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Journal of Advanced Ceramics 2023, 12(9): 1712-1730 https://doi.org/10.26599/JAC.2023.9220781
Research Article | Open Access | Issue | Published: 01 September 2023

Design of Ti2AlC/YSZ TBCs for more efficient in resisting CMAS attack

Show Author's Information Lei Guoa,b( ),  Yanyan Lia,  Guang Lia,c
School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
Tianjin Key Laboratory of Advanced Joining Technology, Key Lab of Advanced Ceramics and Machining Technology, Ministry of Education, Tianjin 300072, China
Shanghai Institute of Space Power-Sources, Shanghai 200240, China
Keywords:
thermal barrier coatings (TBCs), calcium–magnesium–alumina–silicate (CMAS), Ti2AlC/YSZ, pre-oxidation design, corrosion resistance mechanisms
Cite this article:
Guo L, Li Y, Li G. Design of Ti2AlC/YSZ TBCs for more efficient in resisting CMAS attack. Journal of Advanced Ceramics, 2023, 12(9): 1712-1730. https://doi.org/10.26599/JAC.2023.9220781
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Abstract Full text About this article

Ti2AlC has been demonstrated as the promising protective layer material for thermal barrier coatings (TBCs) against calcium–magnesium–alumina–silicate (CMAS) attack. In this study, the reliability of Ti2AlC coatings against the CMAS corrosion was explored, and new Ti2AlC/YSZ TBCs more efficiently resistant to CMAS were designed. The fabricated Ti2AlC coatings inevitably contain some impurity phases (TiC and Al2Ti3), the contents of which were minimized by optimizing the spraying distance. Corrosion tests revealed that Ti2AlC/YSZ TBCs yielded higher resistance to the CMAS attack than YSZ TBCs, but with long-term exposure to CMAS, the Ti2AlC protective coating exhibited microstructure degradation due to the presence of the impurity phases, which caused the formation of a layer mixed with Al2O3 and TiO2 rather than a continuous compact Al2O3 layer on the surface. Pre-oxidation schemes were designed in air or with a controlled oxygen partial pressure, which revealed that the pre-oxidation at an oxygen partial pressure of ~630 Pa could promote a continuous Al2O3 layer formed on the Ti2AlC protective coating surface. Furthermore, a vacuum heat treatment at 867 ℃ for 10 h before pre-oxidation was beneficial for the formation of the compact Al2O3 layer. Through the above scheme design, new Ti2AlC/YSZ TBCs were obtained, which had reduced impurity phase contents and a pre-oxide layer with an ideal structure on the surface. New TBCs exhibit higher microstructure stability exposed to CMAS and more efficient CMAS resistance.


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Design of Ti2AlC/YSZ TBCs for more efficient in resisting CMAS attack

Show Author's information Lei Guoa,b( ), Yanyan Lia, Guang Lia,c
School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
Tianjin Key Laboratory of Advanced Joining Technology, Key Lab of Advanced Ceramics and Machining Technology, Ministry of Education, Tianjin 300072, China
Shanghai Institute of Space Power-Sources, Shanghai 200240, China

Abstract

Ti2AlC has been demonstrated as the promising protective layer material for thermal barrier coatings (TBCs) against calcium–magnesium–alumina–silicate (CMAS) attack. In this study, the reliability of Ti2AlC coatings against the CMAS corrosion was explored, and new Ti2AlC/YSZ TBCs more efficiently resistant to CMAS were designed. The fabricated Ti2AlC coatings inevitably contain some impurity phases (TiC and Al2Ti3), the contents of which were minimized by optimizing the spraying distance. Corrosion tests revealed that Ti2AlC/YSZ TBCs yielded higher resistance to the CMAS attack than YSZ TBCs, but with long-term exposure to CMAS, the Ti2AlC protective coating exhibited microstructure degradation due to the presence of the impurity phases, which caused the formation of a layer mixed with Al2O3 and TiO2 rather than a continuous compact Al2O3 layer on the surface. Pre-oxidation schemes were designed in air or with a controlled oxygen partial pressure, which revealed that the pre-oxidation at an oxygen partial pressure of ~630 Pa could promote a continuous Al2O3 layer formed on the Ti2AlC protective coating surface. Furthermore, a vacuum heat treatment at 867 ℃ for 10 h before pre-oxidation was beneficial for the formation of the compact Al2O3 layer. Through the above scheme design, new Ti2AlC/YSZ TBCs were obtained, which had reduced impurity phase contents and a pre-oxide layer with an ideal structure on the surface. New TBCs exhibit higher microstructure stability exposed to CMAS and more efficient CMAS resistance.

