Abstract
The thermal durability of thermal barrier coatings (TBCs) obtained using feedstock powders with different purity and phase content was investigated by cyclic thermal testing, including the effects on the sintering and phase transformation behaviors. Three kinds of 8 wt.% yttria-stabilized zirconia, namely regular purity (8YSZ), high purity (HP), and no monoclinic phase (nMP), were employed to prepare top coats by atmospheric plasma spraying on a NiCoCrAlY bond coat using a high-velocity oxy-fuel system. Use of 8YSZ, HP, and nMP for plasma spraying affected the microstructure and lifetime of the TBC in furnace cyclic testing (FCT) at 1100 °C and the sintering rate during annealing at 1400 °C for 50, 100, 200, and 400 h. In FCT, the TBC formed from nMP showed the longest durability, while that formed from HP showed lifetime performance similar to that obtained with regular-purity 8YSZ. The TBC obtained with nMP also exhibited the lowest monoclinic phase transition rate, followed by those obtained using HP and 8YSZ.
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L. Xie, M.R. Dorfman, A. Cipitria, S. Paul, I.O. Golosnoy, and T.W. Clyne, Properties and Performance of High-Purity Thermal Barrier Coatings, J. Therm. Spray Technol., 2007, 16(5-6), p 804-808
B. Rajasekaran, G. Mauer, and R. Vassen, Enhanced Characteristics of HVOF-Sprayed MCrAlY Bond Coats for TBC Applications, J. Therm. Spray Technol., 2011, 20(6), p 1209-1216
R. Vaßen, M.O. Jarligo, T. Steinke, D.E. Mack, and D. Stöver, Overview on Advanced Thermal Barrier Coatings, Surf. Coat. Technol., 2010, 205(4), p 938-942
R. Vassen, A. Stuke, and D. Stöver, Recent Developments in the Field of Thermal Barrier Coatings, J. Therm. Spray Technol., 2009, 18(2), p 181-186
T.S. Sidhu, S. Prakash, and R.D. Agrawal, Studies on the Properties of High-Velocity Oxy Fuel Thermal Spray Coatings for Higher Temperature Applications, Mater. Sci., 2009, 41(6), p 805-823
A.N. Khan and J. Lu, Behavior of Air Plasma Sprayed Thermal Barrier Coatings, Subject to Intense Thermal Cycling, Surf. Coat. Technol., 2003, 166, p 37-43
Schilke, P.W. Advanced Gas Turbine Materials and Coatings, Available from www.gepower.com/prod_serv/products/tech_docs/en/downloads/ger3569g.pdf, Accessed 18 April 2011
N.P. Padture, M. Gell, and E.H. Jordan, Thermal Barrier Coatings for Gas-Turbine Engine Applications, Science, 2002, 296, p 280-284
T. Bhatia, A. Ozturk, L. Xie, E. Jordan, B.M. Cetegen, M. Gell, X. Ma, and N. Padture, Mechanisms of Ceramic Coating Deposition in Solution-Precursor Plasma Spray, J. Mater. Res., 2002, 17(9), p 2363-2372
L. Xie, X. Ma, E.H. Jordan, N.P. Padture, T.D. Xiao, and M. Gell, Identification of Coating Deposition Mechanisms in the Solution-Precursor Plasma-Spray Process using Model Spray Experiments, Mater. Sci. Eng. A, 2003, 362, p 204-212
K.W. Schlichting, N.P. Padture, E.H. Jordan, and M. Gell, Failure Modes in Plasma-Sprayed Thermal Barrier Coatings, Mater. Sci. Eng. A, 2003, 342, p 120-130
A. Rabiei and A.G. Evans, Failure Mechanisms Associated with the Thermally Grown Oxide in Plasma-Sprayed Thermal Barrier, Acta Mater., 2000, 48, p 3963-3976
R.L. Jones, Metallurgical and Ceramic Coatings, K.H. Stern, Ed., Chapman & Hall, London, 1996, p 194
E.C. Subbarao, in Science and Technology of Zirconia, Advances in Ceramics, The American Ceramic Society, Columbus, OH, A. H. Heuer, L. W. Hobbs, Eds, 1884, 3 (1)
R. Jones, Thermal Barrier Coatings, Metallurgical and Ceramic Coatings, K.H. Stern, Ed., Chapman & Hall, 1996, 194
J.A. Thompson and T.W. Clyne, The Effect of Heat Treatment on the Stiffness of Zirconia Top Coats in Plasma-Sprayed TBCs, Acta Mater., 2001, 49, p 1565
