DOI QR코드

DOI QR Code

Sintering and Characterization of SiC-matrix Composite Including TRISO Particles

TRISO 입자를 포함하는 SiC 복합소결체의 소결 및 특성 평가

  • Lee, Hyeon-Geun (Nuclear Materials Development Division, Korea Atomic Energy Research Institue) ;
  • Kim, Daejong (Nuclear Materials Development Division, Korea Atomic Energy Research Institue) ;
  • Park, Ji Yeon (Nuclear Materials Development Division, Korea Atomic Energy Research Institue) ;
  • Kim, Weon-Ju (Nuclear Materials Development Division, Korea Atomic Energy Research Institue)
  • 이현근 (한국원자력연구원 원자력소재개발부) ;
  • 김대종 (한국원자력연구원 원자력소재개발부) ;
  • 박지연 (한국원자력연구원 원자력소재개발부) ;
  • 김원주 (한국원자력연구원 원자력소재개발부)
  • Received : 2014.07.31
  • Accepted : 2014.09.05
  • Published : 2014.09.30

Abstract

Fully ceramic micro encapsulated (FCM) nuclear fuel is a concept recently proposed for enhancing the stability of nuclear fuel. FCM nuclear fuel consists of tristructural-isotropic (TRISO) fuel particles within a SiC matrix. Each TRISO fuel particle is composed of a $UO_2$ kernel and a PyC/SiC/PyC tri-layer which protects the kernel. The SiC ceramic matrix is created by sintering. In this FCM fuel concept, fission products are protected twice, by the TRISO coating layer and by the SiC ceramic. The SiC ceramic has proven attractive for fuel applications owing to its low neutron-absorption cross-section, excellent irradiation resistivity, and high thermal conductivity. In this study, a SiC-matrix composite containing TRISO particles was sintered by hot pressing with $Al_2O_3-Y_2O_3$ additive system. Various sintering conditions were investigated to obtain a relative density greater than 95%. The internal distribution of TRISO particles within the SiC-matrix composite was observed using an x-ray radiograph. The fracture of the TRISO particles was investigated by means of analysis of the cross-section of the SiC-matrix composite.

Acknowledgement

Supported by : 한국에너지기술평가원 (KETEP)

