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Thermal/environmental barrier coatings (T/EBCs) are used to protect hot-section superalloys and/or ceramic matrix composite components from hot corrosion and oxidation; however, the majority of T/EBCs exhibit extremely high thermal and ionic conductivities. Here, we obtain a novel rare-earth tantalate with excellent oxygen and thermal insulation via a high-entropy strategy. The high-entropy component (8RE1/8)TaO4 (RE = rare earth), which is designed by large size disorder and mass disorder, has been reassembled into a stabilized monoclinic structure. (8RE1/8)TaO4 had 30.0%–31.1% and 59.2%–67.5% lower intrinsic thermal conductivity than single-RE RETaO4 and 8(Y2O3–ZrO2) 8YSZ at 1200 °C, respectively, and exhibited lower intrinsic thermal conductivity across the entire temperature range of 100–1200 °C. This is the result of strong scattering by the phonon–phonon, grain boundary, domain boundary, dislocation, and vacancy defects. The ionic conductivity of (8RE1/8)TaO4 is 3712–29,667 times lower than that of 8YSZ at 900 °C, benefiting from the strong Ta–O bonding strength, low concentration of mobile oxygen vacancies and severe lattice distortions that impede carrier transport. Moreover, (8RE1/8)TaO4 had superior high-temperature stability and excellent mechanical properties. Analysis of above results demonstrates that (8RE1/8)TaO4 is a promising candidate for T/EBCs.
Padture NP, Gell M, Jordan EH. Thermal barrier coatings for gas-turbine engine applications. Science 2002, 296: 280–284.
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.
Daroonparvar M, Yajid MAM, Yusof NM, et al. Effect of Y2O3 stabilized ZrO2 coating with tri-model structure on bi-layered thermally grown oxide evolution in nano thermal barrier coating systems at elevated temperatures. J Rare Earths 2014, 32: 57–77.
Zhang PX, Duan XJ, Xie XC, et al. Xenotime-type high-entropy (Dy1/7Ho1/7Er1/7Tm1/7Yb1/7Lu1/7Y1/7)PO4: A promising thermal/environmental barrier coating material for SiCf/SiC ceramic matrix composites. J Adv Ceram 2023, 12: 1033–1045.
Wang J, Li JY, Jiang CY, et al. Advanced rare earth tantalate RETaO4 (RE = Dy, Gd and Sm) with excellent oxygen/thermal barrier performance. J Rare Earths 2024, 42: 1595–1603.
Evans AG, He MY, Hutchinson JW. Mechanics-based scaling laws for the durability of thermal barrier coatings. Prog Mater Sci 2001, 46: 249–271.
Tolpygo VK, Clarke DR. Surface rumpling of a (Ni, Pt)Al bond coat induced by cyclic oxidation. Acta Mater 2000, 48: 3283–3293.
Arnal S, Fourcade S, Mauvy F, et al. Design of a new yttrium silicate Environmental Barrier Coating (EBC) based on the relationship between microstructure, transport properties and protection efficiency. J Eur Ceram Soc 2022, 42: 1061–1076.
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.
Wang J, Song JB, Jiang CY, et al. Rare earth tantalate coating materials for thermal and oxidation protection of carbon–carbon composites. Ceram Int 2024, 50: 26703–26714.
Wang R, Dong TS, Di YL, et al. High temperature oxidation resistance and thermal growth oxides formation and growth mechanism of double-layer thermal barrier coatings. J Alloys Compd 2019, 798: 773–783.
Wang SQ, Ye ZY, Ge YL, et al. High temperature oxidation behavior at 1250 °C: A new multilayer modified silicide coating design strategy on niobium alloys. J Mater Sci Technol 2025, 210: 159–169.
Zhao M, Pan W, Li TJ, et al. Oxygen-vacancy-mediated microstructure and thermophysical properties in Zr3Ln4O12 for high-temperature applications. J Am Ceram Soc 2019, 102: 1961–1970.
Lee KN. Yb2Si2O7 Environmental barrier coatings with reduced bond coat oxidation rates via chemical modifications for long life. J Am Ceram Soc 2019, 102: 1507–1521.
Zhang HY, Liu ZW, Yang XB, et al. Interface failure behavior of YSZ thermal barrier coatings during thermal shock. J Alloys Compd 2019, 779: 686–697.
Daroonparvar M, Yajid MAM, Yusof NM, et al. Investigation of three steps of hot corrosion process in Y2O3 stabilized ZrO2 coatings including nano zones. J Rare Earths 2014, 32: 989–1002.