Keywords: thermal barrier coatings (TBCs), calcium–magnesium–alumina–silicate (CMAS), Ti2AlC/YSZ, pre-oxidation design, corrosion resistance mechanisms

References(59)

[1]
Song CK, Ye F, Cheng LF, et al. Long-term ceramic matrix composite for aeroengine. J Adv Ceram 2022, 11: 1343–1374.
DOI Google Scholar
[2]
Salwan GK, Subbarao R, Mondal S. Comparison and selection of suitable materials applicable for gas turbine blades. Mater Today Proc 2021, 46: 8864–8870.
DOI Google Scholar
[3]
Li XL, Li W, Lashari MI, et al. Fatigue failure behavior and strength prediction of nickel-based superalloy for turbine blade at elevated temperature. Eng Fail Anal 2022, 136: 106191.
DOI Google Scholar
[4]
Wei ZY, Meng GH, Chen L, et al. Progress in ceramic materials and structure design toward advanced thermal barrier coatings. J Adv Ceram 2022, 11: 985–1068.
DOI Google Scholar
[5]
Yang HT, Zhang YW, Li Y, et al. In situ observation of environmental barrier coating against calcium–magnesium–alumina–silicate attack at elevated temperature. Int J Appl Ceram Technol 2021, 18: 1281–1287.
DOI Google Scholar
[6]
Krause AR, Garces HF, Dwivedi G, et al. Calcia–magnesia–alumino–silicate (CMAS)-induced degradation and failure of air plasma sprayed yttria-stabilized zirconia thermal barrier coatings. Acta Mater 2016, 105: 355–366.
DOI Google Scholar
[7]
Krämer S, Yang J, Levi CG, et al. Thermochemical interaction of thermal barrier coatings with molten CaO–MgO–Al2O3–SiO2 (CMAS) deposits. J Am Ceram Soc 2006, 89: 3167–3175.
DOI Google Scholar
[8]
Ni DW, Cheng Y, Zhang JP, et al. Advances in ultra-high temperature ceramics, composites, and coatings. J Adv Ceram 2022, 11: 1–56.
DOI Google Scholar
[9]
Shi Y, Li BW, Zhao M, et al. Growth of diopside crystals in CMAS glass-ceramics using Cr2O3 as a nucleating agent. JAm Ceram Soc 2018, 101: 3968–3978.
DOI Google Scholar
[10]
Wei XD, Zhao ZC, An YL, et al. Effect of modulating the phase structure of YSZ ceramics by TiO2 doping on the CMAS corrosion resistance at 1250 ℃. Ceram Int 2023, 49: 14624–14634.
DOI Google Scholar
[11]
Fang HJ, Wang WZ, Huang JB, et al. Corrosion resistance and thermal-mechanical properties of ceramic pellets to molten calcium–magnesium–alumina–silicate (CMAS). Ceram Int 2019, 45: 19710–19719.
DOI Google Scholar
[12]
Senturk BS, Garces HF, Ortiz AL, et al. CMAS-resistant plasma sprayed thermal barrier coatings based on Y2O3-stabilized ZrO2 with Al3+ and Ti4+ solute additions. J Therm Spray Technol 2014, 23: 708–715.
DOI Google Scholar
[13]
Kirbiyik F, Gok MG, Goller G. Application of thermal gradient and thermal cycling tests to Al2O3/CYSZ functionally graded TBC in the presence of simultaneous hot corrosion and CMAS effects. Surf Coat Technol 2022, 444: 128688.
DOI Google Scholar
[14]
Song XM, Xu YJ, Ding Y, et al. Study of microstructure, electronic structure and thermal properties of Al2O3-doped tetragonal YSZ coatings. Appl Surf Sci 2021, 542: 148553.
