Composites Research

The Korean Society for Composite Materials (한국복합재료학회)
권호 표지
DOI QR코드

DOI QR Code

Characterizations on the Thermal Insulation of SiC Coated Carbon-Carbon Composites

탄화규소로 코팅된 탄소-탄소 복합재료의 단열 특성

  • Received : 2019.10.11
  • Accepted : 2020.03.06
  • Published : 2020.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

This study investigates the characterization on the thermal insulation properties of silicon carbide coating on the Cf-C composites. The silicon carbide coatings by chemical vapor deposition on the C/C composites are prepared to evaluate thermal resistance. Firstly, we perform the basic insulation test by thermal shock at 1350℃ in air on the C/C composite and SiC-coated C/C composite. We also performed the burner tests on the surface of the composites at high temperatures such as 1700 and 2000℃, and the weight change after burner tests are measured. The damages on the surface of C/C composite and SiC-coated composite are observed. As a result, the SiC coating is beneficial to protect the C/C composite from high temperature even though damages such as defoliation, crack and voids are observed during burner test at 2000℃.

본 논문에서는 탄화규소로 코팅된 탄소-탄소복합재료의 단열 특성을 고찰하였다. 탄소-탄소 복합재료 상에 탄화규소를 화학증착법(CVD)법으로 코팅하였다. 먼저 탄화규소로 코팅한 복합재와 코팅되지 않은 복합재에 대해, 공기 중에서 1350℃의 온도를 급작스럽게 부가하였을 때의 단열특성을 서로 비교하는 연구를 수행하였다. 또한 본 연구에서는 최대 1700℃ 및 2000℃의 온도에 복합재의 표면을 노출시키는 고온 버너실험을 수행하였다. 버너실험 전, 후의 무게를 측정하여 무게변화를 고찰하였다. 고온 버너실험 후 탄소-탄소 복합재 및 탄화규소로 코팅된 복합재의 손상여부를 비교, 고찰하였다. 그 결과 2000℃의 온도에 노출 시 탄화규소 코팅재에서 박리, 균열, 공동 등의 결함손상들이 발견되었으나, 고온으로부터 탄소-탄소 복합재를 보호하는데 효과적이었다.

Keywords

References

  1. Manocha, L.M., "High Performance Carbon-carbon Composites", Sadhana, Vol. 28, 2003, pp. 349-358. https://doi.org/10.1007/BF02717143
  2. Devi, G.R., and Rao, K.R., "Carbon-Carbon Composites - An Overview", Defence Science Journal, Vol. 43, 1993, pp. 369-383. https://doi.org/10.14429/dsj.43.4291
  3. Smeacetto, F., Ferraris, M., Salvo, M., Ellacott, S.D., Ahmed, A., Rawlings, R.D., and Boccaccini, A.R., "Protective Coatings for Carbon Bonded Carbon Fibre Composites", Ceramics International, Vol. 34, 2008, pp. 1297-1301. https://doi.org/10.1016/j.ceramint.2007.03.012
  4. Bacos, M.P., "Carbon-carbon Composites : Oxidation Behavior and Coatings Protection", Journal de Physique IV, Vol. 3, 1993, pp. C7 1895-C7 1903.
  5. McKee, D.W., "Oxidation Behavior and Protection of Carbon/carbon Composites", Carbon, Vol. 25, 1987, pp. 551-557. https://doi.org/10.1016/0008-6223(87)90197-7
  6. Luthra, K.L., "Oxidation of Carbon/carbon Composites-a Theoretical Analysis", Carbon, Vol. 26, 1988, pp. 217-224. https://doi.org/10.1016/0008-6223(88)90040-1
  7. Smeacetto, F., Salvo, M., and Ferraris, M., "Oxidation Protective Multilayer Coatings for Carbon-carbon Composites", Carbon, Vol. 40, 2002, pp. 583-587. https://doi.org/10.1016/S0008-6223(01)00151-8
  8. Bennett, A., "Properties of Thermal Barrier Coatings", Materials Science and Technology, Vol. 2, 1986, pp. 257-261. https://doi.org/10.1179/mst.1986.2.3.257
  9. Zhu, Q., Qiu, X., and Ma, C., "Oxidation Resistant SiC Coating for Graphite Materials," Carbon, Vol. 37, 1999, pp. 1475-1484. https://doi.org/10.1016/S0008-6223(99)00010-X
  10. Lee, K.S., Sihn, I.C., Lim, B.J., and Lim, K.H., "Macroscopic Wear Behavior of C/C and C/C-SiC Composites Coated with Hafnium Carbide," Journal of the Korean Ceramic Society, Vol. 52, 2015, pp. 429-434. https://doi.org/10.4191/kcers.2015.52.6.429
  11. Cheng, L., Xu, Y., Zhang, L., and Yin, X., "Preparation of an Oxidation Protection Coating for c/c Composites by Low Pressure Chemical Vapor Deposition", Carbon, Vol. 38, 2000, pp. 1493-1498. https://doi.org/10.1016/S0008-6223(00)00086-5
  12. Delhaes, P., "Chemical Vapor Deposition and Infiltration Processes of Carbon Materials", Carbon, Vol. 40, 2002, pp. 641-657. https://doi.org/10.1016/S0008-6223(01)00195-6
  13. Veltri, R.D., and Galasso, F.S., "Composite Silicon Carbide Coatings for Carbon-carbon Materials", U.S. Patent 4,476,178, 1984.
  14. Kim, H.M., Shim, K.B., Lee, J.M., Lee, H.I., and Choi, K., "Thermodynamic Analysis on the Chemical Vapor Deposition Process of Ta-C-H-Cl System," Journal of Ceramic Processing Research, Vol. 19, No. 6, 2018, pp. 519-524. https://doi.org/10.36410/JCPR.2018.19.6.519
  15. Wang, H., and Hu, X., "Surface Properties of Ceramic Laminates Fabricated by Die Pressing," Journal of the American Ceramic Society, Vol. 79, 1996, pp. 553-556. https://doi.org/10.1111/j.1151-2916.1996.tb08167.x