References

  1. L. L. Snead, K. A. Terrani, F. Venneri, Y. Kim, J. E. Tulenko, C. W. Forsberg, P. F. Peterson, and E. J. Lahoda, "Fully Ceramic Microencapsulated Fuels: A Transformational Technology for Present and Next Generation Reactors-Properties and Fabrication of FCM Fuel," Trans. Am. Nucl. Soc., 104, 668-70 (2011).
  2. K. A. Terrani, J. O. Kiggans, Y. Katoh, K. Shimoda, F. C. Montgomery, B. L. Armstrong, C. M. Parish, T. Hinoki, J. D. Hunn, and L. L. Snead, "Fabrication and Characterization of Fully Ceramic Microencapsulated Fuels," J. Nucl. Mater., 426 [1-3], 268-76 (2012). https://doi.org/10.1016/j.jnucmat.2012.03.049
  3. L. L. Snead, K. A. Terrani, Y. Katoh, C. Silva, J. J. Leonard, and A. G. Perez-Bergquist, "Stability of SiC-matrix Microencapsulated Fuel Constituents at Relevant LWR Conditions," J. Nucl. Mater., 448 [1-3], 389-98 (2014). https://doi.org/10.1016/j.jnucmat.2013.09.056
  4. D. R. Olander, "Nuclear Fuels - Present and Future," J. Nucl. Mater., 389 [1], 1-22 (2009). https://doi.org/10.1016/j.jnucmat.2009.01.297
  5. W. -J. Kim, S. M. Kang, K. H. Park, A. Kohyama, W. -S. Ryu, and J. Y. Park, "Fabrication and Ion Irradiation Characteristic of SiC-Based Ceramics for Advanced Nuclear Energy System(in Korean)," J. Kor. Ceram. Soc., 42 [8], 575-81 (2005). https://doi.org/10.4191/KCERS.2005.42.8.575
  6. Y. Katoh, T. Nozawa, L. L. Snead, K. Ozawa, and H. Tanigawa, "Stability of SiC and Its Composites at High Neutron Fluence," J. Nucl. Mater., 417 [1-3], 400-05 (2011). https://doi.org/10.1016/j.jnucmat.2010.12.088
  7. L. K. L. Falk, "Microstructural Development during Liquid Phase Sintering of Silicon Carbide Ceramics," J. Eur. Ceram. Soc., 17 [8], 983-94 (1997). https://doi.org/10.1016/S0955-2219(96)00198-7
  8. D. H. Kim and C. H. Kim, "Toughening Behavior of Silicon Carbide with Additions of Ytrria and Alumina," J. Am. Ceram. Soc., 73 [5], 1431-34 (1990). https://doi.org/10.1111/j.1151-2916.1990.tb05219.x
  9. E. Gomez, J. Echeberria, I. Iturriza, and F. Castro, "Liquid Phase Sintering of SiC with Additions of $Y_2O_3$, $Al_2O_3$ and $SiO_2$," J. Eur. Ceram. Soc., 24 [9], 2895-903 (2004). https://doi.org/10.1016/j.jeurceramsoc.2003.09.002
  10. J. H. Lee, D. Y. Kim, and Y. W. Kim, "Grain Boundary Cystallization during Furnace Cooling of α-SiC Sintered with $Y_2O_3-Al_2O_3$-CaO," J. Eur. Ceram. Soc., 26 [7], 1267-72 (2006). https://doi.org/10.1016/j.jeurceramsoc.2005.01.050
  11. B. W. Lin, M. Imai, T. Yano, and T. Iseki, "Hot-pressing of ${\beta}$-SiC Powder with Al-B-C Additives," J. Am. Ceram. Soc., 69 [4], C67-68 (1986).
  12. B. R. Zhang, F. Marino, and M. Ferraris, "Liquid-phase Hot-pressing and WC Particle Reinforcement of SiC-Si Composites," J. Eur. Ceram. Soc., 14 [6], 549-55 (1994). https://doi.org/10.1016/0955-2219(94)90126-0
  13. K. Yoshida, M. Imai, and T. Yano, "Processing and Microstructure of Silicon Carbide Fiber-reinforced Silicon Carbide Composite by Hot-pressing," J. Nucl. Mater., 258-63, 1960-65 (1998).
  14. S. Dong, Y. Katoh, and A. Kohyama, "Preparation of SIC/SiC Composite by Hot Pressing, Using Tyranno-SA Fiber as Reinforcement," J. Am. Ceram. Soc., 86 [1], 26-32 (2003). https://doi.org/10.1111/j.1151-2916.2003.tb03272.x
  15. J. G. Kim, E. -S. Kum, D. J. Choi, S. S. Kim, H. L. Lee, Y. W. Lee, and J. Y. Park, "A Study on the CVD Deposition for SiC-TRISO Coated Fuel Material Fabrication(in Korean)," J. Kor. Ceram. Soc., 44 [3], 169-74 (2007). https://doi.org/10.4191/KCERS.2007.44.3.169
  16. G. D. Zhan, R. J. Xie, M. Mitomo, and Y. W. Kim, "Effect of ${\beta}$-to-${\alpha}$ Phase Transformation on the Microstructural Development and Mechanical Properties of Fine-graned Silicon Carbide Ceramics," J. Am. Ceram. Soc., 84 [5], 945-50 (2001). https://doi.org/10.1111/j.1151-2916.2001.tb00773.x
  17. Y. W. Kim, M. Mitomo, and T. Nishimura, "High-temperature Strength of Liquid-phase-sintered SiC with AlN and $Re_2O_3$ (RE = Y, Yb)," J. Am. Ceram. Soc., 85 [4], 1007-09 (2002).
  18. K. A. Terrani, L. L. Snead, and J. C. Gehin, "Microencapsulated Fuel Technology for Commercial Light Water and Advanced Reactor Application," J. Nucl. Mater., 427 [1-3], 209-24 (2012). https://doi.org/10.1016/j.jnucmat.2012.05.021

Cited by

  1. (RE = Sm, Gd, Lu) Additives on Electrical and Thermal Properties of Silicon Carbide Ceramics vol.99, pp.1, 2015, https://doi.org/10.1111/jace.13958