Zobrazeno 1 - 10 of 27 pro vyhledávání: '"Xavière Iltis"'
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Akademický článek
Microstructural characteristics of a fresh U(Mo) monolithic mini-plate: Focus on the Zr coating deposited by PVD
Autor: Xavière Iltis, Doris Drouan, Thierry Blay, Isabelle Zacharie, Catherine Sabathier, Claire Onofri, Christian Steyer, Christian Schwarz, Bruno Baumeister, Jérôme Allenou, Bertrand Stepnik, Winfried Petry
Publikováno v: Nuclear Engineering and Technology, Vol 53, Iss 8, Pp 2629-2639 (2021)
Within the frame of the EMPIrE test, four monolithic mini-plates were irradiated in the ATR reactor. In two of them, the monolithic U(Mo) foil had been PVD-coated with Zr before the plate manufacturing. Extensive microstructural characterizations wer
Externí odkaz: https://doaj.org/article/02f13e5e3a0f4cbcaa59f5936492eec0
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3
The effect of oxygen partial pressure on dislocation creep in polycrystalline uranium dioxide
Autor: Xavière Iltis, Jean-Baptiste Parise, Thomas Helfer, Philippe Garcia, Guy Antou, Audrey Miard
Publikováno v: Journal of the European Ceramic Society
Journal of the European Ceramic Society, Elsevier, 2021, 41 (3), pp.2124-2133. ⟨10.1016/j.jeurceramsoc.2020.09.005⟩
Journal of the European Ceramic Society, 2021, 41 (3), pp.2124-2133. ⟨10.1016/j.jeurceramsoc.2020.09.005⟩
We report a set of compression test experiments carried out on sintered uranium dioxide at 1500 ° C, at constant strain rates and under controlled oxygen partial pressures. The macroscopic data indicate an initial strain hardening stage followed by
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8ecabfd1086be23f5f46a53cd72006f
https://doi.org/10.1016/j.jeurceramsoc.2020.09.005
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4
Short communication: Spark plasma sintering as an innovative process for nuclear fuel plate manufacturing
Autor: Hervé Palancher, Mathieu Pasturel, Julien Havette, Olivier Fiquet, Xavière Iltis
Publikováno v: Journal of Nuclear Materials
Journal of Nuclear Materials, 2021, 543, pp.152541. ⟨10.1016/j.jnucmat.2020.152541⟩
Journal of Nuclear Materials, Elsevier, 2021, 543, pp.152541. ⟨10.1016/j.jnucmat.2020.152541⟩
International audience; In this paper, we propose an alternative process based on spark plasma sintering for the manufacture of nuclear fuel plates for research reactors. This process presents significant flexibility to control manufacturing paramete
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ee41f1b08d4b36bde1195cc053ab325
https://hal.science/hal-03003206
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5
In situ control of oxygen partial pressure in a buffered UO2 fuel: A manufacturing process
Autor: Jean-Marc Heintz, Jacques Lechelle, Xavière Iltis, M. Khair, H. Palancher, P. Matheron, N. Tarisien, Ch. Riglet-Martial
Publikováno v: Journal of the European Ceramic Society
Journal of the European Ceramic Society, Elsevier, 2020, 40 (4), pp.1626-1638. ⟨10.1016/j.jeurceramsoc.2019.11.005⟩
Journal of the European Ceramic Society, 2020, 40 (4), pp.1626-1638. ⟨10.1016/j.jeurceramsoc.2019.11.005⟩
International audience; An innovative laboratory process making use of the specific properties of solid redox buffers was developed for producing O2 self-regulated UO2 fuel samples. The method was optimized using Molybdenum and Niobium oxide buffers.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::791363b96a76f89bfc6c944f94f3a7c7
https://hal.archives-ouvertes.fr/hal-02481021/file/2020-020.pdf
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6
From arc-melted ingot to MTR fuel plate A SEM/EBSD microstructural study of U3Si2
Autor: Hervé Palancher, Julien Havette, Olivier Fiquet, É. Castelier, Xavière Iltis, D. Drouan, Mathieu Pasturel
Publikováno v: Journal of Nuclear Materials
Journal of Nuclear Materials, 2020, 537, pp.152224. ⟨10.1016/j.jnucmat.2020.152224⟩