Rajeswari K, Suresh MB, Hareesh US, et al. Studies on ionic conductivity of stabilized zirconia ceramics (8YSZ) densified through conventional and non-conventional sintering methodologies. Ceram Int 2011, 37: 3557–3564.
Moskal G, Mikuśkiewicz M. Microstructure and thermal conductivity characteristics of Sm2Zr2O7+8YSZ type TBCs. Defect Diffus Forum 2013, 336: 91–96.
Lipkin DM, Krogstad JA, Gao Y, et al. Phase evolution upon aging of air-plasma sprayed t'-zirconia coatings: I—Synchrotron X-ray diffraction. J Am Ceram Soc 2013, 96: 290–298.
VanValzah JR, Eaton HE. Cooling rate effects on the tetragonal to monoclinic phase transformation in aged plasma-sprayed yttria partially stabilized zirconia. Surf Coat Tech 1991, 46: 289–300.
Tian ZL, Zheng LY, Wang JM, et al. Theoretical and experimental determination of the major thermo-mechanical properties of RE2SiO5 (RE = Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y) for environmental and thermal barrier coating applications. J Eur Ceram Soc 2016, 36: 189–202.
Yang J, Pan W, Han Y, et al. Mechanical properties, oxygen barrier property, and chemical stability of RE3NbO7 for thermal barrier coating. J Am Ceram Soc 2020, 103: 2302–2308.
Yamamura H, Nishino H, Kakinuma K, et al. Electrical conductivity anomaly around fluorite–pyrochlore phase boundary. Solid State Ion 2003, 158: 359–365.
Ping XY, Meng B, Li C, et al. Thermophysical and electrical properties of rare-earth-cerate high-entropy ceramics. J Am Ceram Soc 2022, 105: 4910–4920.
Wang J, Chong XY, Zhou R, et al. Microstructure and thermal properties of RETaO4 (RE = Nd, Eu, Gd, Dy, Er, Yb, Lu) as promising thermal barrier coating materials. Scripta Mater 2017, 126: 24–28.
Chen L, Hu MY, Wu P, et al. Thermal expansion performance and intrinsic lattice thermal conductivity of ferroelastic RETaO4 ceramics. J Am Ceram Soc 2019, 102: 4809–4821.
Chen L, Li BH, Feng J. Rare-earth tantalates for next-generation thermal barrier coatings. Prog Mater Sci 2024, 144: 101265.
Wang J, Zhou Y, Chong XY, et al. Microstructure and thermal properties of a promising thermal barrier coating: YTaO4. Ceram Int 2016, 42: 13876–13881.
Chen L, Hu MY, Wang JK, et al. Dominant mechanisms of thermo-mechanical properties of weberite-type RE3TaO7 (RE = La, Pr, Nd, Eu, Gd, Dy) tantalates toward multifunctional thermal/environmental barrier coating applications. Acta Mater 2024, 270: 119857.
Chen L, Jiang YH, Chong XY, et al. Synthesis and thermophysical properties of RETa3O9 (RE = Ce, Nd, Sm, Eu, Gd, Dy, Er) as promising thermal barrier coatings. J Am Ceram Soc 2018, 101: 1266–1278.
Wang J, Jin QQ, Song JB, et al. Revealing the low thermal conductivity of high-entropy rare-earth tantalates via multi-scale defect analysis. J Adv Ceram 2023, 12: 2087–2100.
Wang J, Chong XY, Lv L, et al. High-entropy ferroelastic (10RE0.1)TaO4 ceramics with oxygen vacancies and improved thermophysical properties. J Mater Sci Technol 2023, 157: 98–106.
Gurunathan R, Hanus R, Dylla M, et al. Analytical models of phonon–point-defect scattering. Phys Rev Applied 2020, 13: 034011.
Wright AJ, Wang QY, Ko ST, et al. Size disorder as a descriptor for predicting reduced thermal conductivity in medium- and high-entropy pyrochlore oxides. Scripta Mater 2020, 181: 76–81.
Shannon RD. Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Cryst A 1976, 32: 751–767.
Zhu JT, Lou ZH, Zhang P, et al. Preparation and thermal properties of rare earth tantalates (RETaO4) high-entropy ceramics. J Inorg Mater 2021, 36: 411.
Chong XY, Palma JPS, Wang Y, et al. Thermodynamic properties of the Yb–Sb system predicted from first-principles calculations. Acta Mater 2021, 217: 117169.
Wang J, Jin QQ, Song JB, et al. Multiscale defect-mediated thermophysical properties of high-entropy ferroelastic rare-earth tantalates. Ceram Int 2023, 49: 40019–40030.
