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Keywords: thermal barrier coating
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Proceedings Papers

Proc. ASME. GT2023, Volume 2: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels, V002T02A005, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101962
... Abstract Thermal barrier coatings (TBCs) are widely used to protect hot components in gas turbine engines. With higher turbine inlet temperature, the thermal radiative transfer becomes important in the overall heat transfer in the coating layer. The microstructure, including pore size...
Proceedings Papers

Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T02A005, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81964
... Abstract The majority of lifetime models associates the failure of thermal barrier coatings to an oxidation of the bond coat. A thickening of the thermally grown oxide leads to a conversion of stresses at the undulated ceramic-metal interface, supporting the propagation of existing micro cracks...
Proceedings Papers

Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T02A003, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80853
... Abstract The yttria-stabilized zirconia (YSZ) top coat provides a thermal resistance function in the thermal barrier coatings used in gas turbines and Diesel engines. Besides the thermal conductivity, the thermal radiative properties, especially their dependence on the coating microstructure...
Proceedings Papers

Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A020, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82118
... Abstract Film cooling and thermal barrier coating technologies are often used in thermal protection of aero-engine turbine blades. But the film-hole structure can be often affected by thermal barrier coatings (TBC) spraying, resulting in the variations of aerodynamic and thermal performances...
Proceedings Papers

Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT13A005, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-79662
.... In other words, the first stage NGV’s lifespan is determined by the vane material’s durability. Therefore, effective cooling systems and thermal barrier coating (TBC) are provided. This paper presents a numerical prediction of the thermomechanical sensitivity of the first stage NGV with film cooling under...
Proceedings Papers

Proc. ASME. GT2021, Volume 6: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels; Microturbines, Turbochargers, and Small Turbomachines, V006T02A003, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58972
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-58972 THERMAL BARRIER COATING APPLIED TO THE STRUCTURAL SHROUD OF AN INSIDE- OUT CERAMIC TURBINE P.K. Dubois1, A. Gauvin-Verville1, B. Picard2, J.-S. Plante1, M...
Proceedings Papers

Proc. ASME. GT2010, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Education; Electric Power; Manufacturing Materials and Metallurgy, 891-898, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-22100
...* and Xiao Huang Dept. of Mechanical and Aerospace Engineering, Carleton University Ottawa, Ontario, Canada K1S 5B6 Weijie Chen # Structures and Materials Performance Laboratory, IAR-NRC Ottawa, Ontario, Canada K1A 0R6 weijie.chen@nrc-cnrc.gc.ca ABSTRACT The life of a thermal barrier coating (TBC) system...
Proceedings Papers

Proc. ASME. GT2007, Volume 5: Turbo Expo 2007, 89-96, May 14–17, 2007
Publisher: American Society of Mechanical Engineers
Paper No: GT2007-27489
... initiation em. [Keywords: Thermal barrier coating, Stress or, crack, isostrain, buckling] INTRODUCTION Thermal barrier coating (TBC) systems provide thermal insulation to gas turbine components exposed to high temperature for aero-propulsion. A TBC system is a multilayered coating consisting of 8%YSZ (TBC...
Proceedings Papers

Proc. ASME. GT2003, Volume 1: Turbo Expo 2003, 581-588, June 16–19, 2003
Publisher: American Society of Mechanical Engineers
Paper No: GT2003-38814
... the exploitation of their assets in terms of efficiency and maintenance. With the application of thermal barrier coatings on turbine blades, pyrometry faces a new challenge as these coatings are not opaque at commonly used wavelengths. The application of TBC’s to protect the metal blades allows an increase...