A5005310044- Nuclear Materials and Properties
- Nuclear reactor physics and engineering
- Fusion materials and technologies
- Radioactive element chemistry and processing
- X-ray Diffraction in Crystallography
- Nuclear materials and radiation effects
- Nuclear Physics and Applications
- Zeolite Catalysis and Synthesis
- Advanced NMR Techniques and Applications
- Chemical Synthesis and Characterization
- High Temperature Alloys and Creep
- Advanced X-ray and CT Imaging
- Nuclear and radioactivity studies
- Advanced Materials Characterization Techniques
- Medical Imaging Techniques and Applications
- Crystal Structures and Properties
- Metal and Thin Film Mechanics
- Intermetallics and Advanced Alloy Properties
- Rare-earth and actinide compounds
- Advanced X-ray Imaging Techniques
- High-pressure geophysics and materials
- Enhanced Oil Recovery Techniques
- Nuclear Engineering Thermal-Hydraulics
- Orthopaedic implants and arthroplasty
- Material Science and Thermodynamics
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2013-2024
CEA Cadarache
2013-2024
Direction des énergies
2008-2020
Lincoln Land Community College
2014
European Synchrotron Radiation Facility
2007-2014
CEA Grenoble
2010-2013
Centre National de la Recherche Scientifique
2004-2006
Institut Néel
2006
Institut Français
2004-2005
IFP Énergies nouvelles
2004-2005
A bent-crystal spectrometer based on the Rowland circle geometry has been installed and tested BM30b/FAME beamline at European Synchrotron Radiation Facility to improve its performances. The energy resolution of allows different kinds measurements be performed, including X-ray absorption spectroscopy, resonant inelastic scattering Raman experiments. simplicity experimental device makes it easily implemented a classical beamline. This improvement in fluorescence detection is particular...
Performances and physical properties of high technology materials are influenced or even determined by their initial microstructure the behavior impurity phases. Characterizing these impurities relations with surrounding matrix is therefore primary importance but it unfortunately often requires a destructive approach, risk misinterpreting observations. The improvement we have done in resolution X-ray diffraction computed tomography combined use an nanoprobe allows non-destructive...
The systematic presence of the ternary phases U 6 Mo 4 Al 43 and UMo 2 20 is reported in a U–Mo/Al interaction layer grown by thermal annealing. This work shows, therefore, low solubility UAl 3 binary phases; it contradicts hypothesis formation (U,Mo)Al solid solutions often admitted literature. Using µ-XAS (micro X-ray absorption spectroscopy) at K edge µ-XRD diffraction), heterogeneity obtained on γ-U 0.85 0.15 /Al diffusion couple has been precisely investigated. phase identified closest...
It is demonstrated that scanning X-ray diffraction tomography of heterogeneous and polycrystalline samples can provide real-space semi-quantitative three-dimensional structural information at a submicrometre spatial resolution. The capabilities this technique are illustrated by the study slice spherical particle consisting UMo core (about 37 µm in diameter) surrounded UMoAl shell (5 thick). allows precise characterization embedded UMo/UMoAl interface where phases α-U (in core), UAl 2 U 6 Mo...
The implantation of He ions in UO 2 polycrystals induces a strain the implanted layer which can be characterized using Laue micro X-ray diffraction (µ-XRD). tensor resulting from ion may not reduced to single out-of-plane component: it also has nonzero shear components. Their strong dependence upon crystal orientation is modeled elasticity theory. This work demonstrates potential µ-XRD for characterizing radiation effects materials.
The dislocation densities and crystallite size distributions in ball-milled fluorides, M F 2 ( = Ca, Sr, Ba Cd), of the fluorite structure type have been determined as a function milling time by X-ray diffraction line-profile analysis. treatment has based on concept contrast to explain strain anisotropy means modified Williamson–Hall Warren–Averbach approaches whole-profile fitting method using physically functions. In most cases, measured calculated patterns are perfect agreement; however,...