Xingshun Teng; Zifan Zhao; Enjin Liu; Yiwang Bao; Jianyu Li; Peng Wu; Xiaoli Shi; Yang Yang; Kaiye Xiao; Jing Feng

doi:10.1016/j.exm.2026.100026

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Extreme Materials ›› 2026, Vol. 2 ›› Issue (2) : 100026. DOI: 10.1016/j.exm.2026.100026

Xingshun Teng ^a ,
Zifan Zhao ⁺ ,
Enjin Liu ^b ,
Yiwang Bao ^a ,
Jianyu Li ^a ,
Peng Wu ^a ,
Xiaoli Shi ^a ,
Yang Yang ^c ,
Kaiye Xiao ^c ,
Jing Feng ^a

作者信息 +

SrTa₂O₆: A new thermal barrier coating material with amorphous-like thermal conductivity and ultra-low oxygen-ion conductivity

Xingshun Teng ^a ,
Zifan Zhao ⁺ ,
Enjin Liu ^b ,
Yiwang Bao ^a ,
Jianyu Li ^a ,
Peng Wu ^a ,
Xiaoli Shi ^a ,
Yang Yang ^c ,
Kaiye Xiao ^c ,
Jing Feng ^a

Author information +

文章历史 +

Abstract

In the pursuit of low thermal conductivity is an enduring challenge that driving research in thermal barrier coating (TBC) materials. It has become a general consensus that thermal conductivity can be reduced by enhancing compositional complexity and introducing microstructural defects. However, these approaches inevitably increase the technological complexity to synthesize materials and degrades the oxygen barrier capability of the coatings. Therefore, synergistically optimizing the thermal conductivity and oxygen resistance of TBC materials remains a critical issue. Herein, a TBC candidate material SrTa₂O₆ with amorphous-like thermal conductivity and ultra-low oxygen-ion conductivity is presented. The phase composition, microstructure, mechanical and thermal properties, and oxygen barrier capability of SrTa₂O₆ were investigated comprehensively. Notably, the Young's modulus, shear modulus and bulk modulus of SrTa₂O₆ is 207, 86, and 115 GPa respectively, which is similar to those of yttria-stabilized zirconia (YSZ). The Vickers hardness is comparable to YSZ at 8.9 ± 0.1 GPa. The coefficient of thermal expansion (CTE) of SrTa₂O₆ is 10.8 × 10⁻⁶/K at 1200 ℃, which is close to that of YSZ. Attributed to the strong intrinsic phonon-phonon scattering arising from the oxygen vacancies introduced by nonstoichiometric ratios of Sr²⁺ and Ta⁵⁺, and the large difference in the interatomic bonding between Sr-O and Ta-O, SrTa₂O₆ exhibits amorphous-like thermal conductivity characteristics with the increment of temperature. The thermal conductivity of SrTa₂O₆ ranges from 1.69 to 2.12 W·m^-1·K^-1 at 25-900 ℃, which is lower than most known thermal barrier materials, such as YSZ and rare earth tantalate. Moreover, SrTa₂O₆ exhibits ultra-low oxygen-ion conductivity of 2.07 × 10⁻⁵ S·cm⁻¹ at 900 ℃, which is three orders of magnitude lower than that of the state of art TBC material 8YSZ (3.47 ×10⁻² S·cm^-1). This work not only proves the application aspect of SrTa₂O₆ for TBC material, but also points out an avenue to balance the thermal conductivity and oxygen barrier ability of TBCs.

Key words

SrTa₂O₆ / Thermal barrier coatings / Mechanical properties / Thermal properties / Oxygen-ion conductivity

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Xingshun Teng, Zifan Zhao, Enjin Liu, 等. [J]. Extreme Materials. 2026, 2(2): 100026 https://doi.org/10.1016/j.exm.2026.100026

Xingshun Teng, Zifan Zhao, Enjin Liu, et al. SrTa₂O₆: A new thermal barrier coating material with amorphous-like thermal conductivity and ultra-low oxygen-ion conductivity[J]. Extreme Materials. 2026, 2(2): 100026 https://doi.org/10.1016/j.exm.2026.100026

