| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Brackx, Emmanuelle
CEA Marcoule
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2023Corium materials characterizations through electron microscopy and X-ray diffraction
- 2023Study of the Crystallization in a Glass-Ceramic Sealcitations
- 2023Study of the Crystallization in a Glass-Ceramic Sealcitations
- 2022CORIUM MATERIAL ANALYSIS BY EPMA AND DIFFRACTIONS METHODS
- 2021Chemical interaction between uranium dioxide, boron carbide and stainless steel at 1900 °C — Application to a severe accident scenario in sodium cooled fast reactorscitations
- 2019ANALYTICAL APPROACH TO MATERIALS CHARACTERISATION IN FUTURE NUCLEAR REACTORS (GENERATION IV)
- 2018Study of prototypical corium UZrO from quenching, by a multi-scale approach
- 2017Thermodynamic investigation of the Cr-O-U and Cr-O-Zr systems
- 2017molybdenum behaviour during u-al research reactor spent fuel dissolution
- 2017Quantification of hypo eutectic b-c-fe-o under severe accident condition in nuclear material by epma
- 2016Compaction of porous metal oxide microspheres a multi-scale approach
- 2016Experimental contribution to the corium thermodynamic modelling – The U–Zr–Al–Ca–Si–O systemcitations
- 2016quantification by epma of glass for nuclear application
- 2015Experimental investigation and thermodynamic modelling of the in-vessel corium for severe accident studies in PWR reactors
- 2015Experimental investigation and thermodynamic modelling of the in-vessel corium for severe accident studies in PWR reactors
- 2015Experimental study and thermodynamic modelling of corium mixtures Application to severe accidents in Pressurized Water Reactors
- 2013Analytical approach to usic measurement by electron probe microanalysis
- 2011Quantification of boron by epma in nuclear glass
Places of action
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conferencepaper
quantification by epma of glass for nuclear application
Abstract
The confinement of high-level radioactive waste from spent nuclear fuel reprocessing is a key issue in the nuclear fuel cycle. In France, waste storage concept is based on four containment barriers including respectively glass matrix for radioactive waste immobilization, a primary stainless steel canister, a thick carbon steel overpack and finally a host rock. Numerous researches are carried out on nuclear glass to improve the properties of the confinement material. Depending on glass composition and process parameters crystals can appear in the matrix (Fig. 1). The characterization of these phases (range of micrometer size) and of the glass surrounding them is of great importance for a proper understanding of the glass properties and its long term performance. The composition of these phases can be characterized by means of electron microprobe (CAMECA SX 100) with a standard resolution electron beam. In order to improve the quantification of such small dimension inclusions, the use of FEG-EPMA CAMECA SX FiveFE has been tested to determine their chemical composition which is well adapted to micrometer range analysis. The improved analytical resolution obtained with the FEG-EPMA made it possible to optimize the analysis of the micro particles, and to determine their chemical composition. The nature of the crystal phases was confirmed by EBSD electronic diffraction analysis coupled with SEM and approved the crystalline phases of apatite and cerianite measured by EPMA. To study in a more precise way the glass matrix near crystals, thin lamellas were prepared by ionic cut by FIB (Fig. 2). A microstructural analysis by TEM was performed to characterize the glass matrix and the inclusions and the chemical composition was settled by EDS quantification. This thin lamella were analyzed by EPMA in transmission with the microprobe CAMECA SX 100 to get a more complete analysis of elements, including especially some light elements such as Boron. The results of TEM EDS and EPMA analyses in transmission are self-consistent and confirm a peculiar enrichment in Zr of the glass matrix near crystals.