Shang SL, Wang Y, Kim D, et al. First-principles thermodynamics from phonon and Debye model: Application to Ni and Ni3Al. Comp Mater Sci 2010, 47: 1040–1048.
Wang SQ, Ye ZY, Zhang HP, et al. High-entropy strategy for high-temperature broadband infrared radiation and low thermal conductivity. Ceram Int 2024, 50: 18806–18813.
Leitner J, Voňka P, Sedmidubský D, et al. Application of Neumann–Kopp rule for the estimation of heat capacity of mixed oxides. Thermochim Acta 2010, 497: 7–13.
Mukherjee R, Ghosh B, Saha S, et al. Structural and electrical transport properties of a rare earth double perovskite oxide: Ba2ErNbO6. J Rare Earths 2014, 32: 334–342.
Xiang HM, Xing Y, Dai FZ, et al. High-entropy ceramics: Present status, challenges, and a look forward. J Adv Ceram 2021, 10: 385–441.
Sun ZG, Li JG, Qian HY, et al. Optical grade (Gd0.95− x Lu x Eu0.05)3Al5O12 ceramics with near-zero optical loss: Effects of Lu3+ doping on structural feature, microstructure evolution, and far-red luminescence. J Adv Ceram 2024, 13: 113–123.
Qu CK, Chen L, Lv L, et al. Low thermal conductivity and anisotropic thermal expansion of ferroelastic (Gd1− x Y x )TaO4 ceramics. J Adv Ceram 2022, 11: 1696–1713.
Cong HJ, Zhang HJ, Wang JY, et al. Structural and thermal properties of the monoclinic Lu2SiO5 single crystal: Evaluation as a new laser matrix. J Appl Crystallogr 2009, 42: 284–294.
Korkos S, Xanthopoulos NJ, Botzakaki MA, et al. XPS analysis and electrical conduction mechanisms of atomic layer deposition grown Ta2O5 thin films onto p-Si substrates. J Vac Sci Technol A 2020, 38: 032402.
Simpson R, White RG, Watts JF, et al. XPS investigation of monatomic and cluster argon ion sputtering of tantalum pentoxide. Appl Surf Sci 2017, 405: 79–87.
Frankcombe TJ, Liu Y. Interpretation of oxygen 1s X-ray photoelectron spectroscopy of ZnO. Chem Mater 2023, 35: 5468–5474.
Xiang XM, Zhao HH, Yang J, et al. Promoting effect of KIT-6 to support Ni–Ce0.8Gd0.2O2– δ as efficient coke-resistant catalysts for carbon dioxide reforming of methane. Eur J Inorg Chem 2020, 2020: 631–637.
Lou ZH, Zhang P, Zhu JT, et al. A novel high-entropy perovskite ceramics Sr0.9La0.1(Zr0.25Sn0.25Ti0.25Hf0.25)O3 with low thermal conductivity and high Seebeck coefficient. J Eur Ceram Soc 2022, 42: 3480–3488.
Wang XX, Zhou DY, Li SD, et al. Ferroelectric yttrium doped hafnium oxide films from all-inorganic aqueous precursor solution. Ceram Int 2018, 44: 13867–13872.
Wang J, Zheng Q, Shi XL, et al. Microstructural evolution and thermal–physical properties of YTaO4 coating after high-temperature exposure. Surf Coat Tech 2023, 456: 129222.
Virkar AV, Matsumoto RLK. Ferroelastic domain switching as a toughening mechanism in tetragonal zirconia. J Am Ceram Soc 1986, 69: C‐224–C‐226.
Shian S, Sarin P, Gurak M, et al. The tetragonal–monoclinic, ferroelastic transformation in yttrium tantalate and effect of zirconia alloying. Acta Mater 2014, 69: 196–202.
Lepple M, Ushakov SV, Lilova K, et al. Thermochemistry and phase stability of the polymorphs of yttrium tantalate, YTaO4. J Eur Ceram Soc 2021, 41: 1629–1638.
Wu P, Zhou YX, Wu FS, et al. Theoretical and experimental investigations of mechanical properties for polymorphous YTaO4 ceramics. J Am Ceram Soc 2019, 102: 7656–7664.
Liu B, Liu YC, Zhu CH, et al. Advances on strategies for searching for next generation thermal barrier coating materials. J Mater Sci Technol 2019, 35: 833–851.
Mori M, Hiei Y, Sammes NM, et al. Thermal-expansion behaviors and mechanisms for Ca- or Sr-doped lanthanum manganite perovskites under oxidizing atmospheres. J Electrochem Soc 2000, 147: 1295.