参考文献

列表( 原文顺序 | 文献年度倒序 | 文中引用次数倒序 ) 可视化分析

[1]	Padture N.P., Science 296(2002) 280-284 (doi:10.1126/science.1068609). 本文引用 [1]

[2]	Chen Z., Lai X., Liang Y., Qu L., Tian Z., Li Bin,. Extrem Mater. 1 ( 2025) 9-37, doi:10.1016/j.exm.2024.12.001. 本文引用 [1]

[3]	Clarke D.R.. Sur. Coat. Technol. 163-164 ( 2003) 67-74, doi:10.1016/S0257-8972(02)00593-5. 本文引用 [1]

[4]	Xie E., Chen G., Wang S., Zou Y., Zhang J., Wang Y., Zhao Q., Wang J., Ouyang J., Jia D., Zhou Y., Small 21 ( 2024) 2404567, doi:10.1002/smll.202404567. 本文引用 [1]

[5]	Clarke D.R., Phillpot S.R.,. Mater. Today 8 ( 2005) 22-29, doi:10.1016/S1369-7021(05)70934-2. 本文引用 [1]

[6]	Yang K., Li F., Jiang L., Li Y., Jiang T., Wang N., Pan Y., Zhan T., Aerosp. Sci. Technol. 168 ( 2026) 111021, doi:10.1016/j.ast.2025.111021. 本文引用 [1]

[7]	Che J., Liu X., Wang X., Zhang Q., Liang G., Zhang S., Acta Mater. 237 ( 2022) 118162, doi:10.1016/j.actamat.2022.118162. 本文引用 [1]

[8]	Zhao Q., Chen G., Wang S., Zou Y., Xie E., Peng Z., Yao J., Ouyang J., Wang Y., Jia D., Zhou Y., Small 21 ( 2025) 2508247, doi:10.1002/smll.202508247. 本文引用 [3]

[9]	Han Yi, Liu X., Zhang Q., Huang M., Li Y., Pan W., Zong P., Li L., Yang Z., Feng Y., Zhang P., Wan C.. Nat. Commun. 13 ( 2022) 2871, doi:10.1038/s41467-022-30260-4. 本文引用 [1]

[10]	Oses C., Toher C., Curtarolo S., Nat. Rev. Mater. 5 ( 2020) 295-309, doi:10.1038/s41578-019-0170-8. 本文引用 [1]

[11]	Xie E., Wang S., Chen G., Zou Y., Zhang J., Wang Y., Zhao Q., Peng Z., Yao J., Ouyang J., Jia D., Zhou Y., Stolyarova V.L. Adv. Powder Mater. 4 ( 2025) 100318, doi:10.1016/j.apmate.2025.100318. 本文引用 [1]

[12]	Schelling P.K., Phillpot S.R., J. Am. Ceram. Soc. 84 ( 2001) 2997-3007, doi:10.1111/j.1151-2916.2001.tb01127.x. 本文引用 [1]

[13]	Wu J., Wei X., Padture N.P., Klemens P.G., Gell M., Garcı´a E., Miranzo P., Osendi M.I., J. Am. Ceram. Soc. 85 ( 2002) 3031-3035, doi:10.1111/j.1151-2916.2002.tb00574.x. 本文引用 [1]

[14]	Feng J., Xiao B., Zhou R., Pan W., Scr. Mater. 68 ( 2013) 727-730, doi:10.1016/j.scriptamat.2013.01.010. 本文引用 [1]

[15]	Feng B., Wang Y., Jia Q., Huang W., Suo H., Ma W. Rare Met, 38 ( 2019) 689-694, doi:10.1007/s12598-019-01286-3. 本文引用 [1]

[16]	Chen L., Hu M., Wang J., Li B., Feng J., Acta Mater. 270 ( 2024) 119857, doi:10.1016/j.actamat.2024.119857. 本文引用 [1]

[17]	Ren G., Zhang H., Che J., Cai H., Hu Y., Hu Q., Ni N., Zhao X., Yang F., Acta Mater. 281 ( 2024) 120362, doi:10.1016/j.actamat.2024.120362. 本文引用 [1]