DOI Google Scholar
[15]
Guo L, Gao Y, Xin H. Laser modification parameters optimization and structural design of thermal barrier coatings. Acta Aeronaut Astronaut Sin 2021, 42(7): 424114. (in Chinese)
Google Scholar
[16]
Guo YQ, Song WJ, Guo L, et al. Molten-volcanic-ash-phobic thermal barrier coating based on biomimetic structure. Adv Sci 2023, 10: e2205156.
DOI Google Scholar
[17]
Guo YQ, Guo L, Li XX, et al. Ultrafast laser reconstructed PS-PVD thermal barrier coatings with superior silicophobic triple-scale micro/nano structure. Mater Des 2023, 228: 111846.
DOI Google Scholar
[18]
Jin G, Fang YC, Cui XF, et al. Effect of YSZ fibers and carbon nanotubes on bonding strength and thermal cycling lifetime of YSZ–La2Zr2O7 thermal barrier coatings. Surf Coat Technol 2020, 397: 125986.
DOI Google Scholar
[19]
Karaoglanli AC, Doleker KM, Ozgurluk Y. Interface failure behavior of yttria stabilized zirconia (YSZ), La2Zr2O7, Gd2Zr2O7, YSZ/La2Zr2O7 and YSZ/Gd2Zr2O7 thermal barrier coatings (TBCs) in thermal cyclic exposure. Mater Charact 2020, 159: 110072.
DOI Google Scholar
[20]
Li BW, Sun JY, Guo L. CMAS corrosion behavior of Sc doped Gd2Zr2O7/YSZ thermal barrier coatings and their corrosion resistance mechanisms. Corros Sci 2021, 193: 109899.
DOI Google Scholar
[21]
Ozgurluk Y, Karaoglanli AC, Ahlatci H. Comparison of calcium–magnesium–alumina–silicate (CMAS) resistance behavior of produced with electron beam physical vapor deposition (EB-PVD) method YSZ and Gd2Zr2O7/YSZ thermal barrier coatings systems. Vacuum 2021, 194: 110576.
DOI Google Scholar
[22]
Guo L, Yan Z, Li ZH, et al. GdPO4 as a novel candidate for thermal barrier coating applications at elevated temperatures. Surf Coat Technol 2018, 349: 400–406.
DOI Google Scholar
[23]
Keyvani A. Microstructural stability oxidation and hot corrosion resistance of nanostructured Al2O3/YSZ composite compared to conventional YSZ TBC coatings. J Alloys Compd 2015, 623: 229–237.
DOI Google Scholar
[24]
Guo YQ, Wei LL, He Q, et al. PS-PVD alumina overlayer on thermal barrier coatings against CMAS attack. J Therm Spray Technol 2021, 30: 864–872.
DOI Google Scholar
[25]
Dai MQ, Song XM, Lin CC, et al. Investigation of microstructure changes in Al2O3–YSZ coatings and YSZ coatings and their effect on thermal cycle life. J Adv Ceram 2022, 11: 345–353.
DOI Google Scholar
[26]
Bocanegra-Bernal MH, Garcia-Reyes A, Dominguez-Rios C, et al. Towards improving low-temperature degradation of zirconia/alumina ceramics via in-situ formation of an Al2O3 functional surface layer through sintering in the presence of graphite powder. J Alloys Compd 2020, 818: 152840.
DOI Google Scholar
[27]
Fan JF, Liu G, Zhuo XS, et al. In-situ reaction synthesis Al2O3 overlay modified 7YSZ TBC for NaCl hot corrosion. Ceram Int 2021, 47: 22404–22415.
DOI Google Scholar
[28]
Zhang XF, Zhou KS, Wei X, et al. In situ synthesis of α-alumina layer at top yttrium-stabilized zirconia thermal barrier coatings for oxygen barrier. Ceram Int 2014, 40: 12703–12708.
