The Science & Technology
of Glass
Cambridge - Monday 4th to
Wednesday 6th September 2017



Abdelmoumene Djeridi
<a_djeridi@univ-boumerdes.dz>

article posted 02 August 2017


PHD student, Research Unit for Materials, Processes and Environment, University M' Hamed Bouguara of Boumerdes, Boumerdes, 35000, Algeria.
Process engineer, DP-SONATRAC, Algeria .


Mössbauer spectroscopic study of iron phosphate glass for radioactive waste storage
A. Djeridi1*, N. Kamel2, A. Guittoum2, A. Benmounah1, D. Moudir2, S. Kamariz2, Y. Mouheb2

Detailed characterization was carried out on an iron phosphate glass waste form containing 20 wt.% of Ce-rich complex nuclear waste mixture. The Fe3+/Fe ratio of this waste loaded iron phosphate glass was investigated using Mössbauer spectroscopy, which reveals the presence of iron cations in two different oxidation states (Fe2+ & Fe3+) and all Fe2+ occupied the octahedral coordination state, while some Fe3+ occupied the tetrahedral coordination state and the rest occupied the octahedral coordination state. With the addition of Fe2O3 to the glass, the P—O—P bonds are replaced by P—O—Fe2+ and/or P—O—Fe3+ bonds, which are more chemically durable. The measured properties of the waste loaded glass comply with the characteristics of both pure iron phosphate glass and literature

Institutions:

1 Research Unit for Materials, Processes and Environment, University M' Hamed Bouguara of Boumerdes, Boumerdes, 35000, Algeria.
2 Algiers Nuclear Research Centre, Division of Nuclear Techniques, 2. Bd Frantz Fanon, P.O. Box: 399, Alger-RP, Algiers, Algeria.