Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Christophe Valot"'
Autor:
Christophe Valot, Martin Giraud, Cendrine Gatumel, Elodie Pascal, Guillaume Bernard-Granger, Carine Ablitzer, Loïc Mailhan, Timo Larsson, Henri Berthiaux
Publikováno v:
Powder Technology
Powder Technology, Elsevier, 2019, 345, pp.300-310. ⟨10.1016/j.powtec.2019.01.027⟩
Powder Technology, 2019, 345, pp.300-310. ⟨10.1016/j.powtec.2019.01.027⟩
Powder Technology, Elsevier, 2019, 345, pp.300-310. ⟨10.1016/j.powtec.2019.01.027⟩
Powder Technology, 2019, 345, pp.300-310. ⟨10.1016/j.powtec.2019.01.027⟩
International audience; The flow properties of alumina powder mixtures have been investigated using shear tests on a powder rheometer. The evolution of the flow index, ffc, as a function of the powder mixture composition show that all the points form
Autor:
Magaly Tribet, Romain Vauchy, Christophe Valot, Christophe Jégou, M. Magnin, Sylvain Peuget, Zeynep Talip
Publikováno v:
Journal of Nuclear Materials. 499:88-97
In this study, Raman spectroscopy technique was implemented to characterize un-irradiated MIMAS (MIcronized - MASter blend) MOX fuel samples with average 7 wt.% Pu content and different damage levels, 13 years after fabrication, one year after therma
Publikováno v:
Journal of Applied Crystallography. 50:1782-1790
Plutonium–americium mixed oxides, Pu1−y Am y O2−x , with various Am contents (y = 0.018, 0.077, 0.21, 0.49, 0.80 and 1.00) were studied in situ by high-temperature X-ray diffraction. In this study, the lattice thermal expansion of the six compo
Autor:
M. Magnin, Lydie Berardo, Romain Vauchy, Sylvain Peuget, Zeynep Talip, Christophe Jégou, Christophe Valot
Publikováno v:
Journal of Raman Spectroscopy. 48:765-772
In this study, micro-Raman spectroscopy technique was implemented to characterize an unirradiated homogeneous Gigondas (U0.76Pu0.24)O2+x sample, which had been stored for 30 years at room temperature under air. The impacts of Pu content, deviation fr
Autor:
Philippe J. Valenza, Jean-Christophe Richaud, Renaud C. Belin, Frédéric Adenot, Romain Vauchy, Christophe Valot
Publikováno v:
Applied Materials Today. 3:87-95
High Temperature X-Ray Diffraction (HT-XRD) is a powerful means of performing in situ experiments and provides the opportunity to observe the behavior of materials under the influence of variables such as temperature, pressure and chemical potential
Autor:
Nicolas Clavier, M. Magnin, Christophe Jégou, Jacques Lechelle, Lionel Desgranges, R. Mohun, Guillaume Guimbretière, Romain Vauchy, Nicolas Dacheux, Patrick Simon, Christophe Valot, Florian Duval, Aurélien Canizares
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2015, 374, pp.67-70. ⟨10.1016/j.nimb.2015.08.003⟩
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2015, 374, pp.67-70. ⟨10.1016/j.nimb.2015.08.003⟩
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2015, 374, pp.67-70. ⟨10.1016/j.nimb.2015.08.003⟩
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2015, 374, pp.67-70. ⟨10.1016/j.nimb.2015.08.003⟩
International audience; We have recently evidenced an original Raman signature of alpha irradiation-induced defects in UO2. In this study, we aim to determine whether the same signature also exists in different actinide oxides, namely ThO2 and PuO2.
Autor:
A. Joly, Jean-Christophe Richaud, Christine Guéneau, Renaud C. Belin, E. Epifano, Philippe Martin, Romain Vauchy, Christophe Valot, Florent Lebreton
Publikováno v:
Inorganic Chemistry
Inorganic Chemistry, American Chemical Society, 2017, ⟨10.1021/acs.inorgchem.7b00572⟩
Inorganic Chemistry, 2017, ⟨10.1021/acs.inorgchem.7b00572⟩
Inorganic Chemistry, American Chemical Society, 2017, ⟨10.1021/acs.inorgchem.7b00572⟩
Inorganic Chemistry, 2017, ⟨10.1021/acs.inorgchem.7b00572⟩
International audience; In the frame of minor actinide transmutation, americium can be diluted in UO2 and (U, Pu)O2 fuels burned in fast neutron reactors. The first mandatory step to foresee the influence of Am on the in-reactor behavior of transmuta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12ff3d6c286605f8addca634b58a7adf
https://hal-cea.archives-ouvertes.fr/cea-02418708
https://hal-cea.archives-ouvertes.fr/cea-02418708
Autor:
J. Noirot, J.-C. Richaud, Giannina Dottavio, Lionel Desgranges, Yves Pontillon, Renaud C. Belin, Christophe Valot
Publikováno v:
Progress in Nuclear Energy. 72:22-26
During the irradiation of oxide nuclear fuels used in pressurized water reactors, many microstructural modifications occur which affect the fuel performance. This work focuses on the thermodynamic evolution of the fuel under these conditions, with a
Publikováno v:
Materials Science Forum. 681:420-425
UMo-Al specimens are analyzed using X-ray diffraction techniques. One specimen was partially irradiated using a heavy ion beam127I. Another specimen was thermally annealed 2h at 400°C. Those treatments result in the formation of an interaction layer
Publikováno v:
Nuclear Instruments and Methods in Physics Research
Nuclear Instruments and Methods in Physics Research, Elsevier, 2006, 266, ⟨10.1016/j.nimb.2007.10.035⟩
Nuclear Instruments and Methods in Physics Research, 2006, 266, ⟨10.1016/j.nimb.2007.10.035⟩
Nuclear Instruments and Methods in Physics Research, Elsevier, 2006, 266, ⟨10.1016/j.nimb.2007.10.035⟩
Nuclear Instruments and Methods in Physics Research, 2006, 266, ⟨10.1016/j.nimb.2007.10.035⟩
International audience; A new method for the quantitative determination of the total xenon concentration in irradiated nuclear fuel is presented. The SIMS measurement of xenon enables the detection of the gas filling bubbles which are not detected wi