[18]	Miracle D.B., Senkov O.N., Acta Mater. 122 ( 2017) 448-511, doi:10.1016/j.actamat.2016.08.081. 本文引用 [1]

[19]	Rost C.M., Sachet E., Borman T., Moballegh A., Dickey E.C., Hou D., Jones J.L., Curtarolo S., Maria J., Nat. Commun. 6 ( 2015) 8485, doi:10.1038/ncomms9485. 本文引用 [1]

[20]	Xiang H.M., Xing Y., Dai F.Z., Wang H., Lei S., Miao L., Zhang G., Wang Y., Qi X., Yao L., . J. Adv. Ceram. 10 ( 2021) 57, doi:10.1007/s40145-021-0477-y. 本文引用 [1]

[21]	Jiang B., Yu Y., Cui J., Liu X., Xie L., Liao J., Zhang Q., Huang Y., Ning S., Jia B., Zhu B., Bai S., Chen L., Pennycook S.J., He J., Science 371 ( 2021) 830-834, doi:10.1126/science.abe1292. 本文引用 [1]

[22]	Zhao Z., Xiang H., Dai F., Peng Z., Zhou Y.,. J. Mater. Sci. Technol. 35 ( 2019) 2647-2651, doi:10.1016/j.jmst.2019.05.054. 本文引用 [1]

[23]	Wang J., Chong X., Lv L., Wang Y., Ji X., Yun H., Feng J., . J. Mater. Sci. Technol. 157 ( 2023) 98-106, doi:10.1016/j.jmst.2022.12.027. 本文引用 [1]

[24]	Zhao Z., Chen H., Xiang H., Dai F., Wang X., Peng Z., Zhou Y., J. Mater. Sci. Technol. 35 ( 2019) 2892-2896, doi:10.1016/j.jmst.2019.08.012. 本文引用 [1]

[25]	Gan M., Lai L., Wang J., Wang J., Chen L., He J., Feng J., Chong X., J. Mater. Sci. Technol. 209 ( 2025) 79-94, doi:10.1016/j.jmst.2024.05.015. 本文引用 [2]

[26]	Chen P., Xiao P., Li Z., Li Y., Li J., Surf. Coat. Technol. 402 ( 2020) 126329, doi:10.1016/j.surfcoat.2020.126329. 本文引用 [2]

[27]	Bernard B., Quet A., Bianchi L., Schick V., Joulia A., Malié A., Rémy B., Therm. J. Therm. Spray. Technol.. 26 ( 2017) 1025-1037, doi:10.1007/s11666-017-0584-z. 本文引用 [2]

[28]	Rabiei A., Acta Mater. 48 ( 2000) 3963-3976, doi:10.1016/S1359-6454(00)00171-3. 本文引用 [1]

[29]	Dong H., Yang G.J., Li C.X., Luo X.T., Li C.J., J. Am. Ceram. Soc. 97 ( 2014) 1226-1232 https://doi.org/1226-1232,10.1111/jace.12868. 本文引用 [1]

[30]	Zhu W., Zhang Z.B., Yang L., Zhou Y.C., Wei Y.G., Mater. Des. 146 ( 2018) 180-193, doi:10.1016/j.matdes.2018.03.019. 本文引用 [1]

[31]	Zhao Q., Wang S., Chen G., Sun Y., Zou Y., Xie E., Peng Z., Yao J., Ouyang J., Wang Y., Jia D., Zhou Y., Adv. Opt. Mater. 13 ( 2024) 2401768, doi:10.1002/adom.202401768. 本文引用 [1]

[32]	Vakilifard H., Shahbazi H., Liberati A.C., Saraswathy R.B.N., Lima R.S., Pugh M.D., Moreau C., . J. Therm. Spray. Tech.. 33 ( 2024) 447-470, doi:10.1007/s11666-024-01744-0. 本文引用 [1]

[33]	Wang J., Jin Q., Song J., Zhang D., Xu B., Ren Z., Wang M., Yan S., Sun X., Liu C., Chong X., Feng J., J. Adv. Ceram. 12 ( 2023) 2087-2100, doi:10.26599/JAC.2023.9220811. 本文引用 [1]

