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Ceramics for the Immobilization of Plutonium and Americium: Current Progress of R&D of the V.G. Khlopin Radium Institute

Published online by Cambridge University Press:  01 February 2011

Evgeniy B. Anderson  and
Boris E. Burakov
Evgeniy B. Anderson
Affiliation:
Laboratory of Applied Mineralogy and Radiogeochemistry, the V.G. Khlopin Radium Institute, 28, 2-nd Murinskiy ave., St. Petersburg, 194021, Russia
Boris E. Burakov
Affiliation:
Laboratory of Applied Mineralogy and Radiogeochemistry, the V.G. Khlopin Radium Institute, 28, 2-nd Murinskiy ave., St. Petersburg, 194021, Russia
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Abstract

Since 1990, the Laboratory of Applied Mineralogy and Radiogeochemistry of the V.G. Khlopin Radium Institute (KRI) has been developing several different types of crystalline host-phases acceptable for the economically feasible and environmentally safe immobilization of actinide wastes. We proposed that ceramics that are based on host phases similar to naturally occurring accessory minerals including zircon, (Zr,Hf,…)SiO4; hafnon, (Hf,Zr,…)SiO4; baddeleyite (monoclinic zirconia), (Zr,Hf,…)O2; tazheranite (cubic zirconia), (Zr,Hf,Ca,Ti,…)O2; garnet, (Ca,Fe,Gd,…)3(Al,Fe,Si,…)5O12; perovskite, (Ca,Gd,…)(Al,Fe,Ti,…)O3, and monazite, (La,Ce,…)PO4, are the most efficient materials for actinide immobilization in deep geological formations. Solid solution of Pu in zirconia, (Zr,Pu)O2, could be used as a ceramic nuclear fuel that is competitive with mixed oxide fuel (MOX). To date, the following crystalline materials doped with 239Pu, 238Pu and 243Am have been successfully synthesized and studied at KRI: zircon; hafnon; cubic and tetragonal zirconia; monazite; aluminate garnet and perovskite. The maximum actinide loading was (in wt.% el.): 239Pu -37; 238Pu-10; 243Am-23. All Pu-Am-doped samples were made in air atmosphere under glove boxes conditions. Polycrystalline (ceramic) materials were made by sintering or melting of sol-gel, co-precipitated hydroxides, oxalates and phosphates or ground oxide precursors; single crystals were grown by a flux method. It was demonstrated that all ceramic samples obtained are characterized by high chemical durability and typical normalized actinide losses in deionized water at 90°C do not exceed 10−2–10−3 g/m2 (without correction for ceramic porosity). However, investigation of long-term behavior of ceramic waste forms requires taking into account the results of accelerated radiation damage study and modeling of ceramic alteration by underground solutions. The principal features of Pu-Am-doped samples obtained so far at KRI and their synthesis conditions are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 807: Symposium Scientific Basis for Nuclear Waste Management XXVII , 2003 , 207
Copyright
Copyright © Materials Research Society 2004

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References

REFERENCES

1. Burakov, B. E., Proc. Intern. Conf. SAFE WASTE'93, 13–18/06/1993, Avignon, France, Vol. 2, 19–28 (1993).Google Scholar
2. Anderson, E.B., Burakov, B. E., Vasiliev, V.G., Proc. Intern. Conf. SAFE WASTE'93, 13–18/06/1993, Avignon, France, Vol. 2, 29–33 (1993).Google Scholar
3. Burakov, B. E., Anderson, E. E., Galkin, B. Ya. et al., Disposal of Weapon Plutonium ed. Merz, E.R. and Walter, C.E., Kluwer Academic Publishers, Dordrecht, 85–89 (1996).Google Scholar
4. Burakov, B.E., Anderson, E.B. et al. Mat. Res. Soc. Symp. Proc, Vol. 412, 33–39 (1996).Google Scholar
5. Burakov, B.E., Anderson, E.B., Shabalev, S.I., S.I., , Defence Nuclear Waste Disposal in Russia ed. Stenhouse, M.J. and Kirko, V.I., Kluwer Academic Publishers, Dordrecht, 59–68 (1998).Google Scholar
6. Burakov, B.E., Anderson, E.B., Proc. 2n Intern. Symp. NUCEF'98, JAERI-Conf.99–004 (Part I), 295–306 (1998).Google Scholar
7. Burakov, B.E., Helean, K.B. et al., Mat. Res. Soc. Symp. Proc., Vol. 506, 95–100 (1998).Google Scholar
8. Burakov, B.E., Strykanova, E.E., Proc Intern. Conf. WASTE MANAGEMENT'98, Tucson, USA, 1–5/03/1998, CD-ROM, http://localhost:6017/html/sess34/34–05/34–05.htm. (1998).Google Scholar
9. Burakov, B.E., Anderson, E.B. et al., Mat. Res. Soc. Symp. Proc., Vol. 556, 55–62 (1999).Google Scholar
10. Burakov, B.E., Anderson, E.B. et al., Mat. Res. Soc. Symp. Proc., Vol. 608, 419–422 (2000).Google Scholar
11. Burakov, B.E., Anderson, E.B., et al., Mat. Res. Soc. Symp. Proc., Vol. 663, 307–313 (2001).Google Scholar
12. Burakov, B. E., Anderson, E.B., CD-ROM Proc 8th Intern. Conf. ICEM'01, 30/09–04/10/2001, Bruges, Belgium, sess. 39 (2001).Google Scholar
13. Burakov, B.E., Anderson, E.B. et al., CD-ROM Proc. Intern. Conf. GLOBAL'01, Paris, France, 9–13/09/2001, paper 006 (2001).Google Scholar
14. Anderson, E.B., Burakov, B.E., CD-ROM Proc. Intern. Conf. GLOBAL'01, Paris, France, 9–13/09/2001, paper 010 (2001).Google Scholar
15. Burakov, B.E., Anderson, E.B., Excess Weapons Plutonium Immobilization in Russia ed. Jardine, J.L., Borisov, G.B., UCRL-ID-138361, Proc. Meeting for Coordination and Review of Work, St. Petersburg, Russia, 1–4/11/1999, 167–179 and 251–252 (2000).Google Scholar
16. Burakov, B.E., Anderson, E.B., Immobilization of Excess Weapons Plutonium in Russia: A Review ofLLNL Contract Work, ed. Jardine, L.J., Borisov, G.B., Proc. Meet, for Coordination and Review of Work, St. Petersburg, Russia, Nov. 13–16, 2000, UCRL-ID-143846, 229–234 (2001).Google Scholar
17. Burakov, B.E., Anderson, E.B., Review of Excess Weapons Disposition: LLNL Contract Work in Russia, ed. Jardine, L.J., Borisov, G.B., proc.3-rd Ann. Meet, for Coordination and Review of LLNL Work, St. Petersburg, Russia, Jan. 14–18, 2002, UCRL-ID-149341, 265–270 (2002).Google Scholar
18. Burakov, B.E., Anderson, E.B. et al., Mat. Res. Soc. Symp. Proc., Vol. 73, 333–336 (2002).Google Scholar
19. Nikolaeva, E.V., Burakov, B.E., Mat. Res. Soc. Symp. Proc., Vol.73, 429–432 (2002).Google Scholar
20. Burakov, B.E., Hanchar, J.M. et al., Radiochimica Acta, 89, 1–3 (2002).Google Scholar
21. Burakov, B., Anderson, E. et al., J. Nucl. Science and Tech., Suppl. 3, 733–736 (2002).Google Scholar