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Fabrication and oxidation resistance of mullite/yttrium silicate multilayer coatings on C/SiC composites

Abstract

A tri-layer coating of mullite/Y2Si2O7/(70wt%Y2Si2O7+30wt%Y2SiO5) was prepared on carbon fiber reinforced silicon carbide (C/SiC) composite substrate through dip-coating route for the sake of improving oxidation resistance of C/SiC composites. An Al2O3–SiO2 sol with high solid content was selected as raw material for mullite, and a slurry of Y2O3 powder filled silicone resin was used to synthesize yttrium silicate. The microstructure, phase composition, and oxidation resistance of the coating were investigated. The as-fabricated coating shows high density and favorable bonding to C/SiC substrate. After oxidation at 1400 and 1500 °C for 30 min under static air, the flexural strengths of coated C/SiC composite were both increased by ~30%. The desirable thermal stability and the further densification are responsible for excellent oxidation resistance. With the additional help of compatible thermal expansion coefficients among substrate and sub-layers in coating, the coated composite retained 111.2% of original flexural strength after 12 times of thermal shock in air from 1400 °C to room temperature. The carbothermal reaction at 1600 °C between free carbon in C/SiC substrate and rich SiO2 in mullite resulted in severe frothing and desquamation of coating and obvious degradation in oxidation resistance.

References

  1. Kumar P, Srivastava VK. Tribological behaviour of C/C–SiC composites—A review. J Adv Ceram 2016, 5: 1–12.

    Article  Google Scholar 

  2. Naslain R. Design, preparation and properties of non-oxide CMCs for application in engines and nuclear reactors: An overview. Compos Sci Technol 2004, 64: 155–170.

    Article  Google Scholar 

  3. Ma Q-S, Liu H-T, Pan Y, et al. Research progress on the application of C/SiC composites in scramjet. J Inorg Mater 2013, 28: 247–255.

    Article  Google Scholar 

  4. Li W, Chen ZH. Pore geometry of 3D-Cf/SiC composites by mercury intrusion porosimetry. Ceram Int 2009, 35: 747–753.

    Article  Google Scholar 

  5. Qian Y, Zhang W, Ge M, et al. Frictional response of a novel C/C–ZrB2–ZrC–SiC composite under simulated braking. J Adv Ceram 2013, 2: 157–161.

    Article  Google Scholar 

  6. Kousaalya AB, Kumar R, Packirisamy S. Characterization of free carbon in the as-thermolyzed Si–B–C–N ceramic from a polyorganoborosilazane precursor. J Adv Ceram 2013, 2: 325–332.

    Article  Google Scholar 

  7. Lodhe M, Babu N, Selvam A, et al. Synthesis and characterization of high ceramic yield polycarbosilane precursor for SiC. J Adv Ceram 2015, 4: 307–311.

    Article  Google Scholar 

  8. Xiang Y, Li W, Wang S, et al. Oxidation behavior of oxidation protective coatings for PIP–C/SiC composites at 1500 °C. Ceram Int 2012, 38: 9–13.

    Article  Google Scholar 

  9. Xiang Y, Li W, Wang S, et al. Ablative property of ZrC–SiC multilayer coating for PIP–C/SiC composites under oxy-acetylene torch. Ceram Int 2012, 38: 2893–2897.

    Article  Google Scholar 

  10. Huang J-F, Li H-J, Zeng X-R, et al. Yttrium silicate oxidation protective coating for SiC coated carbon/carbon composites. Ceram Int 2006, 32: 417–421.

    Article  Google Scholar 

  11. Argirusis C, Damjanović T, Borchardt G. Yttrium silicate coating system for oxidation protection of C/C–Si–SiC composites: Electrophoretic deposition and oxygen self-diffusion measurements. J Eur Ceram Soc 2007, 27: 1303–1306.

