Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Crack-healing Behavior and Corrosion Characteristics of SiC Ceramics

SiC 세라믹스의 균열치유거동 및 부식특성

  • Hwang, Jin Ryang (Interdisciplinary Program of Mechanical Engineering Graduate School, Pukyon Nat'l Univ.) ;
  • Kim, Dae Woong (Interdisciplinary Program of Mechanical Engineering Graduate School, Pukyon Nat'l Univ.) ;
  • Nam, Ki Woo (Department of Materials Science and Engineering, Pukyon Nat'l Univ.)
  • 황진량 (부경대학교 학연협동기계공학과) ;
  • 김대웅 (부경대학교 학연협동기계공학과) ;
  • 남기우 (부경대학교 재료공학과)
  • Received : 2013.05.03
  • Accepted : 2013.10.10
  • Published : 2013.10.31
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Abstract

The crack-healing behavior and corrosion resistance of SiC ceramics were investigated. Heat treatments were carried out from $900^{\circ}C$ to $1300^{\circ}C$. A corrosion test of SiC was carried out in acid and alkaline solutions under KSL1607. The results showed that heat treatment in air could significantly increase the strength. The heat-treatment temperature has a profound influence on the extent of crack healing and the degree of strength recovery. The optimum heat-treatment temperature was $1100^{\circ}C$ for one hour at an atmospheric level. In the two kinds of solutions, the cracks in a specimen were reduced with increasing time, and the surface of the crack healed specimen had a greater number of black and white spots. The strength of the corroded cracked specimen was similar to that of the cracked specimen. The strength of the corroded crack healed specimen decreased 47% and 75% compared to that of the crack healed specimen in the acid and alkaline solutions, respectively. Therefore, the corrosion of SiC ceramics is faster in an alkaline solution than in an acid solution.

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References

  1. Ando, K., Ikeda, T., Sato, S., Yao, F. and Kobayasi. A., 1998. A Preliminary Study on Crack Healing Behavior of $Si_{3}N_{4}$/ SiC Composite Cermiacs. Fatigue & Fracture of Engineering Materials & Structures, 21, 119-122.
  2. Giancarli, L., Bonal, J.P., Caso, A., Marois, G. Le., Morley, N.B., Salavy, J.F., 1998. Design Requirements for SiC:SiC Composites Structural Material in Fusion Power Reactor Blankets. Fusion Engineering and Design, 41, 65-171.
  3. Lee, S.K., Ishida, W., Lee, S.Y., Nam, K.W., Ando, K., 2005. Crackhealing Behavior and Resultant Strength Poperties of Silicon Carbide Ceramic. Journal of the European Ceramic Society, 25, 569-576. https://doi.org/10.1016/j.jeurceramsoc.2004.01.021
  4. Nam, K.W., Lee, K.C., Kohyama, A., 2009. A Feasibility Study on the Application of Ultrasonic Method for Surface Crack Detection of SiC/SiC Composite Ceramics. KSNT, 29, 479-484.
  5. Nam, K.W. and Kim, J.S., 2010a. Critical Crack Size of Healing Possibility of SiC Ceramics. Materials Science and Engineering A, 527, 3236-3239. https://doi.org/10.1016/j.msea.2010.02.004
  6. Nam, K.W., Kim, J.S., Park, S.W. 2010b. The High Temperature Strength of SiC Ceramics Based on $SiO_{2}$ Nanocolloidal Employed. Materials Science and Engineering A, 527, 5400-5404. https://doi.org/10.1016/j.msea.2010.05.055
  7. Nam, K.W., Kim, J.S., Park, S.W., 2010c. Crack-Healing Behavior and Bending Strength Properties of SiC Ceramics Based on the Type of Additive $SiO_{2}$ Employed, International Journal of Modern Physics B, 24, 2869-2874. https://doi.org/10.1142/S0217979210065775
  8. Nam, K.W., Kim, J.W., Hinoki, T., Kohyama, A., Murai, J., Murakami, T. 2011a. Application of Untrasonic Inspection to Characterization of Advanced SiC/SiC Composites. Journal of Nuclear Materials, 417, 353-355. https://doi.org/10.1016/j.jnucmat.2010.12.076
  9. Nam, K.W., Moon, C.K. Seo, I.S., 2011b. A Fundamental Study for the Crack Healing of SiC Ceramics and SiCf/ SiC Composite Ceramics. Journal of Ceramic Processing Research, 12, 646-649.
  10. Raffray, A.R., Jones, R., Aeill, G., Billone, C., Giancarli, L., Golfer, H., Hasegawa, A., Katoh, Y., Kohyama, A., Nishio, S., Riccardi, B., Tillack, M.S., 2001. Design and Material Issues for High Performance SiCf/SiC-based Fusion Cower Cores. Fusion Eng. Des., 55, 55-95. https://doi.org/10.1016/S0920-3796(01)00181-8
  11. Saddow, S.E., Agarwal, A., 2004. Advances in Silicon Carbide Processing and Applications. Artech House, Inc., Boston.
  12. Sembokuya, H., Kubouchi, M., Oshida, Y., Tsuda, K., 2002. Corrosion Behavior of Alumina or Silicon Carbide Filled Epoxy Resin Immersed in Alkaline Solution", Journal of Network Polymer (Japan), 23, 72-80.
  13. Snead, L.L., Jones, R.H., Kohyama, A., Fenici, P., 1996. Status of Silicon Carbide Composites for fFsion. J. Nucl. Mater., 233-237, 26-36. https://doi.org/10.1016/S0022-3115(96)00318-2
  14. Sydow, U., Schneider, M., Herrmann, M., Kleebe, H.J., Michaelis, A., 2010. Electrochemical Corrosion of Silicon Carbide Ceramics. Pt.1: Electrochemical Investigation of Sintered Silicon Carbide (SSiC). Materials and Corrosion, 61, S.657-664.
  15. Takahashi, K., Uchiide, K., Kimura, Y., Nakao, W., Ando, K., 2007. Threshold Stress for Crack Healing of Mullite Reinforced by SiC Whiskers and SiC Particles and Resultant Fatigue Strength at the Healing Temperature. J. Am. Ceram. Soc., 90, 2159-2164. https://doi.org/10.1111/j.1551-2916.2007.01726.x