T.W. Clyne and S.C. Gill, Residual Stresses in Thermally Sprayed Coatings and their Effect on Interfacial Adhesion—A Review of Recent Work, J. Therm. Spray Technol., 1996, 5(1), p 401-418
D. Stover and C. Funke, Directions of the Development of Thermal Barrier Coatings in Energy Applications, J. Mater. Process Technol., 1999, 93, p 195-202
D.M. Zhu and R.A. Miller, Thermal Conductivity and Elastic Modulus Evolution of Thermal Barrier Coatings Under High Heat Flux Conditions, J. Therm. Spray Technol., 2000, 9, p 175-180
S.A. Tsipas, I.O. Golosnoy, R. Damani, and T.W. Clyne, The Effect of a High Thermal Gradient on Sintering and Stiffening in the Top Coat of a Thermal Barrier Coating (TBC) System, J. Therm. Spray Technol., 2004, 13(3), p 370-376
S.R. Choi, D.M. Zhu, and R.A. Miller, Effect of Sintering on Mechanical Properties of Plasma-Sprayed Zirconia-Based Thermal Barrier Coatings, J. Am. Ceram. Soc., 2005, 88(10), p 2859-2867
F. Cernuschi, P. Bianchi, M. Leoni, and P. Scardi, Thermal Diffusivity/Microstructure Relationship in Y-PSZ Thermal Barrier Coatings, J. Therm. Spray Technol., 1999, 8(1), p 102-109
R. Hamacha, P. Fauchais, and F. Nardou, Influence of Dopant on the Thermal Properties of Two Plasma-Sprayed Zirconia Coatings 1. Relationship Between Powder Characteristics and Coating Properties, J. Therm. Spray Technol., 1996, 5(4), p 431-438
S. Stemmer, J. Vleugels, and O. Van Der Biest, Grain Boundary Segregation in High-Purity Yttria-Stabilized Tetragonal Zirconia Polycrystals (T-TZP), J. Eur. Ceram. Soc., 1998, 18, p 1565-1570
J. Wang, H.P. Li, and R. Stevens, Hafnia and Hafnia-Toughened Ceramics, J. Mater. Sci., 1992, 27(20), p 5397-5430
Y.tang, J.P. Longtin, S. Sampath, H. Wang, Effect of the Starting Microstructure on the Thermal Properties of As-Sprayed and Thermally Exposed Plasma-Sprayed YSZ Coatings, J. Am. Ceram. Soc., 2009, 92(3), p 710-716
Material Product Data Sheet, 8% Yttria Stabilized Zirconia Agglomerated and Sintered Thermal Spray Powders, Oerlikon Metco, 2014
V. Viswanathan, G. Dwivedi, and S. Sampath, Engineered Multilayer Thermal Barrier Coatings for Enhanced Durability and Functional Performance, J. Am. Ceram. Soc., 2014, 97(9), p 2770-2778
C. Li, Y. Li, G. Yang, and C. Li, A Novel Plasma-Sprayed Durable Thermal Barrier Coating with a Well-Bonded YSZ Interlayer Between Porous YSZ and Bond Coat, J. Therm. Spray Technol., 2012, 21(3), p 383-390
H.E. Eaton and R.C. Novak, Sintering Studies of Plasma Sprayed Zirconia, Surf. Coat. Technol., 1987, 32, p 227-236
J.A. Thompson and T.W. Clyne, The Effect of Heat Treatment on the Stiffness of Zirconia Top Coats in Plasma-Sprayed TBCs, Acta Mater., 2001, 49(9), p 1565-1575
A. Cipitria, I.O. Golosnoy, and T.W. Clyne, A Sintering Model for Plasma-Sprayed Zirconia TBCs, Part I: Free-Standing Coatings, Acta Mater., 2009, 57, p 980-992
A.F. Renteria and B. Saruhan, Effect of Ageing on Microstructure Changes in EB-PVD Manufactured Standard PYSZ Top Coat of Thermal Barrier Coatings, J. Eur. Ceram. Soc., 2006, 26, p 2249-2255
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This work was supported by a Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korean Government Ministry of Knowledge Economy (No. 2013101010170C).
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Park, KY., Jung, YG., Kim, IS. et al. Effects of Purity and Phase Content of Feedstock Powder on Thermal Durability of Zirconia-Based Thermal Barrier Coatings. J Therm Spray Tech 26, 1161–1167 (2017). https://doi.org/10.1007/s11666-017-0571-4
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DOI: https://doi.org/10.1007/s11666-017-0571-4