[34]	Gan M., Chong X., Yu W., Xiao B., Feng J., J. Am. Ceram. Soc. 106 ( 2023) 3103-3115, doi:10.1111/jace.18988. 本文引用 [1]

[35]	Yang J., Qian X., Pan W., Yang R., Li Z., Han Y., Zhao M., Huang M., Wan C., Adv. Mater.. 31 ( 2019) 1808222, doi:10.1002/adma.201808222. 本文引用 [1]

[36]	Post J.E., Bish D.L., Mod. Powder Diffr. 20 ( 1989) 277-308. 本文引用 [1]

[37]	Krautkrämer J., Krautkrämer H., GmbH, Berlin, Germany, Ultrasonic Testing of Materials, 4th edition, Springer-Verlag, Berlin Heidelberg, 1990. 本文引用 [1]

[38]	Pabst W., Gregorová E., Tichá G., Elasticity of porous ceramics—A critical study of modulus-porosity relations, J. Eur. Ceram. Soc. 26 ( 2006) 1085-1097, doi:10.1016/j.jeurceramsoc.2005.01.041. 本文引用 [1]

[39]	ASTM C1327-15 Standard Test Method for Vickers Indentation Hardness of Advanced Ceramics, ASTM, 2019. 〈 https://www.astm.org/c1327-15r19.html〉 本文引用 [1]

[40]	Evans A.G., Charles E.A., J. Am. Ceram. Soc. 59 ( 1976) 371-376, doi:10.1111/j.1151-2916.1976.tb10991.x. 本文引用 [1]

[41]	Leitner J., Voňka P., Sedmidubský D., Thermochim. Acta 497 ( 2010) 7-13, doi:10.1016/j.tca.2009.08.002. 本文引用 [1]

[42]	Barin I., Thermochemical Data of Pure Substances, 3rd ed., VCH Verlagsgesellschaft mbH, Weinheim, Germany, 2008. 本文引用 [1]

[43]	Parker W.J., Jenkins R.J.,Butler C.P., J. Appl. Phys. 32 ( 1961) 1679-1984, doi:10.1063/1.1728417. 本文引用 [1]

[44]	Yang J., Pan W., Han Y., Zhao M., Huang M., Wan C., J. Am. Ceram. Soc. 103 ( 2020) 2302-2308, doi:10.1111/jace.16952. 本文引用 [2]

[45]	Mukherjee R., Ghosh B., Saha S., Bharti C., Sinha T., J. Rare Earths 32 ( 2014) 334-342, doi:10.1016/S1002-0721(14)60076-4. 本文引用 [1]

[46]	Wang J., Song J., Jiang C., Yang X., Li J., Zhao Z., Wu P., Chong X., Feng J., Ceram. Int. 50 ( 2024) 26703-26714, doi:10.1016/j.ceramint.2024.04.398. 本文引用 [1]

[47]	Lee E., Park C.H., Shoemaker D.P., Avdeev M., Kim Y.I., J. Solid State Chem.. 191 ( 2012) 232-238, doi:10.1016/j.ceramint.2015.03.112. 本文引用 [1]

[48]	Kim J.Y., Kim Y.I.,. J. Ceram. Soc. Jpn. 123 ( 2015) 419-422, doi:10.2109/jcersj2.123.419. 本文引用 [1]

[49]	Official website of Ottamagation, SrO (Strontium Oxide) Sputtering Target. 〈 https://ottamagation.com/sputtering-targets/sro/〉 本文引用 [1]

[50]	Liu B., Liu Y., Zhu C., Xiang H., Chen H., Sun L., Gao Y., Zhou Y., J. Mater. Sci. Technol.. 35 ( 2019) 833-851, doi:10.1016/j.jmst.2018.11.016. 本文引用 [1]

[51]	Zhang S., Wang X., Zhang C., Xiang H., Li Y., Fang C., Li M., Wang H., Zhou Y., J. Adv. Ceram.. 13 ( 2024) 373-387, doi:10.26599/JAC.2024.9220862. 本文引用 [3]

