Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-18T08:44:20.444Z Has data issue: false hasContentIssue false
  • English
  • Français

Structural Characterisations of Rare Earth-Rich Glasses for Nuclear Waste Immobilisation

Published online by Cambridge University Press:  01 February 2011

I. Bardez ,
D. Caurant ,
F. Ribot ,
P. Loiseau ,
J. L. Dussossoy ,
F. Villain ,
N. Baffier  and
C. Fillet
I. Bardez
Affiliation:
Commissariat à l'Energie Atomique, Centre d'Etudes de la vallée du Rhône, DIEC/SCDV/LEBM, 30207 Bagnols-sur-Cèze, France Laboratoire de Chimie Appliquée de l'Etat Solide (UMR 7574), ENSCP, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France
D. Caurant
Affiliation:
Laboratoire de Chimie Appliquée de l'Etat Solide (UMR 7574), ENSCP, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France
F. Ribot
Affiliation:
Chimie de la Matière Condensée (UMR 7574), Université Pierre et Marie Curie, 4 place Jussieu, F-75252 Paris Cedex 05, France
P. Loiseau
Affiliation:
Laboratoire de Chimie Appliquée de l'Etat Solide (UMR 7574), ENSCP, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France
J. L. Dussossoy
Affiliation:
Commissariat à l'Energie Atomique, Centre d'Etudes de la vallée du Rhône, DIEC/SCDV/LEBM, 30207 Bagnols-sur-Cèze, France
F. Villain
Affiliation:
Laboratoire de Chimie Inorganique et Matériaux Moléculaires, Université Pierre et Marie Curie, 4 place Jussieu, F-75252 Paris Cedex 05, France
N. Baffier
Affiliation:
Laboratoire de Chimie Appliquée de l'Etat Solide (UMR 7574), ENSCP, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France
C. Fillet
Affiliation:
Commissariat à l'Energie Atomique, Centre d'Etudes de la vallée du Rhône, DIEC/SCDV/LEBM, 30207 Bagnols-sur-Cèze, France
Get access

Abstract

New glassy matrices, able to incorporate new highly concentrated radioactive liquid wastes (HLW), are being studied. Investigations were performed on rare earth-rich glasses, known as very durable matrices. The selected basic glass composition was (wt. %): 51.0 SiO2 – 8.5 B2O3–12.2 Na2O – 4.3 Al2O3 – 4.8 CaO – 3.2 ZrO2 – 16.0 Nd2O3. To determine both the environment around the rare earth in this glass and its evolution according to its concentration (1.3 – 30 wt. % Nd2O3), EXAFS (Extended X-Ray Absorption Fine Structure) spectroscopy at the LIII-edge of neodymium and optical absorption spectroscopy were used. By coupling these two characterisation methods, several hypotheses are proposed about the nature of the rare earth neighbouring in the glass.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 807: Symposium Scientific Basis for Nuclear Waste Management XXVII , 2003 , 157
Copyright
Copyright © Materials Research Society 2004

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Meaker, T. F., Peeler, D. K., Marra, J. M., Pareizs, J. M. and Ramsey, W. G., Mat. Res. Soc. Symp. Proc 465 1281 (1997).Google Scholar
2. Leturcq, G., Berger, G., Advocat, T. and Vernaz, E., Chemical Geology 160, 39 (1999).Google Scholar
3. Michalowicz, A., EXAFS pour le MAC, in “Logiciels pour la Chimie”, eds. Société Française de Chimie, Paris, 102 (1991).Google Scholar
4. Michalowicz, A., J. Phys. IV, France 7 C2–235 (1997).Google Scholar
5. Zabinsky, S. I., Rehr, J. J., Ankudinov, A. and Albers, R. C., Phys. Rev. B. 52, 2995 (1995).Google Scholar
6. Sen, S., J. Non-Cryst. Solids 261, 226 (2000).Google Scholar
7. Gurman, S. J., Newport, R. J. and Oversluizen, M., Phys. Chem. Glasses 33 1, 30 (1992).Google Scholar
8. d'Acapito, F., Mobilio, S., Gastaldo, P., Barbier, D., Santos, L.F., Martins, O. and Almeida, R. M., J. Non-Cryst. Solids 293–295, 118 (2001).Google Scholar
9. Shimizugawa, Y., Qiu, J. R. and Hirao, K., J. Non-Cryst. Solids 222, 310 (1997).Google Scholar
10. Li, L., Li, H., Qian, M. and Strachan, D. M., J. Non-Cryst. Solids 283, 237 (2001).Google Scholar
11. Li, L., Strachan, D. M., Li, H., Davis, L. L. and Qian, M., Ceram. Trans. 107, 131 (2000).Google Scholar
12. Dymnikov, A. A. and Przhevuskii, A. K., J. Non-Cryst. Solids 215, 83 (1997).Google Scholar
13. Gatterer, K., Pucker, G., Jantscher, W., Fritzer, H. P. and Arafa, S., J. Non-Cryst. Solids 231, 189 (1998).Google Scholar
14. Yun, Y. H. and Bray, P. J., J. Non-Cryst. Solids 27, 363 (1978).Google Scholar
15. Larson, E. M., Ellison, A. J. G., Lytle, F. W., Navrotsky, A., Greegor, R. B. and Wong, J., J. Non-Cryst. Solids 130, 260 (1991).Google Scholar
16. Antonio, M. R., Soderholm, L. and Ellison, A. J. G., J. Alloys Compd. 250, 536 (1997).Google Scholar