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Keywords: thermal barrier coatings
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Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. January 2012, 134(1): 012101.
Published Online: October 28, 2011
...H. M. Tawancy; Luai M. Al-Hadhrami It is known that the relative performance of thermal barrier coatings is largely dependent upon the oxidation properties of the bond coat utilized in the system. Also, the oxidation properties of diffusion-type bond coats (aluminides and their modifications...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. December 2011, 133(12): 122101.
Published Online: September 1, 2011
... content as observed in all sintered samples. 09 04 2011 12 04 2011 01 09 2011 01 09 2011 scanning electron microscopy thermal barrier coatings titanium compounds X-ray diffraction Young's modulus yttrium compounds zirconium compounds 1 Lange , F. F. , 1982...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. September 2011, 133(9): 091301.
Published Online: April 14, 2011
... or for thermal cyclic tests. The former generally provides data for creep of the superalloy and the overall performance, and the later provide data for thermal barrier coating (TBC) spallation as a function of thermally grown oxide thickness, surface roughness, temperature, and thermal mismatch between...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. June 2011, 133(6): 061301.
Published Online: February 14, 2011
... (EB-PVD) coatings. In contrast to EB-PVD, PS-PVD incorporates the vaporized coating material into a supersonic plasma plume. Due to the forced gas stream of the plasma jet, complex shaped parts like multi-airfoil turbine vanes can be coated with columnar thermal barrier coatings using PS-PVD. Even...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. April 2011, 133(4): 042103.
Published Online: November 23, 2010
...Nagaraja S. Rudrapatna; Benjamin H. Peterson; Daniel Greving Modern gas turbine combustors are made of high temperature alloys, employ effusion cooling, and are protected by a thermal barrier coating (TBC). Gas turbine combustor failure modes, such as TBC spallation, cracking, and distortion...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. April 2011, 133(4): 042503.
Published Online: November 19, 2010
...Sergio Filippi; Peter J. Torvik Ceramic coatings applied by air plasma spray or electron beam techniques as thermal barrier coatings or to improve the erosion or corrosion resistance of blades in gas turbine engines are found to add damping to the system. However, such coatings display nonlinear...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. February 2011, 133(2): 022101.
Published Online: October 29, 2010
..., an equation for estimating the temperature of the blade is derived. An analysis of another in-service blade with a thermal barrier coating is carried out. The aluminum content decreases below the bond coat surface due to Al diffusion caused by the Al-oxide formation. This results in the formation of an Al...
Journal Articles
Article Type: Technical Briefs
J. Eng. Gas Turbines Power. November 2010, 132(11): 114501.
Published Online: August 10, 2010
...C. Rinaldi; L. De Maria; M. Mandelli This paper describes the application of a double-sided approach to assess the spent life fraction of thermal barrier coatings (TBCs) at local positions of ex-service blades with NiCoCrAlY-Re bond coat and EB-PVD TBC. A life prediction code implemented...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. July 2010, 132(7): 072806.
Published Online: April 21, 2010
...Michael A. Marr; James S. Wallace; Larry Pershin; Sanjeev Chandra; Javad Mostaghimi A novel metal-based thermal barrier coating was tested in a spark-ignition engine. The coating was applied to the surface of aluminum plugs and exposed to in-cylinder conditions through ports in the cylinder wall...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. February 2010, 132(2): 022103.
Published Online: November 5, 2009
...H. M. Tawancy; Luai M. Al-Hadhrami Current technology of thermal barrier coating systems used in gas turbine blade applications relies on the use of a metallic bond coat, which has a twofold function: (i) it develops a thin layer of aluminum oxide enhancing the adhesion of the ceramic top coat...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. February 2010, 132(2): 022101.
Published Online: October 30, 2009
...Hans-Peter Bossmann; Sharath Bachegowda; Alexander Schnell A reliable lifetime prediction rule for bondcoat/thermal barrier coating (BC/TBC) coated parts in gas turbine operation is necessary to determine remnant service life. The specimens investigated were coated with MCrAlY plus yttria partially...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. January 2010, 132(1): 011301.
Published Online: September 29, 2009
... thermal barrier coatings thermal insulation Ceramic gas turbine development activity has been ongoing since the 1950s, heavily supported by governments in the United States, Japan, the countries of the European Union, and those of the former Soviet Union. Primary drivers for the programs were...
Journal Articles
Article Type: Technical Briefs
J. Eng. Gas Turbines Power. July 2009, 131(4): 044501.
Published Online: April 14, 2009
... metal temperature thermal barrier coatings Future developments in integrated gasification combined cycle (IGCC) plants envision the use of syngas (SG), hydrogen, and oxygen in various proportions as an approach in minimizing C O 2 and N O x emissions. For all fuel...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. July 2009, 131(4): 041301.
Published Online: April 10, 2009
...Rémy J. L. Steenbakker; Jörg P. Feist; Richard G. Wellman; John R. Nicholls Thermal barrier coatings (TBCs) are used to reduce the actual working temperature of the high pressure turbine blade metal surface. Knowing the temperature of the surface of the TBC and at the interface between the bondcoat...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2009, 131(2): 021602.
Published Online: December 29, 2008
... of this design is to gain the capability of performing measurements at the temperature conditions typically found at high pressure turbine exit (1100–1400 K) and in the long term at combustor exit (2000 K or higher). Effect of immersion depth, thermal barrier coating, core engine casing temperature...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. March 2009, 131(2): 022101.
Published Online: December 19, 2008
...N. S. Cheruvu; K. S. Chan; D. W. Gandy Thermal barrier coatings (TBCs) have been recently introduced to hot section components, such as transition pieces and the first two stages of turbine blades and vanes of advanced F, G, and H class land-based turbine engines. The TBC is typically applied...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. January 2009, 131(1): 011301.
Published Online: October 10, 2008
...Xiao Huang Meeting the demands for ever increasing operating temperatures in gas turbines requires concurrent development in cooling technologies, new generations of superalloys, and thermal barrier coatings (TBCs) with increased insulation capability. In the case of the latter, considerable...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. November 2008, 130(6): 061301.
Published Online: August 28, 2008
...A. L. Heyes; J. P. Feist; X. Chen; Z. Mutasim; J. R. Nicholls This paper describes recent developments of the thermal barrier sensor concept for nondestructive evaluation (NDE) of thermal barrier coatings (TBCs) and online condition monitoring in gas turbines. Increases in turbine inlet temperature...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. September 2008, 130(5): 051503.
Published Online: June 13, 2008
.... G. , 1992 , The Chemistry of Saudi Arabian Sand: A Deposition Problem on Helicopter Turbine Airfoils Advances in Synthesis and Processes , SAMPLE, 3 , pp. M92 – M101 . Toriz , F. C. , Thakker , A. B. , and Gupta , S. K. , 1988 , “ Thermal Barrier Coatings for Jet...
Journal Articles
Article Type: Technical Papers
J. Eng. Gas Turbines Power. July 2006, 128(3): 610–616.
Published Online: October 4, 2005
...Mei Wen; Eric H. Jordan; Maurice Gell Nondestructive determination of the remaining life of thermal barrier coatings (TBCs) is highly desirable for components removed from service engines. Remaining life predictions for EB-PVD/Pt-Al TBCs cycled at two temperatures ( 1151 ° C and 1121 ° C ) were...