[52]	Zhang S., Zhang J., Wang X., Xiang H., Fang C., Xie W., Zhou Y., J. Adv. Ceram.. 14 ( 2025) 9221100, doi:10.26599/JAC.2025.9221100. 本文引用 [2]

[53]	Wu P., Hu M., Chen L., Chen W., Chong X., Gu H., Feng J., Materialia 4 ( 2018) 478-486, doi:10.1016/j.mtla.2018.11.006. 本文引用 [2]

[54]	Ren K., Wang Q., Shao G., Zhao X., Wang Y., Scr. Mater.. 178 ( 2020) 382-386, doi:10.1016/j.scriptamat.2019.12.006. 本文引用 [1]

[55]	Wang J., Chong X., Zhou R., Feng J., Scr. Mater.. 126 ( 2017) 24-28, doi:10.1016/j.scriptamat.2016.08.019.

[56]	Chen L., Hu M., Wu P., Feng J., J. Am. Ceram. Soc. 102 ( 2019) 4809-4821, doi:10.1111/jace.16328. 本文引用 [1]

[57]	Cahill D.G., Watson S.K., Pohl R.O., Phys. Rev. B 46 ( 1992) 6131-6140, doi:10.1103/PhysRevB.46.6131. 本文引用 [1]

[58]	Anderson O.L., J. Phys. Chem. Solids 24 ( 1963) 909-917, doi:10.1016/0022-3697(63)90067-2. 本文引用 [1]

[59]	Agne M.T., Hanus R., Snyder G.J., Energy Environ. Sci. 11 ( 2018) 609-616, doi:10.1039/C7EE03256K. 本文引用 [1]

[60]	Zhao Z., Ruan Z., Li R., Yan S., Sun X., Liu C., Zhang D., Xu B., Ren Z., Wang M., Li J., Tian J., Jiang Y., Feng J., Zhou Y.,. J. Mater. Sci. Technol.. 205 ( 2025) 315-326, doi:10.1016/j.jmst.2024.02.089. 本文引用 [2]

[61]	Yang J., Qian X., Pan W., Yang R., Li Z., Han Y., Zhao M., Huang M., Wan C., Adv. Mater.. 31 ( 2019) 1808222, doi:10.1002/adma.201808222. 本文引用 [1]

[62]	Braun J.L., Rost C.M., Lim M., Giri A., Olson D.H., Kotsonis G.N., Stan G., Brenner D.W., Maria J.P., Hopkins P.E., Adv. Mater.. 30 ( 2018) 1805004, doi:10.1002/adma.201805004. 本文引用 [1]

[63]	Stanek C.R., Minervini L., Grimes R.W., J. Am. Ceram. Soc. 85 ( 2002) 2792-2798, doi:10.1111/j.1151-2916.2002.tb00530.x. 本文引用 [1]

[64]	Che J., Liu X., Wang X., Zhang Q., Liang G., Zhang S., Acta Mater. 237 ( 2022) 118162, doi:10.1016/j.actamat.2022.118162.

[65]	Wang J., Zeng Y., Chong X., Zhang M., Jin Q., Sun Y., Tang X., Wu P., Feng J., J. Adv. Ceram.. 13 ( 2024) 2051-2067, doi:10.26599/JAC.2024.9221000. 本文引用 [2]

[66]	Wang J., Jin Q., Wu P., Zhao Z., Ge Z., Chong X., Feng J., Acta Mater. 283 ( 2025) 120523, doi:10.1016/j.actamat.2024.120523. 本文引用 [3]

The authors gratefully acknowledge the ﬁnancial support from the National Natural Science Foundation of China under grant No. 52302065, the National Key Research and Development Program of China under grant No. 2023YFB3711200, Academician (Expert) Workstation of Yunnan Province Program under grant No. 202305AF150005, the National Key Laboratory of Particle Transport and Separation Technology under grant No. WZKF-2024-5, China Postdoctoral Science Foundation under grant No. 2025M770153, Xingdian Talent Support Program of Yunnan Province under grant No. XDYCQNRC20230143, and the 10th Young Elite Scientists Sponsorship Program by CAST.