    Article  Google Scholar 

  12. Aparicio M, Durán A. Preparation and characterization of 50SiO2–50Y2O3 sol–gel coatings on glass and SiC(C/SiC) composites. Ceram Int 2005, 31: 631–634.

    Article  Google Scholar 

  13. Zheng X, Du Y, Xiao J, et al. Celsian/yttrium silicate protective coating prepared by microwave sintering for C/SiC composites against oxidation. Mat Sci Eng A 2009, 505: 187–190.

    Article  Google Scholar 

  14. Bernardo E, Parcianello G, Colombo P. Novel synthesis and applications of yttrium silicates from a silicone resin containing oxide nano-particle fillers. Ceram Int 2012, 38: 5469–5474.

    Article  Google Scholar 

  15. Liu J, Zhang L, Hu F, et al. Polymer-derived yttrium silicate coatings on 2D C/SiC composites. J Eur Ceram Soc 2013, 33: 433–439.

    Article  Google Scholar 

  16. Torrey JD, Bordia RK. Processing of polymer-derived ceramic composites coatings on steel. J Am Ceram Soc 2008, 91: 41–45.

    Article  Google Scholar 

  17. Liu J, Zhang L, Liu QM, et al. Polymer-derived SiOC–barium–strontium aluminosilicate coatings as an environmental barrier for C/SiC composites. J Am Ceram Soc 2010, 93: 4148–4152.

    Article  Google Scholar 

  18. Ma Q, Cai L. Fabrication of Y2Si2O7 coating and its oxidation protection for C/SiC composites. Transactions of Nonferrous Metals Society of China 2017, 27: 390–396.

    Article  Google Scholar 

  19. Aparicio M, Durán A. Yttrium silicate coatings for oxidation protection of carbon–silicon carbide composites. J Am Ceram Soc 2000, 83: 1351–1355.

    Article  Google Scholar 

  20. Zeng K, Ma Q, Cai L. Fabrication of mullite coating and its oxidation protection for carbon fiber reinforced SiC composites. Key Eng Mater 2016, 697: 476–480.

    Article  Google Scholar 

  21. Ma Q, Cai L. Preparation and anti-oxidation mechanism of mullite/yttrium silicate coatings on C/SiC composites. J Wuhan Univ Technol-Mat Sci Edit 2016, 31: 1284–1288.

    Article  Google Scholar 

  22. Huang J-F, Li H-J, Zeng X-R, et al. Oxidation resistant yttrium silicates coating for carbon/carbon composites prepared by a novel in-situ formation method. Ceram Int 2007, 33: 887–890.

    Article  Google Scholar 

  23. Lee NK, Fox DS, Bansal NP. Rare earth silicate environmental barrier coatings for SiC/SiC composites and Si3N4 ceramics. J Eur Ceram Soc 2005, 25: 1705–1715.

    Article  Google Scholar 

  24. Sun Z, Li M, Zhou Y. Thermal properties of single-phase Y2SiO5. J Eur Ceram Soc 2009, 29: 551–557.

    Article  Google Scholar 

  25. Huang JF, Li HJ, Zeng XR, et al. A new SiC/yttrium silicate/glass multi-layer oxidation protective coating for carbon/carbon composites. Carbon 2004, 42: 2356–2359.

    Article  Google Scholar 

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Acknowledgements

The authors are grateful to the financial supports from the Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province, and the Science Innovation Foundation of Shanghai Academy of Spaceflight Technology (No. SAST2015043).

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Correspondence to Qingsong Ma.

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Ma, Q., Cai, L. Fabrication and oxidation resistance of mullite/yttrium silicate multilayer coatings on C/SiC composites. J Adv Ceram 6, 360–367 (2017). https://doi.org/10.1007/s40145-017-0248-y

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  • DOI: https://doi.org/10.1007/s40145-017-0248-y

Keywords

  • oxidation resistance
  • thermal shock resistance
  • coatings
  • mullite
  • yttrium silicate
  • C/SiC composites