Influence of order-disorder transition on the mechanical and thermophysical properties of A2B2O7 high-entropy ceramics

Jiatong ZHU; Mingyue WEI; Jie XU; Runwu YANG; Xuanyu MENG; Ping ZHANG; Jinlong YANG; Guangzhong LI; Feng GAO

doi:10.1007/s40145-022-0605-3

Journal of Advanced Ceramics 2022, 11(8): 1222-1234 https://doi.org/10.1007/s40145-022-0605-3

Research Article |

Open Access | Issue | Published: 25 July 2022

Influence of order-disorder transition on the mechanical and thermophysical properties of A₂B₂O₇ high-entropy ceramics

Show Author's Information Hide Author's Information Jiatong ZHU^{^a}, Mingyue WEI^{^a}, Jie XU^{^a^,^b}(

), Runwu YANG^{^a}, Xuanyu MENG^{^a}, Ping ZHANG^{^a}, Jinlong YANG^{^c}, Guangzhong LI^{^d}(

), Feng GAO^{^a^,^b}

aState Key Laboratory of Solidification Processing, MIIT Key Laboratory of Radiation Detection Materials and Devices, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China

bNPU-QMUL Joint Research Institute of Advanced Materials and Structure, Northwestern Polytechnical University, Xi’an 710072, China

cState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

dState Key Laboratory of Porous Metal Materials, Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China

Keywords:

thermal conductivity, high-entropy ceramics, mechanical properties, A₂B₂O₇, order-disorder transition (ODT)

Cite this article:

ZHU J, WEI M, XU J, et al. Influence of order-disorder transition on the mechanical and thermophysical properties of A₂B₂O₇ high-entropy ceramics. Journal of Advanced Ceramics, 2022, 11(8): 1222-1234. https://doi.org/10.1007/s40145-022-0605-3

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Abstract

The order-disorder transition (ODT) of A₂B₂O₇ compounds obtained enormous attention owing to the potential application for thermal barrier coating (TBC) design. In this work, the influence of ODT on the mechanical and thermophysical properties of dual-phase A₂B₂O₇ high-entropy ceramics was investigated by substituting Ce⁴⁺ and Hf⁴⁺ with different ionic radii on B-sites (Zr⁴⁺). The X-ray diffraction (XRD), Raman, and transmission electron microscopy (TEM) results show that r_A3+/r_B4+ = 1.47 is the critical value of ODT phase boundary with different doping B-site ion contents, and the energy dispersive spectroscopy (EDS) results further indicate the uniform distribution of elements. Interestingly, owing to the high intrinsic disorder derived from high-entropy effect, the A₂B₂O₇ high-entropy ceramics exhibit unreduced modulus (E₀ ≈ 230 GPa) and enhanced mechanical properties (HV ≈ 10 GPa, K_IC ≈ 2.3 MPa·m^0.5). A₂B₂O₇ high-entropy ceramics exhibit excellent thermal stability with relatively high thermal expansion coefficients (TECs) (Hf0.25, 11.20×10^-6 K^-1, 1000 ℃). Moreover, the matching calculation implied that the ODT further enhances the phonon scattering coefficient, leading to a relatively lower thermal conductivity of (La_0.25Eu_0.25Gd_0.25Yb_0.25)₂(Zr_0.85Ce_0.15)₂O₇ (1.48-1.51 W/(m·K), 100-500 ℃) compared with other components. This present work provides a novel composition design principle for high-entropy ceramics, as well as a material selection rule for high-temperature insulation applications.

