한국재료학회지 (Korean Journal of Materials Research)

  • 제33권10호
  • /
  • Pages.385-392
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  • 2023
  • /
  • 1225-0562(pISSN)
  • /
  • 2287-7258(eISSN)
한국재료학회 (Materials Research Society of Korea)
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연소합성법을 이용한 방사성폐기물 고화체 Hollandite 분말 합성

Synthesis of Hollandite Powders as a Nuclear Waste Ceramic Forms by a Solution Combustion Synthesis

  • 정충환 (한국원자력연구원 재료안전기술연구부) ;
  • 정수지 (호서대학교 화학공학과)
  • Choong-Hwan Jung (Materials Safety Technology Research Division, Korea Atomic Energy Research Institute) ;
  • Sooji Jung (Department of Chemical Engineering, Hoseo University)
  • 투고 : 2023.08.08
  • 심사 : 2023.08.29
  • 발행 : 2023.10.27
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초록

A solution combustion process for the synthesis of hollandite (BaAl2Ti6O16) powders is described. SYNROC (synthetic rock) consists of four main titanate phases: perovskite, zirconolite, hollandite and rutile. Hollandite is one of the crystalline host matrices used for the disposal of high-level radioactive wastes because it immobilizes Sr and Lns elements by forming solid solutions. The solution combustion synthesis, which is a self-sustaining oxi-reduction reaction between a nitrate and organic fuel, generates an exothermic reaction and that heat converts the precursors into their corresponding oxide products in air. The process has high energy efficiency, fast heating rates, short reaction times, and high compositional homogeneity. To confirm the combustion synthesis reaction, FT-IR analysis was conducted using glycine with a carboxyl group and an amine as fuel to observe its bonding with metal element in the nitrate. TG-DTA, X-ray diffraction analysis, SEM and EDS were performed to confirm the formed phases and morphology. Powders with an uncontrolled shape were obtained through a general oxide-route process, confirming hollandite powders with micro-sized soft agglomerates consisting of nano-sized primary particles can be prepared using these methods.

키워드

과제정보

This work was supported financially by the Korea Atomic Energy Research Institute R&D program with a contract number of 524480-23.

참고문헌

  1. K. S. Chun, KAERI/RR-584/86 (1986).
  2. S. H. Lee, K. S. Chun and E. K. Lim, Nucl. Eng. Technol., 7, 213 (1975).
  3. K. S. Chun, J. Korean Nucl. Soc., 11, 231 (1979).
  4. K. S. Chun, KAERI/293/AR-53/79 (1979).
  5. T. A. Bernadzikowski, J. S. Allender, D. E. Gordon, T. H. Gould, J. A. Stone and C. F. Westberry, Am. Ceram. Soc. Bull., 62, 1364 (1983).
  6. W. F. Merritt, Nucl. Technol., 32, 88 (1977).
  7. M. J. Plodinec, J. Non-Cryst. Solids, 84, 206 (1986).
  8. B. C. Bunker, J. Non-Cryst. Solids, 87, 226 (1986).
  9. B. P. Mcgrail, J. Am. Ceram. Soc., 67, 463 (1984).
  10. P. Taylor, Am. Ceram. Soc. Bull., 65, 1513 (1986).
  11. M. Yamane and Y. Nakao, Yogyo-Kyokai-Shi, 87, 327 (1979).
  12. G. J. Mccarthy, Nature, 273, 216 (1978).
  13. A. E. Ringwood, V. M. Oversby, S. E. Kesson, W. Sinclair, N. Ware, W. Hibberson and A. Major, Nucl. Chem. Waste Manage., 2, 287 (1981).
  14. A. E. Ringwood, S. E. Kesson, N. G. Ware, W. O. Hibberson and A. Major, Geochem. J., 13, 141 (1979).
  15. A. E. Ringwood, S. E. Kesson, N. G. Ware, W. O. Hibberson and A. Major, Nature, 278, 219 (1979).
  16. L. A. Chick, L. R. Pederson, G. D. Maupin and J. L. Bates, in Proceedings of the Fifth Annual Conference on Fossil Energy Materials (Oak Ridge, TN, May 14-16, 1991), pp. 117-127, ORNL/FMP-91/1, comp. N. C. Cole and R. R. Judkins, Martin Marietta Energy Systems, Inc., Oak Ridge Natl. Lab., September 1991.
  17. J. J. Kingsley, K. Suresh and K. C. Patil, J. Mater. Sci., 25, 1305 (1990).
  18. P. Ravindranathan and K. C. Patil, J. Mater. Sci., 22, 3261 (1987).
  19. L. R. Pederson, L. A. Chick and G. J. Exarhos, US Patent 5114702 (1992).
  20. J. J. Kingsley and L. R. Pederson, Mater. Lett., 18, 89 (1993).
  21. J. J. Kingsley and K. C. Patil, Mater. Lett., 6, 427 (1988).
  22. N. J. Hess, G. D. Maupin, L. A. Chick, D. S. Sunberg, D. E. McCreedy and T. R. Armstrong, J. Mater. Sci., 29, 1873 (1994).
  23. J. J. Kingsley, K. Suresh and K. C. Patil, J. Solid State Chem., 88, 435 (1990).
  24. P. Ravindranathan, S. Komarneni and R. Roy, J. Mater. Sci. Lett., 12, 369 (1993).
  25. J. J. Kingsley, L. A. Chick, G. W. Coffey, D. E. McCready and L. R. Pederso, MRS Online Proc. Libr., 271, 113 (1992).
  26. W. Lutze and R. C. Ewing, Radioactive waste forms for the future, p.233, Netherlands, North Holland (1988).
  27. A. E. Ringwood, V. M. Oversby, S. E. Kesson, W. Sinclair, N. Ware, W. Hibberson and A. Major, Nucl. Chem. Waste Manage., 2, 287 (1981).
  28. S. R. Jain, K. C. Adiga and V. R. Pai Vernekar, Combust. Flame, 40, 71 (1981).