Wang JX, Li LP, Campbell BJ, et al. Structure, thermal expansion and transport properties of BaCe1− x Eu x O3− δ oxides. Mater Chem Phys 2004, 86: 150–155.
Chen XG, Sang WW, Guo YH, et al. Thermophysical performances of (Er1− x Yb x )3TaO7 oxides for high-temperature applications. Ceram Int 2022, 48: 5674–5680.
Wang SQ, Wang YM, Chen GL, et al. High-temperature broadband infrared radiation from rare earth monosilicate-based ceramics. J Eur Ceram Soc 2024, 44: 6510–6517.
Wang SQ, Zhang HP, Wang YM, et al. Doping engineering for high-temperature broadband high emissivity and low thermal conductivity of ytterbium chromate-based ceramics. Ceram Int 2024, 50: 17657–17664.
Sanditov DS, Belomestnykh VN. Relation between the parameters of the elasticity theory and averaged bulk modulus of solids. Tech Phys 2011, 56: 1619–1623.
Kawamura M, Asakura M, Okamoto NL, et al. Plastic deformation of single crystals of the equiatomic Cr−Mn−Fe−Co−Ni high-entropy alloy in tension and compression from 10 K to 1273 K. Acta Mater 2021, 203: 116454.
Zhang S, Wang XH, Zhang C, et al. Microstructure, elastic/mechanical and thermal properties of CrTaO4: A new thermal barrier material. J Adv Ceram 2024, 13: 373–387.
Ren XR, Pan W. Mechanical properties of high-temperature-degraded yttria-stabilized zirconia. Acta Mater 2014, 69: 397–406.
Kim SI, Lee KH, Mun HA, et al. Dense dislocation arrays embedded in grain boundaries for high-performance bulk thermoelectrics. Science 2015, 348: 109–114.
Schulz U, Saruhan B, Fritscher K, et al. Review on advanced EB-PVD ceramic topcoats for TBC applications. Int J Appl Ceram Tec 2004, 1: 302–315.
Stanek CR, Minervini L, Grimes RW. Nonstoichiometry in A2B2O7 pyrochlores. J Am Ceram Soc 2002, 85: 2792–2798.
Liu DB, Shi BL, Geng LY, et al. High-entropy rare-earth zirconate ceramics with low thermal conductivity for advanced thermal-barrier coatings. J Adv Ceram 2022, 11: 961–973.
Cahill DG, Watson SK, Pohl RO. Lower limit to the thermal conductivity of disordered crystals. Phys Rev B 1992, 46: 6131–6140.
Callaway J. Model for lattice thermal conductivity at low temperatures. Phys Rev 1959, 113: 1046–1051.
Toberer ES, Zevalkink A, Snyder GJ. Phonon engineering through crystal chemistry. J Mater Chem 2011, 21: 15843–15852.
Yang TY, Gu SW, Zhang YX, et al. Pseudopolymorphic phase engineering for improved thermoelectric performance in copper sulfides. Adv Mater 2024, 36: 2308353.
Zhu JT, Xu J, Zhang P, et al. Enhanced mechanical and thermal properties of ferroelastic high-entropy rare-earth-niobates. Scripta Mater 2021, 200: 113912.
Chung JD, McGaughey AJH, Kaviany M. Role of phonon dispersion in lattice thermal conductivity modeling. J Heat Transfer 2004, 126: 376–380.
Klemens PG, Gell M. Thermal conductivity of thermal barrier coatings. Mater Sci Eng A 1998, 245: 143–149.
Petric A, Ling H. Electrical conductivity and thermal expansion of spinels at elevated temperatures. J Am Ceram Soc 2007, 90: 1515–1520.
Ping XY, Meng B, Yu XH, et al. Structural, mechanical and thermal properties of cubic bixbyite-structured high-entropy oxides. Chem Eng J 2023, 464: 142649.
Asadikiya M, Zhong Y. Oxygen ion mobility and conductivity prediction in cubic yttria-stabilized zirconia single crystals. J Mater Sci 2018, 53: 1699–1709.
Burbano M, Norberg ST, Hull S, et al. Oxygen vacancy ordering and the conductivity maximum in Y2O3-doped CeO2. Chem Mater 2012, 24: 222–229.
Marrocchelli D, Bishop SR, Tuller HL, et al. Understanding chemical expansion in non-stoichiometric oxides: Ceria and zirconia case studies. Adv Funct Mater 2012, 22: 1958–1965.
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