The goal of this study is to understand the role of the interface developed during R7T7 glass alteration. This glass has been leached in two different aqueous media (pure water, silica rich water and phosphorous rich water). The lixiviation tests have been optimized to assess the role of the alteration layer developed on the surface of the glass. The solution and the solid have been characterized by ICP-MS and TEM/X-EDS respectively. The results put in evidence that a complex alteration layer is formed. Its texture, structure and chemistry are discussed with respect to the evolution of the solution during the tests. The alteration layer is always present on the surface of the glass and is considered to control (at short time) diffusion of the different species through the layer. Further study must be undertaken to assess the evolution and the stability of the interface for longer time periods.
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R. Bonniaud, N. Jacquet-Francillon and C. Sombret, Nucl. Chem. Waste Management, 1, 3 (1980).
A. Jouan, C. Ladirat and J. P. Moncouyoux, in Advances in Ceramics, Nuclear Waste Management II, edited by D.E. Clark, W.B. White and A.J. Machiels, (1986) pp. 105–116.
W.L. Bourcier, ANL 9417, Argonne National Laboratory Reports, 1994.
F.Delage F., Ghaleb D., Dussossoy J.L., Chevallier O. and Vernaz E., J. of Nucl. Mat., 190 (1992).
F. Pacaud, N. Jacquet-Francillon, A. Terki and C. Fillet, in Scientific Basis for Nuclear Waste Management XII (Elsevier science publishers, New York, 1989), pp. 105–120.
A. Gauthier A, PhD thesis, University of Poitiers, 1999.
J.I. Kim, in Handbook on the Physics and Chemistry of the Actinides, edited by A. J. Freeman and C. Keller (1986) 567.
B. Grambow, in Scientific Basis for Nuclear Waste Management VIII, (Elsevier science publishers, New York, 1985) pp. 15–21.
S. Gin, N. Godon, J.P. Mestre, E.Y. Vernaz and D. Beaufort, Applied Geochem., 9, 255 (1994).
P. Van Inseghem and B. Grambow in Scientific Basis for Nuclear Waste Management XI, edited by M.J. Apted (Elsevier science publishers, New York, 1988), pp. 631–639.
S. A. Caroll, J. Bruno, J.C. Petit J.C. and J. C. Dran, Radiochim. Acta, 58-59, 245 (1992).
A. Gauthier, P. Lecoustumer, M. Motelica and O.F.X Donard, Waste Management, 20, 8 (2000).
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Gauthier, A., Le Coustumer, P. & Thomassin, J.H. Nature and Effect of the Alteration Layer During Nuclear Waste Glass Dissolution. MRS Online Proceedings Library 713, 134 (2001). https://doi.org/10.1557/PROC-713-JJ13.4