Oxidation state variation under beta-irradiation in an iron-bearing soda lime glass system

Stéphanie Rossano 1 Liliane Jean-Soro 2 Bruno Boizot 3 Francois Farges 4 Eric D. van Hullebusch 1 J. Labanowski 5 L. Gouzin 2 R. Combes 2 Jorge Linares 6 J.C. Swarbrick 7 M. Harfouche 8
1 G2I - Géomatériaux et géologie de l'ingénieur
2 LGE - Laboratoire Géomatériaux et Environnement
3 LSI - Laboratoire des Solides Irradiés
4 MP - Minéralogie, Pétrologie
5 LCME - Laboratoire de Chimie et Microbiologie de l'Eau
6 GEMAC - Groupe d'Etude de la Matière Condensée
7 ESRF - European Synchrotron Radiation Facility
8 SLS-PSI - The Swiss Light Source (SLS)
Abstract : The effect of ionizing radiation on glasses in the system SiO2-CaO-Na2O-Fe2O3 is investigated as a function of iron concentration or / and irradiation dose by a pre-edge analysis at the iron K-edge. While reduction phenomenon is clearly observed for large irradiation doses (5 C), the effect of irradiation for intermediate doses is more challenging to interpret. Comparison between X-ray absorption measurements, colorimetry results and Electron Paramagnetic Resonance measurements suggest that iron environment may be modified without the ions being reduced.
Keywords : XAFS Iron Glass Irradiation
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Conference papers
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Stéphanie Rossano, Liliane Jean-Soro, Bruno Boizot, Francois Farges, Eric D. van Hullebusch, et al.. Oxidation state variation under beta-irradiation in an iron-bearing soda lime glass system. 14th International Conference on X-Ray Absorption Fine Structure (XAFS14), Jul 2009, Camerino, Italy. pp.012194, ⟨10.1088/1742-6596/190/1/012194⟩. ⟨hal-00512619⟩

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