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Hollandite-rich Ceramic Melts for the Immobilisation of Cs

Published online by Cambridge University Press:  01 February 2011

M. L. Carter ,
E. R. Vance  and
H. Li
M. L. Carter
Affiliation:
Australian Nuclear Science and Technology Organisation, New Illawarra Rd, Lucas Heights, NSW 2234, Australia School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
E. R. Vance
Affiliation:
Australian Nuclear Science and Technology Organisation, New Illawarra Rd, Lucas Heights, NSW 2234, Australia
H. Li
Affiliation:
Australian Nuclear Science and Technology Organisation, New Illawarra Rd, Lucas Heights, NSW 2234, Australia
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Abstract

Ceramic wasteforms designed to be processed by melting in air has been developed to immobilise Cs-rich wastes. Detailed characterisation electron microscopy is presented on versions of these melted materials which are rich in Cr-, Ni-, Zn or Co- substituted titanate hollandites and which have PCT-B normalised Cs leachate concentrations of < 0.2 g/L. To assist in understanding the general crystal chemistry of titanate hollandites, this study also investigates the solubility limits of Cs in single-phase hollandite BaxCsy(M3+)2x+yTi8–2x-yO16 where M = Cr and BaxCsy(M2+)x+y/2Ti8-x-y/2O16 formulations where M = Zn, Co or Ni.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 807: Symposium Scientific Basis for Nuclear Waste Management XXVII , 2003 , 249
Copyright
Copyright © Materials Research Society 2004

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References

REFERENCES

1. Bart, F., Sounihac, S, Dussossoy, J.L., Bonnetier, A., Environmental Issues and Waste Management Technologies in the Ceramic and Nuclear Industries VI, edited by Spearing, D.R., Smith, G.L. and Putnam, R.L., Ceramic Transactions 119 (Am. Ceram. Soc, Westerville, OH, 2001).Google Scholar
2. Kesson, S.E., Radioact. Waste Manage. Nucl. Fuel Cycle 2, 53 (1983).Google Scholar
3. Carter, M. L., Vance, E. R., Mitchell, D. R. G., Hanna, J. V., Zhang, Z. and Loi, E., J. Mater. Res. 17, 2578 (2002).Google Scholar
4. Day, R.A., “Report to CEA on Phase Composition and microstructure of Cold Crucible melted Synroc-C” ANSTO report to Commissariat à l'Energie Atomique (CEA), (December 1995).Google Scholar
5. Kudrin, A.V., Nikonov, B.S., and Stefanovsky, S.V., in Scientific Basis fior Nuclear Waste Management XX edited by Gray, W.J. and Triay, I.R. (Mat. Res. Soc. Proc. 465, Pittsburgh, PA, 1997) pp. 417–423.Google Scholar
6. Day, R.A., La Robina, M., Moricca, S., Eddowes, T., Blagojevic, N., and Carter, M.L., presented at HLW and Pu Immobilization meeting, INSTN, Saclay, April 22–23, 1999 (unpublished).Google Scholar
7. Hart, K.P., Vance, E. R., Day, R. A., Begg, B.D., Angel, P.J., and Jostsons, A., in Scientific Basis for Nuclear Waste Management XIX, edited by Murphy, W.M. and Knecht, D.A. (Mater. Res. Sec. Synp. 412, Pittsburgh, PA 1996) pp. 41–47.Google Scholar
8. Carter, M.L., Vance, E.R. and Li, H., presented at 105th Annual meeting of The American Ceramic Society, April 27–30, 2003 (unpublished).Google Scholar
9. Jostsons, A., Vance, E.R. and Mercer, D., presented at Global '95 Conference, Versailles, France, 11–14 September, 1995 (unpublished).Google Scholar
10. Ringwood, A.E., Kesson, S.E., Reeve, K.D., Levins, D.M. and Ramm, E.J., ‘Synroc’, in Radioactive Waste Forms for the Future, edited by Lutze, W. and Ewing, R.C., (North-Holland, New York, 1988) p. 233.Google Scholar
11. Cheary, R.W., Acta. Cryst. B43, 28 (1987).Google Scholar
12. Kesson, S.E. and White, T.J., Proc. Roy. Soc. Lond. A408, 73 (1986).Google Scholar
13. PCT is based on the ASTM Designation: C 1285–97 [Determining Chemical Durability of Nuclear Hazardous and Mixed Wastes].Google Scholar