The deformation behavior of thermally sprayed partially stabilized zirconia (PSZ) coatings are investigated using Hertzian indentation and four-point bend testing, with in situ acoustic emission monitoring. The experimental deformation curves, together with the corresponding acoustic emission responses and the fracture properties of the material are used in defining the deformation characteristics of the coating (ceramic overlay with metallic bond coat where applicable) and substrate composite system. Experiments are aimed in examining the influence of the bond coat and the coating properties on the form of deformation. Substrate temperature and pauses during spraying are demonstrated to strongly effect the coating properties and the resulting fracture/failure characteristics of the composite system. [S0742-4795(00)02503-5]
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July 2000
Technical Papers
Deformation of Plasma Sprayed Thermal Barrier Coatings
Ufuk Senturk,
Ufuk Senturk
Center for Thermal Spray Research, Department of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794-2275
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Rogerio S. Lima,
Rogerio S. Lima
Center for Thermal Spray Research, Department of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794-2275
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Carlos R. C. Lima,
Carlos R. C. Lima
UNIMEP Methodist University of Piracicaba, Technology Center, Rod. Santa Barbara-Iracemapolis, Km 1, Santa Barbara d’Oeste, S. Paulo, 13450-000, Brazil
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Christopher C. Berndt
Christopher C. Berndt
Center for Thermal Spray Research, Department of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794-2275
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Ufuk Senturk
Center for Thermal Spray Research, Department of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794-2275
Rogerio S. Lima
Center for Thermal Spray Research, Department of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794-2275
Carlos R. C. Lima
UNIMEP Methodist University of Piracicaba, Technology Center, Rod. Santa Barbara-Iracemapolis, Km 1, Santa Barbara d’Oeste, S. Paulo, 13450-000, Brazil
Christopher C. Berndt
Center for Thermal Spray Research, Department of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794-2275
Contributed by the International Gas Turbine Institute (IGTI) of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Paper presented at the International Gas Turbine and Aeroengine Congress and Exhibition, Indianapolis, IN, June 7–10, 1999; ASME Paper 99-GT-348. Manuscript received by IGTI March 9, 1999; final revision received by the ASME Headquarters May 15, 2000. Associate Technical Editor: D. Wisler.
J. Eng. Gas Turbines Power. Jul 2000, 122(3): 387-392 (6 pages)
Published Online: May 15, 2000
Article history
Received:
March 9, 1999
Revised:
May 15, 2000
Citation
Senturk , U., Lima, R. S., Lima, C. R. C., and Berndt, C. C. (May 15, 2000). "Deformation of Plasma Sprayed Thermal Barrier Coatings ." ASME. J. Eng. Gas Turbines Power. July 2000; 122(3): 387–392. https://doi.org/10.1115/1.1287493
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