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About this article

Influence of order-disorder transition on the mechanical and thermophysical properties of A₂B₂O₇ high-entropy ceramics

Show Author's information Hide Author's Information Jiatong ZHU^{^a}, Mingyue WEI^{^a}, Jie XU^{^a^,^b}(

), Runwu YANG^{^a}, Xuanyu MENG^{^a}, Ping ZHANG^{^a}, Jinlong YANG^{^c}, Guangzhong LI^{^d}(

), Feng GAO^{^a^,^b}

bNPU-QMUL Joint Research Institute of Advanced Materials and Structure, Northwestern Polytechnical University, Xi’an 710072, China

cState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

dState Key Laboratory of Porous Metal Materials, Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China

Abstract

Keywords: thermal conductivity, high-entropy ceramics, mechanical properties, A₂B₂O₇, order-disorder transition (ODT)

References(46)

[1]

Padture NP, Gell M, Jordan EH. Thermal barrier coatings for gas-turbine engine applications. Science 2002, 296: 280-284.

DOI Google Scholar

[2]

Zhang J, Guo XY, Jung YG, et al. Lanthanum zirconate based thermal barrier coatings: A review. Surf Coat Technol 2017, 323: 18-29.

DOI Google Scholar

[3]

Liu B, Wang JY, Li FZ, et al. Theoretical elastic stiffness, structural stability and thermal conductivity of La₂T₂O₇ (T = Ge, Ti, Sn, Zr, Hf) pyrochlore. Acta Mater 2010, 58: 4369-4377.

DOI Google Scholar

[4]

Vassen R, Cao XQ, Tietz F, et al. Zirconates as new materials for thermal barrier coatings. J Am Ceram Soc 2000, 83: 2023-2028.

DOI Google Scholar

[5]

Cao XQ, Vassen R, Fischer W, et al. Lanthanum-cerium oxide as a thermal barrier-coating material for high- temperature applications. Adv Mater 2003, 15: 1438-1442.

DOI Google Scholar

[6]

Wan CL, Zhang W, Wang YF, et al. Glass-like thermal conductivity in ytterbium-doped lanthanum zirconate pyrochlore. Acta Mater 2010, 58: 6166-6172.

DOI Google Scholar

[7]

Xiang JY, Chen SH, Huang JH, et al. Phase structure and thermophysical properties of co-doped La₂Zr₂O₇ ceramics for thermal barrier coatings. Ceram Int 2012, 38: 3607-3612.

DOI Google Scholar

[8]

Wan CL, Qu ZX, Du AB, et al. Order-disorder transition and unconventional thermal conductivities of the (Sm_1-xYb_x)₂Zr₂O₇ series. J Am Ceram Soc 2011, 94: 592-596.

DOI Google Scholar

[9]

Wang YF, Yang F, Xiao P. Role and determining factor of substitutional defects on thermal conductivity: A study of La₂(Zr_1-xB_x)₂O₇ (B = Hf, Ce, 0 ≤ x ≤ 0.5) pyrochlore solid solutions. Acta Mater 2014, 68: 106-115.

DOI Google Scholar

[10]

Wuensch BJ, Eberman KW. Order-disorder phenomena in A₂B₂O₇ pyrochlore oxides. JOM 2000, 52: 19-21.

DOI Google Scholar

[11]

Chartier A, Meis C, Weber WJ, et al. Theoretical study of disorder in Ti-substituted La₂Zr₂O₇. Phys Rev B 2002, 65: 134116.

DOI Google Scholar

[12]

Mandal BP, Banerji A, Sathe V, et al. Order-disorder transition in Nd_2-yGd_yZr₂O₇ pyrochlore solid solution: An X-ray diffraction and Raman spectroscopic study. J Solid State Chem 2007, 180: 2643-2648.

DOI Google Scholar

[13]

Oses C, Toher C, Curtarolo S. High-entropy ceramics. Nat Rev Mater 2020, 5: 295-309.

DOI Google Scholar

[14]

Zhang RZ, Reece MJ. Review of high entropy ceramics: Design, synthesis, structure and properties. J Mater Chem A 2019, 7: 22148-22162.

DOI Google Scholar

[15]

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.

DOI Google Scholar

[16]

Akrami S, Edalati P, Fuji M, et al. High-entropy ceramics: Review of principles, production and applications. Mater Sci Eng R Rep 2021, 146: 100644.