JdA 2021-50èmes Journées des Actinides + 13th school on the physics and chemistry of actinides
JdA 2021-50èmes Journées des Actinides + 13th school on the physics and chemistry of actinides, Mar 2021, virtual event, France
JdA-2021-50èmes journées des actinides + 13th school on the physics and chemistry of actinides
JdA-2021-50èmes journées des actinides + 13th school on the physics and chemistry of actinides, ISCR-Institut des Sciences Chimiques de Rennes, Mar 2021
event, France
Journal of Nuclear Materials, Elsevier, 2020, 537, pp.152224. ⟨10.1016/j.jnucmat.2020.152224⟩
International audience; U3Si2/Al fuel plates are widely used in Material Testing Reactors (MTRs) as Low Enriched Uranium driver fuel. In this paper, a reinvestigation of the microstructure of U3Si2 particles is proposed to take full advantage of the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad9014ce618141e8bcddef401ac3ffec
https://hal.science/hal-02892687/document
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7
Atomic structure of grain boundaries in UO2 Bicrystals: A coupled high resolution transmission electron Microscopy/Atomistic simulation approach
Autor: Amani Ksibi, Renaud C. Belin, Emeric Bourasseau, C. Onofri, Gérard Lapertot, Xavière Iltis
Publikováno v: Scripta Materialia. 206:114191
In this work, high resolution transmission electron microscopy and numerical simulation at the atomic scale were coupled, for the first time to our knowledge, to study the atomic structure of two Σ5 symmetric tilt grain boundaries in uranium dioxide
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7a95dbdcdd346636b9cf42b6747833e2
https://doi.org/10.1016/j.scriptamat.2021.114191
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8
Experimental and simulation study of grain boundaries in UO2
Autor: Emeric Bourasseau, Renaud C. Belin, Paul Fantou, Xavière Iltis, Alexandre Mouret
Publikováno v: Journal of Nuclear Materials
Journal of Nuclear Materials, Elsevier, 2019, ⟨10.1016/j.jnucmat.2019.02.033⟩
Journal of Nuclear Materials, 2019, ⟨10.1016/j.jnucmat.2019.02.033⟩
International audience; EBSD measurements performed on polycrystalline UO2 samples were analyzed to obtain the linear fraction distribution of grain boundaries as a function of their Coincidence Site Lattice (CSL) indexes. In parallel, molecular dyna
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94911572dd24deffc78586823edb29fd
https://hal-cea.archives-ouvertes.fr/cea-02049047
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9
Microstructure evolution and phase transformation of heavy-ion irradiated U–Mo/Al fuels
Autor: D. Drouan, Jingyi Shi, H. Breitkreutz, Xavière Iltis, C. Onofri, H. Palancher, Winfried Petry
Publikováno v: Journal of Nuclear Materials. 541:152399
The microstructure evolution and phase transformation of the interdiffusion layer resulting from the interaction between U–Mo and Al in U–Mo/Al bilayer systems irradiated from 140 °C to 275 °C are discussed. Heavy ion irradiation was used as a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7cc5f4997ffbc180867c1144446bc046
https://doi.org/10.1016/j.jnucmat.2020.152399
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10
Irradiation effects on the fracture properties of UO2 fuels studied by micro-mechanical testing
Autor: Sylvain Meille, Cyril Langlois, Isabelle Zacharie-Aubrun, Ronan Henry, Thierry Blay, Smail Chalal, Nicolas Tarisien, Jean-Marie Gatt, Xavière Iltis
Publikováno v: Journal of Nuclear Materials
Journal of Nuclear Materials, 2020, 536, ⟨10.1016/j.jnucmat.2020.152179⟩
Micro-cantilevers were prepared with a dual beam microscope SEM/FIB on different fresh and irradiated Pressurized Water Reactor (PWR) UO2 fuels. Their local fracture properties (fracture toughness and fracture stress) and Young's moduli were determin
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70303e565e2e6e34394086489a9f29be
https://doi.org/10.1016/j.jnucmat.2020.152179
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