[HTML][HTML] Thermal air oxidation of UO2: Joint effect of precursor's nature and particle size distribution
A Milena-Pérez, N Rodríguez-Villagra… - Progress in Nuclear …, 2023 - Elsevier
The rate and extent of the air oxidation of UO 2 are of paramount importance due to its
relevance in the management of spent nuclear fuel at dry storage facilities. In particular, the …
relevance in the management of spent nuclear fuel at dry storage facilities. In particular, the …
Evolution of the uranium chemical state in mixed-valence oxides
G Leinders, R Bes, J Pakarinen, K Kvashnina… - Inorganic …, 2017 - ACS Publications
A fundamental question concerning the chemical state of uranium in the binary oxides UO2,
U4O9, U3O7, U3O8, and UO3 is addressed. By utilizing high energy resolution fluorescence …
U4O9, U3O7, U3O8, and UO3 is addressed. By utilizing high energy resolution fluorescence …
Thermodynamic model of the oxidation of Ln-doped UO2
VL Vinograd, AA Bukaemskiy, G Deissmann… - Scientific Reports, 2023 - nature.com
Ln-doped UO2 is often considered as a model system of spent nuclear fuel (SNF) helping to
reveal effects of fission and activation products on its chemical stability. Comparing …
reveal effects of fission and activation products on its chemical stability. Comparing …
Local Structure in U(IV) and U(V) Environments: The Case of U3O7
G Leinders, R Bes, KO Kvashnina… - Inorganic …, 2020 - ACS Publications
A comprehensive analysis of X-ray absorption data obtained at the UL 3-edge for a
systematic series of single-valence (UO2, KUO3, UO3) and mixed-valence uranium …
systematic series of single-valence (UO2, KUO3, UO3) and mixed-valence uranium …
Exploring the impact of temperature and oxygen partial pressure on the spent nuclear fuel oxidation during its dry management
Abstract The management of Spent Nuclear Fuel (SNF) comprises different stages in which
security is demonstrated. Nevertheless, fundamental research can lead to other design …
security is demonstrated. Nevertheless, fundamental research can lead to other design …
New insights into the structural transition from UO 2+ x to U 3 O 7 by quantitative Raman spectroscopy
The study of uranium oxides at different conditions is of paramount importance in the nuclear
field, especially regarding characterization of the spent nuclear fuel behavior in dry storage …
field, especially regarding characterization of the spent nuclear fuel behavior in dry storage …
Polyepitaxial grain matching to study the oxidation of uranium dioxide
Although the principal physical behaviour of a material is inherently connected to its
fundamental crystal structure, the behaviours observed in the real-world are often driven by …
fundamental crystal structure, the behaviours observed in the real-world are often driven by …
Trends in the valence band electronic structures of mixed uranium oxides
The valence band electronic structures of mixed uranium oxides (UO2, U4O9, U3O7, U3O8,
and β-UO3) have been studied using the resonant inelastic X-ray scattering (RIXS) …
and β-UO3) have been studied using the resonant inelastic X-ray scattering (RIXS) …
Oxidation of Micro- and Nanograined UO2 Pellets by In Situ Synchrotron X-ray Diffraction
When in contact with oxidizing media, UO2 pellets used as nuclear fuel may transform into
U4O9, U3O7, and U3O8. The latter starts forming by stress-induced phase transformation …
U4O9, U3O7, and U3O8. The latter starts forming by stress-induced phase transformation …
Quantification of high temperature oxidation of U3O8 and UO2
AM Olsen, IJ Schwerdt, B Richards… - Journal of Nuclear …, 2018 - Elsevier
A response surface design of experiment (DOE) was developed to model crystallographic
changes of UO 2 and α-U 3 O 8 after aging at elevated temperatures in controlled oxygen …
changes of UO 2 and α-U 3 O 8 after aging at elevated temperatures in controlled oxygen …