DOI Google Scholar

[17]

Zhao ZF, Chen H, Xiang HM, et al. High entropy defective fluorite structured rare-earth niobates and tantalates for thermal barrier applications. J Adv Ceram 2020, 9: 303-311.

DOI Google Scholar

[18]

Zhao ZF, Xiang HM, Chen H, et al. High-entropy (Nd_0.2Sm_0.2Eu_0.2Y_0.2Yb_0.2)₄Al₂O₉ with good high temperature stability, low thermal conductivity, and anisotropic thermal expansivity. J Adv Ceram 2020, 9: 595-605.

Google Scholar

[19]

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.

DOI Google Scholar

[20]

Li F, Zhou L, Liu JX, et al. High-entropy pyrochlores with low thermal conductivity for thermal barrier coating materials. J Adv Ceram 2019, 8: 576-582.

DOI Google Scholar

[21]

Wright AJ, Wang QY, Hu CZ, et al. Single-phase duodenary high-entropy fluorite/pyrochlore oxides with an order- disorder transition. Acta Mater 2021, 211: 116858.

DOI Google Scholar

[22]

Teng Z, Zhu LN, Tan YQ, et al. Synthesis and structures of high-entropy pyrochlore oxides. J Eur Ceram Soc 2020, 40: 1639-1643.

DOI Google Scholar

[23]

Zhu JT, Meng XY, Zhang P, et al. Dual-phase rare-earth- zirconate high-entropy ceramics with glass-like thermal conductivity. J Eur Ceram Soc 2021, 41: 2861-2869.

DOI Google Scholar

[24]

Evans AG, Charles EA. Fracture toughness determinations by indentation. J Am Ceram Soc 1976, 59: 371-372.

DOI Google Scholar

[25]

Boccaccini DN, Boccaccini AR. Dependence of ultrasonic velocity on porosity and pore shape in sintered materials. J Nondestruct Eval 1997, 16: 187-192.

DOI Google Scholar

[26]

Leitner J, Voňka P, Sedmidubský D, et al. Application of Neumann-Kopp rule for the estimation of heat capacity of mixed oxides. Thermochimica Acta 2010, 497: 7-13.

DOI Google Scholar

[27]

Schlichting KW, Padture NP, Klemens PG. Thermal conductivity of dense and porous yttria-stabilized zirconia. J Mater Sci 2001, 36: 3003-3010.

DOI Google Scholar

[28]

Blanchard PER, Clements R, Kennedy BJ, et al. Does local disorder occur in the pyrochlore zirconates? Inorg Chem 2012, 51: 13237-13244.

DOI Google Scholar

[29]

Wang YH, Jin YJ, Ding ZY, et al. Microstructure and electrical properties of new high-entropy rare-earth zirconates. J Alloys Compd 2022, 906: 164331.

DOI Google Scholar

[30]

Wang YF, Yang F, Xiao P. Glass-like thermal conductivities in (La_1-x1Y_x1)₂(Zr_1-x2Y_x2)₂O_7-x2 (x = x₁ + x₂, 0 ≤ x ≤ 1.0) solid solutions. Acta Mater 2012, 60: 7024-7033.

DOI Google Scholar

[31]

Plendl JN, Gielisse PJ. Hardness of nonmetallic solids on an atomic basis. Phys Rev 1962, 125: 828-832.

DOI Google Scholar

[32]

Liu JX, Shen XQ, Wu Y, et al. Mechanical properties of hot-pressed high-entropy diboride-based ceramics. J Adv Ceram 2020, 9: 503-510.

DOI Google Scholar

[33]

Ren XR, Wan CL, Zhao M, et al. Mechanical and thermal properties of fine-grained quasi-eutectoid (La_1-xYb_x)₂Zr₂O₇ ceramics. J Eur Ceram Soc 2015, 35: 3145-3154.