DOI Google Scholar
[29]
Yan Z, Guo L, Zhang Z, et al. Versatility of potential protective layer material Ti2AlC on resisting CMAS corrosion to thermal barrier coatings. Corros Sci 2020, 167: 108532.
DOI Google Scholar
[30]
Cui B, Jayaseelan DD, Lee WE. Microstructural evolution during high-temperature oxidation of Ti2AlC ceramics. Acta Mater 2011, 59: 4116–4125.
DOI Google Scholar
[31]
Jing J, Li JM, He Z, et al. High-temperature CMAS resistance performance of Ti2AlC oxide scales. Corros Sci 2020, 174: 108832.
DOI Google Scholar
[32]
Guo L, Yan Z, Wang XH, et al. Ti2AlC MAX phase for resistance against CMAS attack to thermal barrier coatings. Ceram Int 2019, 45: 7627–7634.
DOI Google Scholar
[33]
Zhang XF, Zhou KS, Liu M, et al. Adsorbability and spreadability of calcium–magnesium–alumino–silicate (CMAS) on Al-modified 7YSZ thermal barrier coating. Ceram Int 2016, 42: 19349–19356.
DOI Google Scholar
[34]
Wang P, Mei BC, Hong XL, et al. Synthesis of Ti2AlC by hot pressing and its mechanical and electrical properties. Trans Nonferrous Met Soc China 2007, 17: 1001–1004.
DOI Google Scholar
[35]
Zhang Z, Lim SH, Chai JW, et al. Plasma spray of Ti2AlC MAX phase powders: Effects of process parameters on coatings' properties. Surf Coat Technol 2017, 325: 429–436.
DOI Google Scholar
[36]
Zhang Z, Lim SH, Chai JW, et al. Kerosene-fuelled high velocity oxy-fuel (HVOF) spray of Ti2AlC MAX phase powders. J Alloys Compd 2018, 735: 377–385.
DOI Google Scholar
[37]
Tian YX, Xiao HQ, Ren LR, et al. A new strategy to fabricate Ti2AlC MAX coatings by the two-step laser method. Surf Coat Technol 2022, 448: 128944.
DOI Google Scholar
[38]
Lamuta C, Di Girolamo G, Pagnotta L. Microstructural, mechanical and tribological properties of nanostructured YSZ coatings produced with different APS process parameters. Ceram Int 2015, 41: 8904–8914.
DOI Google Scholar
[39]
Frodelius J, Sonestedt M, Björklund S, et al. Ti2AlC coatings deposited by high velocity oxy-fuel spraying. Surf Coat Technol 2008, 202: 5976–5981.
DOI Google Scholar
[40]
Han SH, Zhang JJ, Li TJ. Corrosion behavior and failure prediction of YSZ coatings under CMAS attack. J Therm Spray Technol 2021, 30: 708–715.
DOI Google Scholar
[41]
Smialek JL. Relative Ti2AlC scale volatility under 1300 ℃ combustion conditions. Coatings 2020, 10: 142.
DOI Google Scholar
[42]
Zhang Z, Lai DMY, Lim SH, et al. Alleviating delamination of Ti2AlC coating upon oxidation at 600 ℃ with heavy incorporation of TiC. J Alloys Compd 2019, 790: 536–546.
DOI Google Scholar
[43]
Wang XH, Zhou YC. Solid–liquid reaction synthesis and simultaneous densification of polycrystalline Ti2AlC. Z Für Met 2002, 93: 66–71.
DOI Google Scholar
[44]
Sonestedt M, Frodelius J, Sundberg M, et al. Oxidation of Ti2AlC bulk and spray deposited coatings. Corros Sci 2010, 52: 3955–3961.
DOI Google Scholar
[45]
