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Keywords: thermal barrier coating
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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
Paper No: GT2021-58972
... microturbine limits. This calls for high-temperature refractory ceramics, which call for a new ceramic-specific, microturbine design like the Inside-Out Ceramic Turbine (ICT). This study focuses on the applicability of a refractory thermal barrier coating (TBC) to the internal surface of the ICT cooling ring...
Proceedings Papers

Proc. ASME. GT2021, Volume 5A: Heat Transfer — Combustors; Film Cooling, V05AT12A004, June 7–11, 2021
Paper No: GT2021-58950
...Abstract Abstract Few studies in the open literature have studied the effect of thermal barrier coatings when used in combination with shaped hole film cooling and enhanced internal cooling techniques. The current study presents RANS conjugate heat transfer simulations that identify trends...
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
Paper No: GT2010-22100
... 11 01 2011 The life of a thermal barrier coating (TBC) system is governed by the microstructural evolution of the thermally grown oxide (TGO) layer between the ceramic top layer and the bond coat. While the TGO provides a barrier to the oxygen diffusion, its continuous growth imposes...
Proceedings Papers

Proc. ASME. GT2008, Volume 6: Turbomachinery, Parts A, B, and C, 2413-2423, June 9–13, 2008
Paper No: GT2008-50597
... 04 08 2009 The unsteady aerodynamic and aero-thermal performance of a first stage gas turbine bucket with thermal barrier coating (TBC) and internal cooling configuration were investigated by application of a three dimensional Navier-Stokes commercial turbomachinery oriented CFD-code...
Proceedings Papers

Proc. ASME. GT2007, Volume 5: Turbo Expo 2007, 89-96, May 14–17, 2007
Paper No: GT2007-27489
... GPa, but matches closely with the simulated transverse stress. High crack driving force resulting from low stress and small size defects (around 2 microns) facilitates early crack initiation in TBC system. Thermal barrier coating Stress intensity factor crack isostrain buckling ur M CA...
Proceedings Papers

Proc. ASME. GT2003, Volume 1: Turbo Expo 2003, 581-588, June 16–19, 2003
Paper No: GT2003-38814
... 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 of the firing...