turbine blades in cyclic jet engine operation 5. Levy ceramic coating for insulation met. Airfoil metal temperatures were significantly reduced both locally and on the average by use of the the coating.
Cerakote transfer black is a ceramic bonded thermal conductive coating that is formulated to provide an increase in thermal transfer of 35 40 from a metal substrate to a free flowing air. The metal temperatures of air cooled turbine vanes both uncoated and coated with the nasa thermal barrier system were studied experimentally. Current and advanced gas turbine engine conditions were simulated at reduced temperatures and pressures.
Performing organization name and address lewis research center. Ceramic thermal barrier coatings are used extensively in jet engine and gas turbine hot gas paths where temperatures are extreme.