Influence of the structure of the starting powders on the physicomechanical properties of 8YSZ ceramics

Keywords

stabilized zirconium dioxide, 8YSZ, solid oxide fuel cells, structure, mechanical strength, electrolytes.

Cite as

Horda R. V., Polishko І. О., Brodnikovskyi Ye. М., Brodnikovskyi D. М., Lysunenko N. О., Kovalenko L. L., Vasylyev О. D., and Chechel О. V. Influence of the structure of the starting powders on the physicomechanical properties of 8YSZ ceramics. Physicochemical Mechanics of Materials. 2025. 61(5), 044-048.

https://doi.org/10.15407/pcmm2025.05.044

Abstract

The electrolyte materials of solid oxide fuel cells, made of the developed 8YSZ powder and its analogue manufactured by Tosoh (Japan) were compared. It was found that under the same manufacturing conditions, ceramics from the developed powder demonstrated higher strength and ionic conductivity. Thus, samples sintered at 1400°C made from the developed and foreign powders, with a total porosity of 2.5% and 4%, have an electrical conductivity of 2.75∙10^–3 and 1.23∙10^–3 S/cm, respectively.

References

1. Z. Du, X. M. Zeng, Q. Liu, A. Lai, Sh. Amini, A. Miserez, Ch. A. Schuh, and Ch. L. Gan, “Size effects and shape memory properties in ZrO2 ceramic micro- and nano-pillars,” Scripta Materialia, 101, 40-43 (2015). https://doi.org/10.1016/j.scriptamat.2015.01.013
2. Y. Wang, Y. Bai, T. Yuan, H. Y. Chen, Y. X. Kang, W. J. Shi, X. L. Song, and B. Q. Li “Failure analysis of fine-lamellar structured YSZ based thermal barrier coatings with sub-micro/nano-grains,” Surf. and Coat. Technol., 319, 95-103 (2017). https://doi.org/10.1016/j.surfcoat.2017.03.055
3. Q. Li, H. Zhang, R. Liu, Bo Liu, D. Li, L. Zheng, J. Liu, T. Cui, and В. Liu, “Nanosize effects assisted synthesis of the high-pressure metastable phase in ZrO2,” Nanoscale, 8, Is. 4, 2412-2417 (2015). https://doi.org/10.1039/C5NR07503C
4. A. Hagen, A. Winiwarter, H. Langnickel, and G. Johnson, “SOFC operation with real biogas,” Fuel Cells, 17, Is. 6, 854-861 (2017). https://doi.org/10.1002/fuce.201700031
5. J. Fergus, R. Hui, X. Li, D. Wilkinson, and J. Zhang (eds.), Solid Oxide Fuel Cells. Materials Properties and Performance, CRC Press, Boca Raton (2019).
6. J. Molenda, K. Swierczek, and W. Zajac, “Functional materials for the IT-SOFC,” J. of Power Sources, 173, Is. 2, 657-670 (2007). https://doi.org/10.1016/j.jpowsour.2007.05.085
7. J. A. Kilner, and R. J. Brook, “A study of oxygen ion conductivity in doped nonstoichiometric oxides,” Solid State Ionics, 6, 237-252 (1982). https://doi.org/10.1016/0167-2738(82)90045-5
8. R. I. Grosso, and E. N. S. Muccillo, “Sintering, phase composition and ionic conductivity of zirconia scandia ceria,” J. of Power Sources, 233, 6-13 (2013). https://doi.org/10.1016/j.jpowsour.2013.01.140
9. M. A. Laguna-Bercero, S. J. Skinner, and J. A. Kilner, “Performance of solid oxide electrolysis cells based on scandia stabilised zirconia,” J. of Power Sources, 192, 126-131 (2009). https://doi.org/10.1016/j.jpowsour.2008.12.139
10. M. Liu, C. R. He, W. G. Wangn, and J. X. Wangn, “Synthesis and characterization of 10Sc1XeSZ powders prepared by a solid-liquid method for electrolyte-supported solid oxide fuel cells,” Ceram. Int., 40, 5441-5446 (2014). https://doi.org/10.1016/j.ceramint.2013.10.129
11. Ye. Brodnikovskyi, N. McDonald, I. Polishko, D. Brodnikovskyi, I. Brodnikovska, M. Brychevskyi, L. Kovalenko, O. Vasylyev, A. Belous, and R. Steinberger-Wilckens, “Properties of 10Sc1CeSZ-3.5YSZ (33-, 40-, 50-wt.%) composite ceramics for SOFC application,” Materials Today: Proc., 6, Is. 2, 26-35 (2019). https://doi.org/10.1016/j.matpr.2018.10.071
12. I. Brodnikovska, N. Korsunska, L. Khomenkova, Yu. Polishchuk, M. Brychevskyi, Y. Brodnikovskyi, D. Brodnikovskyi, I. Polishko, and O. Vasylyev, “The investigation of 10Sc1CeSZ structure transformation and ionic conductivity,” Materials Today: Proc., 50, 487-491 (2022). https://doi.org/10.1016/j.matpr.2021.11.299
13. A. Borger, P. Supancic, and R. Danzer, “The ball on three balls test for strength testing of brittle discs – stress distribution in the disc,” J. of Europ. Ceram. Soc., 22, 1425-1436 (2002). https://doi.org/10.1016/S0955-2219(01)00458-7
14. R. Danzer, W. Harrer, and P. Supancic, “The ball on three balls test-strenght and failure analysis of different materials,” J. of Europ. Ceram. Soc., 27, 1481-1485 (2007). https://doi.org/10.1016/j.jeurceramsoc.2006.05.034
15. V. A. Dubok, M. I. Kabanova, M. A. Orlovskaya, P. F. Ovchinnikov, G. P. Matsarenko, L. N. Radionova, V. A. Kotlyarov, and V. V. Lapsheva, “The influence of vibration processing of powders on the sinterability and mechanical properties of ZrO2-based ceramics,” Poroshkovaya Metallurgiya [in Russian], Is. 4, 31-36 (1990). https://doi.org/10.1007/BF00797226
16. M. I. Kabanova, and V. A. Dubok. “Phase and chemical changes during sintering of partially stabilized zirconium dioxide,” Poroshkovaya Metallurgiya [in Russain], Is. 5, 85-89 (1992). https://doi.org/10.1007/BF00796257