Hostname: page-component-848d4c4894-hfldf Total loading time: 0 Render date: 2024-05-17T12:40:44.472Z Has data issue: false hasContentIssue false
  • English
  • Français

Electrochemical Description of Redox Equilibria in Nuclear Glass

Published online by Cambridge University Press:  15 February 2011

O. Pinet  and
S. Mure
O. Pinet
Affiliation:
CEA, DEN, DTCD, SECM, LDMC, 30207 Bagnols sur Ceze Cedex, France
S. Mure
Affiliation:
CEA, DEN, DTCD, SECM, LDMC, 30207 Bagnols sur Ceze Cedex, France
Get access

Abstract

Glass matrices were selected to immobilize fission products because glass is capable of chemically incorporating a wide spectrum of elements within a single matrix. Some of these elements can be found at different oxidation states. The redox equilibrium constants of multivalent species can be used to develop thermodynamic models for a better description of nuclear glasses. Some of the multivalent species loaded in nuclear glass, such as iron and sulfur, have already been a subject of investigation by conventional glassmakers or geochemists in the earth sciences. Other redox species more specifically related to nuclear glass, including cerium and ruthenium, have also been investigated. These studies have demonstrated the advantages of using electrochemical techniques, voltammetry and potentiometry, to determine the equilibrium constants. Oxygen potential measurements are also particularly suitable for characterizing the redox state of the multivalent dissolved species in molten glass.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1193: Scientific Basis for Nuclear Waste Management XXXIII , 2009 , 315
Copyright
Copyright © Materials Research Society 2009

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

1 Pinet, O., Cachia, J.N., Schuller, S., Deschanel, X., presented at Global 2005, Tsukuba, Japan, 2005.Google Scholar
2 Magnien, V., Neuville, D.R., Cormier, L., Roux, J., Pinet, O. and Richet, P., J. of Nuclear Mater. 352 (1-3), 190–195 (2006).Google Scholar
3 Schreiber, H.D., J. of Geophysical Res., 92, n° B9, 9225–9232 (1987).Google Scholar
4 Baucke, F.G.K. and Duffy, J.A., Physics and Chemistry of Glasses, 35 (1) (1994).Google Scholar
5 Baucke, F.G.K., Sensors 1991, 1155.Google Scholar
6 Wondergem, A. de Best, PhD thesis, Technische Universiteit Eindhoven, 1994.Google Scholar
7 Pinet, O., Phalippou, J., Nardo, C. Di, J. of Non-Crystalline Solids, 352, 5382–5390 (2006).Google Scholar
8 Mysen, B.O., Richet, P. Silicate Glasses and Melts: Properties and Structure, Elsevier, 2005.Google Scholar
9 Pinet, O., Mure, S., J. of Non-Crystalline Solids, 355 (3), 221–227 (2009).Google Scholar
10 Kress, V.C., Carmichael, I.S.E., Contrib. Mineralogy Petrology 108 (82), 82–92 (1991).Google Scholar
11 Schreiber, D., J. of Geophysical Res., 92, n°B9, 9225–9232 (1987).Google Scholar