DOI Google Scholar

[34]

Ren XR, Pan W. Mechanical properties of high-temperature- degraded yttria-stabilized zirconia. Acta Mater 2014, 69: 397-406.

DOI Google Scholar

[35]

Quane D. Crystal lattice energy and the Madelung constant. J Chem Educ 1970, 47: 396.

DOI Google Scholar

[36]

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.

DOI Google Scholar

[37]

Cao XQ, Vassen R, Stoever D. Ceramic materials for thermal barrier coatings. J Eur Ceram Soc 2004, 24: 1-10.

DOI Google Scholar

[38]

Schelling PK, Phillpot SR. Mechanism of thermal transport in zirconia and yttria-stabilized zirconia by molecular- dynamics simulation. J Am Ceram Soc 2001, 84: 2997-3007.

DOI Google Scholar

[39]

Chen L, Hu MY, Wu FS, et al. Thermo-mechanical properties of fluorite Yb₃TaO₇ and Yb₃NbO₇ ceramics with glass-like thermal conductivity. J Alloys Compd 2019, 788: 1231-1239.

DOI Google Scholar

[40]

López-Cota FA, Cepeda-Sánchez NM, Díaz-Guillén JA, et al. Electrical and thermophysical properties of mechanochemically obtained lanthanide hafnates. J Am Ceram Soc 2017, 100: 1994-2004.

DOI Google Scholar

[41]

Xu L, Wang HJ, Su L, et al. A new class of high-entropy fluorite oxides with tunable expansion coefficients, low thermal conductivity and exceptional sintering resistance. J Eur Ceram Soc 2021, 41: 6670-6676.

DOI Google Scholar

[42]

Zhao ZF, Xiang HM, Dai FZ, et al. (La_0.2Ce_0.2Nd_0.2Sm_0.2 Eu_0.2)₂Zr₂O₇: A novel high-entropy ceramic with low thermal conductivity and sluggish grain growth rate. J Mater Sci Technol 2019, 35: 2647-2651.

Google Scholar

[43]

Cong LK, Li W, Wang JC, et al. High-entropy (Y_0.2Gd_0.2Dy_0.2Er_0.2Yb_0.2)₂Hf₂O₇ ceramic: A promising thermal barrier coating material. J Mater Sci Technol 2022, 101: 199-204.

Google Scholar

[44]

Zhao ZF, Chen H, Xiang HM, et al. (Y_0.25Yb_0.25Er_0.25Lu_0.25)₂ (Zr_0.5Hf_0.5)₂O₇: A defective fluorite structured high entropy ceramic with low thermal conductivity and close thermal expansion coefficient to Al₂O₃. J Mater Sci Technol 2020, 39: 167-172.

Google Scholar

[45]

Mévrel R, Laizet JC, Azzopardi A, et al. Thermal diffusivity and conductivity of Zr_1-xY_xO_2-x/2 (x = 0, 0.084 and 0.179) single crystals. J Eur Ceram Soc 2004, 24: 3081-3089.

DOI Google Scholar

[46]

Zhao M, Pan W, Wan CL, et al. Defect engineering in development of low thermal conductivity materials: A review. J Eur Ceram Soc 2017, 37: 1-13.

DOI Google Scholar

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Publication history

Received: 20 December 2021

Revised: 13 April 2022

Accepted: 27 April 2022

Published: 25 July 2022

Issue date: August 2022

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (No. 52072301), State Key Laboratory of New Ceramics and Fine Processing Tsinghua University (No. KFZD202102), State Key Laboratory of Solidification Processing (NPU) (No. 2021-TS-08), the China-Poland International Collaboration Fund of the National Natural Science Foundation of China (No. 51961135301), the Fundamental Research Funds for the Central Universities (No. D5000210722), and State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology (No. P2020-009). We would like to acknowledge the Analytical & Testing Center of Northwestern Polytechnical University for the XRD, SEM, and other analyses.

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