한국표면공학회지 (Journal of the Korean institute of surface engineering)

  • 제56권6호
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  • Pages.443-450
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  • 2023
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  • 1225-8024(pISSN)
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  • 2288-8403(eISSN)
한국표면공학회 (The Korean Institute of Surface Engineering)
권호 표지
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환경차폐코팅용 이터븀 실리케이트의 고온 수증기부식 거동

Corrosion Behavior of Ytterbium Silicates in Water Vapor Atmosphere at High Temperature for Environmental Barrier Coating Applications

  • 김민지 (한국세라믹기술원 이천분원 엔지니어링소재센터) ;
  • 최재형 (한국세라믹기술원 이천분원 엔지니어링소재센터) ;
  • 김성원 (한국세라믹기술원 이천분원 엔지니어링소재센터)
  • Min-Ji Kim (Engineering Materials Center, Korea Institute of Ceramic Engineering and Technology) ;
  • Jae-Hyeong Choi (Engineering Materials Center, Korea Institute of Ceramic Engineering and Technology) ;
  • Seongwon Kim (Engineering Materials Center, Korea Institute of Ceramic Engineering and Technology)
  • 투고 : 2023.12.01
  • 심사 : 2023.12.21
  • 발행 : 2023.12.31
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초록

SiC/SiCf CMC is vulnerable to water vapor corrosion at a high temperature of 1500℃. So, EBC (Environmental Barrier Coating) materials are required to protect Si-based CMCs. Ytterbium silicates are reported to have coefficient of thermal expansion (CTE) similar to that of the base material, such as SiC/SiCf CMC. When the EBC are materials exposed to high temperature environment, the interface between ytterbium silicates and SiC/SiCf CMC is not separated, and the coating purpose can be safely achieved. For the perspective of EBC applications, thermally grown oxide (TGO) layer with different CTE is formed by the reaction with water vapor in EBC, which leads to a decrease in life time. In this study, we prepare two types of ytterbium silicates to observe the corrosion behavior during the expose to high temperature and water vapor. In order to observe this behavior, the steam-jet furnace is prepared. In addition, phase formation of these ytterbium silicates is analyzed with microstructures by the before/after steam-jet evaluation at 1500℃ for 100 h.

키워드

과제정보

This work was supported by the Technology Innovation Program (SiC fiber reinforced ceramic composite improved environmental performance developed ceramic coating layer, No. 20011237) funded by the Ministry of Trade, Industry & Energy (MOTIE).

참고문헌

  1. N. P. Padture, Advanced structural ceramics in aerospace propulsion, Nature Materials, 15 (2016) 804-809. https://doi.org/10.1038/nmat4687
  2. D. T. Martin, C. Bennett and T. Hussain, A review on environmental barrier coatings: History, current state of the art and future developments, Journal of the European Ceramic Society, 41 (2021) 1747-1768. https://doi.org/10.1016/j.jeurceramsoc.2020.10.057
  3. F. L. Riley, Structural ceramics: fundamentals and case studies, Cambridge University Press, Cambridge (2000) 190.
  4. C. G. Levi, Emerging materials and processes for thermal barrier systems, Journal of Materials Science, 8 (2004) 77-91. https://doi.org/10.1016/j.cossms.2004.03.009
  5. C. Wang, M. Liu, J. Feng, X. Zhang, C. Deng, K. Zhou, D. Zeng, S. Guo, R. Zhao and S. Li, Water vapor corrosion behavior of Yb2SiO5 environmental barrier coatings prepared by plasma spray-physical vapor deposition, Coatings, 10 (2020) 392.
  6. E. H. Jordan, C. Jiang, M. Gell, The solution precursor plasma spray (SPPS) Process: A Review with Energy Considerations, Journal of Thermal Spray Technology, 24 (2015) 1153-1165. https://doi.org/10.1007/s11666-015-0272-9
  7. A. Keyvani, M. Bahamirian, A. Kobayashi, Effect of sintering rate on the porous microstructural, mechanical and thermomechanical properties of YSZ and CSZ TBC coatings undergoing thermal cycling, Journal of Alloys and Compounds, 727 (2017) 1057-1066. https://doi.org/10.1016/j.jallcom.2017.08.184
  8. J. P. Xu, V. K. Sarin, S. Dixit, S.N. Basu, Stability of interfaces in hybrid EBC/TBC coatings for Si-based ceramics in corrosive environments, International Journal of Refractory Metals and Hard Materials, 49 (2015) 339-349. https://doi.org/10.1016/j.ijrmhm.2014.08.013
  9. E. J. Opila, J. L. Smialek, R. C. Robinson, D. S. Fox, N. S. Jacobson, SiC recession caused by SiO2 scale volatility under combustion conditions: II, thermodynamics and gaseous-diffusion model, Journal of the American Ceramic Society, 82 (1999) 1826-1834. https://doi.org/10.1111/j.1151-2916.1999.tb02005.x
  10. R. A. Golden, K. Mueller, E. J. Opila, Thermochemical stability of Y2Si2O7 in high-temperature water vapor, Journal of the American Ceramic Society, 103 (2020) 4517-4535. https://doi.org/10.1111/jace.17114
  11. E. Bakan, Y. J. Sohn, W. Kunz, H. Klemm, R. Vassen, Effect of processing on high-velocity water vapor recession behavior of Yb-silicate environmental barrier coatings, Journal of the European Ceramic Society, 39 (2019) 1507-1513. https://doi.org/10.1016/j.jeurceramsoc.2018.11.048
  12. R. Vassen, E. Bakan, C. Gatzen, S. Kim, D. E. Mack, O. Cuillon, Environmental barrier coatings made by different thermal spray technologies, Coatings, 9 (2019) 784.
  13. H. Ryu, S. M. Lee, Y. S. Han, K. Choi, G. S. An, S. Nahm, Y. S. Oh, Preparation of crystalline ytterbium disilicate environmental barrier coatings using suspension plasma spray, Ceramics International, 45 (2019) 5801-5807. https://doi.org/10.1016/j.ceramint.2018.12.048
  14. Kang N. Lee, Yb2Si2O7 Environmental barrier coatings with reduced bond coat oxidation rates via chemical modifications for long life, Journal of the American Ceramic Society, 102 (2018) 1507-1521.
  15. K. N. Lee, D. Zhu, R. S. Lima, Perspectives on environmental barrier coatings (EBCs) manufactured via air plasma spray (APS) on ceramic matrix composites (CMCs): A tutorial paper, Journal of Thermal Spray Technology, 30 (2021) 40-58. https://doi.org/10.1007/s11666-021-01168-0