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Zirconolite-Rich Titanate Ceramics for High-Level Actinide Wastes

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Abstract

New diffraction and microstructural data on the incorporation of rare earths, Np and Pu in nominally single-phase zirconolite (CaZrTi207) arepresented. Such data are vital for the crystal-chemical design of zirconolite-rich titanate ceramics of the Synroc family, for the immobilization of up to 30 wt% of actinide wastes from advanced reprocessing/partitioning schemes. Some trial zirconolite-rich ceramics were made with U and Nd simulating tetravalent and trivalent actinides respectively. Somepreliminary results to examine chemical flexibility with regards to variations in waste/precursor are given, for different actinide waste compositions.

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References

  1. A.E. Ringwood, S.E. Kesson, N.G. Ware, W. Hibberson and A. Major, Nature, 278„ 219 (1979).

    Article  CAS  Google Scholar 

  2. E.R. Vance, B.D. Begg, R.A. Day, P.J. Angel, S.S. Moricca and C.A.J. Fisher, in Proc. Austceram 92, edited by M.J. Bannister, CSIRO Publications, Melbourne, Australia, 1992), p.1034.

  3. E.R. Vance, C.J. Bali, R.A. Day, K.L. Smith, M.G. Blackford, B.D. Begg and P.J. Angel, presented at Actinides-93 Conference, Santa Fe, N.M., 1993 (in press).

    Google Scholar 

  4. S.E. Kesson, W.J. Sinclair and A.E. Ringwood, Nucl. Chem. Waste Management, 4, 259 (1983).

    Article  CAS  Google Scholar 

  5. E.R. Vance and D.K. Agrawal, Nucl. Chem. Waste Management, 3, 229 (1982).

    Article  CAS  Google Scholar 

  6. A.E. Ringwood, S.E. Kesson, K.D. Reeve, D.M. Levins and E.J. Ramm, in Radioactive Waste Forms For The Future, edited by W. Lutze and R.C. Ewing, (Elsevier Science Publishers, New York, 1988), p. 223.

  7. T.J. White, Amer. Mineral., 69, 1156 (1984).

    CAS  Google Scholar 

  8. L.J. Morss, in Scientific Basis for Nuclear Waste Management XV, edited by C.G. Sombret, (Materials Research Society, Pittsburgh, PA, 1992), p.275.

  9. E.R. Vance, C.J. Ball, M.G. Blackford, D.J. Cassidy and K.L. Smith, J. Nucl. Mater., 175, 58 (1990).

    Article  CAS  Google Scholar 

  10. L.H. Baetsle, NEA/P&T Report No.3, Role and Influence of Partitioning and Transmutation on the Management of Nuclear waste Streams, OECD/NEA (1992).

    Google Scholar 

  11. J.E. Patchett and E.W. Nuffield, Canad. Mineral., 6, 483 (1960).

    CAS  Google Scholar 

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Vance, E.R., Angel, P.J., Begg, B.D. et al. Zirconolite-Rich Titanate Ceramics for High-Level Actinide Wastes. MRS Online Proceedings Library 333, 293–298 (1993). https://doi.org/10.1557/PROC-333-293

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  • DOI: https://doi.org/10.1557/PROC-333-293

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