Peng H, Wang L, Guo L, et al. Degradation of EB-PVD thermal barrier coatings caused by CMAS deposits. Prog Nat Sci Mater Int 2012, 22: 461–467.
DOI Google Scholar
[46]
Yan Z, Guo L, Li ZH, et al. Effects of laser glazing on CMAS corrosion behavior of Y2O3 stabilized ZrO2 thermal barrier coatings. Corros Sci 2019, 157: 450–461.
DOI Google Scholar
[47]
Guo L, Li G, Wu J, et al. Effects of pellet surface roughness and pre-oxidation temperature on CMAS corrosion behavior of Ti2AlC. J Adv Ceram 2022, 11: 945–960.
DOI Google Scholar
[48]
Poerschke DL, Barth TL, Levi CG. Equilibrium relationships between thermal barrier oxides and silicate melts. Acta Mater 2016, 120: 302–314.
DOI Google Scholar
[49]
Shimada S. A thermoanalytical study of oxidation of TiC by simultaneous TGA-DTA-MS analysis. J Mater Sci 1996, 31: 673–677.
DOI Google Scholar
[50]
Shimada S, Kozeki M. Oxidation of TiC at low temperatures. J Mater Sci 1992, 27: 1869–1875.
DOI Google Scholar
[51]
Zhang LH, Koka RV. A study on the oxidation and carbon diffusion of TiC in alumina-titanium carbide ceramics using XPS and Raman spectroscopy. Mater Chem Phys 1998, 57: 23–32.
DOI Google Scholar
[52]
Luthra KL. Stability of protective oxide films on Ti-base alloys. Oxid Met 1991, 36: 475–490.
DOI Google Scholar
[53]
Rahmel A, Spencer PJ. Thermodynamic aspects of TiAl and TiSi2 oxidation: The Al–Ti–O and Si–Ti–O Phase diagrams. Oxid Met 1991, 35: 53–68.
DOI Google Scholar
[54]
Gauthier V, Dettenwanger F, Schütze M, et al. Oxidation-resistant aluminide coatings on γ-TiAl. Oxid Met 2003, 59: 233–255.
DOI Google Scholar
[55]
Webster RI, Opila EJ. The effect of TiO2 additions on CaO–MgO–Al2O3–SiO2 (CMAS) crystallization behavior from the melt. J Am Ceram Soc 2019, 102: 3354–3367.
DOI Google Scholar
[56]
Golovchak R, Davis MJ, Vullo P, et al. Nature of Pd and Ti metals in the structure of CMAS glass and ceramics. J Am Ceram Soc 2014, 97: 1971–1978.
DOI Google Scholar
[57]
Zhang Z, Lai DMY, Lim SH, et al. Isothermal oxidation of the Ti2AlC MAX phase coatings deposited by kerosene-fuelled HVOF spray. Corros Sci 2018, 138: 266–274.
DOI Google Scholar
[58]
Smialek JL. Kinetic aspects of Ti2AlC MAX phase oxidation. Oxid Met 2015, 83: 351–366.
DOI Google Scholar
[59]
Frodelius J, Johansson EM, Córdoba JM, et al. Annealing of thermally sprayed Ti2AlC coatings. Int J Appl Ceram Technol 2011, 8: 74–84.
DOI Google Scholar
Publication history
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Publication history

Received: 04 May 2023
Revised: 22 June 2023
Accepted: 24 June 2023
Published: 01 September 2023
Issue date: September 2023

Copyright

© The Author(s) 2023.

Acknowledgements

The research is sponsored by the National Natural Science Foundation of China (Grant No. 51971156). We thank Qing He and Shixing Wang (Beijing Jinlunkuntian Special Machine Co., Ltd.) for preparation of Ti2AlC/YSZ TBCs.

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