Abstract
Critical dose of X-ray amorphization of the garnet phase Ca1.5Gd0.908Cm0.092Th0.5ZrFe4O12, which is the base of the synthetic ceramics doped with 241Cm (∼2 wt %), was determined. Amorphization occurs at a dose of 1.6 × 1018 α-decay g−1 or 0.17 dpa (displacements per atom). The chemical resistance of the amorphized ceramics to leaching (MCC-1 test) is comparable to that of the initial ceramics. The rates of Cm leaching from the freshly prepared and amorphized ceramics decrease with time and after storage for two weeks amount to 1.4 × 10−3 and 5.8 × 10−3 g m−2 day−1, respectively. Data on thermal restoration of the crystal structure of the ceramics are also presented.
Similar content being viewed by others
References
Baluev, A.V., Galkin, B.Ya., Mityakhina, V.S., and Isupov, V.K., Radiokhimiya, 2000, vol. 42, no. 4, pp. 295–307.
Yudintsev, S.V., Geol. Rudn. Mestorozhd., 2003, vol. 45, no. 2, pp. 172–187.
Hobbs, L.W., Clinard, F.W., Jr., Zinkle, S.J., and Ewing, R.C., J. Nucl. Mater., 1994, vol. 216, pp. 291–321.
Ewing, R.C., Weber, W.J., and Clinard, F.W., Jr., Prog. Nucl. Energy, 1995, vol. 29, no. 2, pp. 63–127.
Clinard, F.W., Jr., Hobbs, L.W., Land, C.C., et al., J. Nucl. Mater., 1982, vol. 105, pp. 248–256.
Mironov, A.S., Cand. Sci. Dissertation, Moscow: Mendeleev Russian Univ. of Chemical Engineering, 2004.
Powder Diffraction File, Swarthmore (Pennsylvania): Int. Centre for Diffraction Data, 1999.
American Society for Testing and Materials (ASTM), Standard Method for Static Leaching of Monolithic Waste Forms for Disposal of Radioactive Waste, West Conshohocken (Pennsylvania), no. C 1220-98.
Lumpkin, G.R. and Ewing, R.C., Phys. Chem. Miner., 1988, vol. 16, pp. 2–20.
Weber, W.J., Wald, J.W., and Matzke, Hj., J. Nucl. Mater., 1986, vol. 138, pp. 196–209.
Utsunomiya, S., Yudintsev, S., and Ewing, R.C., J. Nucl. Mater., 2005, vol. 336, pp. 251–260.
Yudintsev, S.V., Lapina, M.I., Ptashkin, A.G., et al., Mater. Res. Soc. Symp. Proc., 2002, vol. 713, paper no. JJ11.28 (CD version).
Utsunomiya, S., Wang, L.M., Yudintsev, S., and Ewing, R.C., J. Nucl. Mater., 2002, vol. 303, pp. 177–187.
Weber, W.J. and Ewing, R.C., Sci. Compass, 2000, vol. 289, no. 5487, p. 2051.
Weber, W.J. and Ewing, R.C., Mater. Res. Soc. Symp. Proc., 2002, vol. 713, paper no. JJ3.1 (CD version).
Laverov, N.P., Yudintsev, S.V., Yudintseva, T.S., et al., Geol. Rudn. Mestorozhd., 2003, vol. 45, no. 6, pp. 483–513.
Author information
Authors and Affiliations
Additional information
Original Russian Text © A.N. Lukinykh, S.V. Tomilin, A.A. Lizin, T.S. Livshits, 2008, published in Radiokhimiya, 2008, Vol. 50, No. 4, pp. 375–379.
Rights and permissions
About this article
Cite this article
Lukinykh, A.N., Tomilin, S.V., Lizin, A.A. et al. Radiation and chemical resistance of synthetic ceramics based on ferritic garnet. Radiochemistry 50, 432–437 (2008). https://doi.org/10.1134/S1066362208040176
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1066362208040176