Floriane Leblond

CEA Cadarache

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Co-Authors

C. Grisolia

Institut de Recherche sur la Fusion par Confinement Magnétique

E.A. Hodille

Commissariat à l'Énergie Atomique et aux Énergies Alternatives

Jonathan Mougenot

Laboratoire des Sciences des Procédés et des Matériaux

Y. Charles

Université Sorbonne Paris Nord

Rémi Delaporte-Mathurin

Institut de Recherche sur la Fusion par Confinement Magnétique

E. Bernard

CEA Cadarache

S. Vartanian

CEA Cadarache

Mickaël Payet

CEA Cadarache

James Dark

Institut de Recherche sur la Fusion par Confinement Magnétique

G. De Temmerman

Climate Foundation

Cooperative Institutions

Commissariat à l'Énergie Atomique et aux Énergies Alternatives

CEA Cadarache

Centre National de la Recherche Scientifique

Institut de Recherche sur la Fusion par Confinement Magnétique

Laboratoire des Sciences des Procédés et des Matériaux

Sorbonne Université

Aix-Marseille Université

Université Sorbonne Paris Nord

KTH Royal Institute of Technology

Royal Military Academy

Author Statistics

Papers

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i-10 index

Research Field

Modelling tritium adsorption and desorption from tungsten dust with a surface kinetic model

HAL (Le Centre pour la Communication Scientifique Directe) (2021)

E.A. Hodille Mickaël Payet Valentina Mărăscu S. Peillon Jonathan Mougenot

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A study on small microcapsules Optimization of parameters controlling alginate bead production by high voltage electrostatic pulses

The International Journal of Artificial Organs (1992)

Jean‐Pierre Hallé Donald W. Landry M. Loignon A. Fournier Paul Jutras

Bead

Magnetic bead

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Influence of interface conditions on hydrogen transport studies

Nuclear Fusion (2021)

Rémi Delaporte-Mathurin E.A. Hodille Jonathan Mougenot Y. Charles G. De Temmerman

Abstract This work investigates the influence of hydrogen chemical potential continuity across solid material interfaces. The implementation of the mathematical model in FESTIM is verified using the method of exact solutions (MES) and the method of manufactured solutions (MMS) in 1D, 2D, with complex material properties and inhomogeneous temperature fields. A comparison test between FESTIM, TMAP7 and Abaqus codes is also performed and the codes show good agreement. The chemical potential continuity condition has an impact up to 40% on the outgassing particle flux on 4 mm composite slabs (W/Cu and Cu/EUROFER) compared to mobile concentration continuity. A method for rapid identification of materials properties from outgassing flux measurements is given. The influence of chemical potential conservation on monoblock inventory is then studied. It is shown that, for the 1D and 2D ITER divertor monobolocks cases, discrepancies only start to appear after approximately 5 × 10 6 s of full power.

Outgassing

Particle (ecology)

10.1088/1741-4326/abd95f

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Citations (14)

Development of the WAter-interface Permeation In Tritium-exposed materIals (Wapiti) tritium experiment and preliminary Eurofer97 results

Nuclear Materials and Energy (2023)

Floriane Leblond E. Bernard Sophie Feuillastre Sébastien Garcia‐Argote E.A. Hodille

The control of tritium inventory and permeation is crucial for the safe operation of fusion reactors. To measure these phenomena, a novel tritium experiment is introduced and used to measure tritium permeation through Eurofer97 at room temperature, with several possibilities for the downstream conditions: air or water and overhead air. A pre-loading condition was shown to be required for this experiment. This direct comparison revealed that tritium is preferentially found in the water phase and secondarily in the air phase.

Fusion power

Glovebox

10.1016/j.nme.2023.101561

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Parametric optimisation based on TDS experiments for rapid and efficient identification of hydrogen transport materials properties

Nuclear Materials and Energy (2021)

Rémi Delaporte-Mathurin E.A. Hodille Jonathan Mougenot Y. Charles G. De Temmerman

A novel identification technique of hydrogen transport parameters using FESTIM (Finite Element Simulation of Tritium In Materials) has been demonstrated. FESTIM is a finite element code developed with FEniCS performing hydrogen transport simulations. The trapping parameters (detrapping energies and trap densities) are identified for various materials (Tungsten, Aluminium, EUROFER and Beryllium) by automatically reproducing thermo-desorption experiments. Several optimisation algorithms are tested and the Nelder–Mead algorithm shows the best efficiency. An optimisation test problem with five free parameters took only a few hours to solve whereas optimisation cases with two free parameters took a few minutes. Limitations of this technique are shown and discussed.

Neutron Transport

Identification

10.1016/j.nme.2021.100984

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Citations (10)

Transport d'hydrogène assisté par les champs thermomécaniques

HAL (Le Centre pour la Communication Scientifique Directe) (2022)

Alexandre Coatmeur Florent Hautem Shihao Bian James Dark Y. Charles

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FESTIM, a modelling code for hydrogen transport in materials for nuclear fusion applications

HAL (Le Centre pour la Communication Scientifique Directe) (2021)

Rémi Delaporte-Mathurin E.A. Hodille James Dark Floriane Leblond Jonathan Mougenot

Code (set theory)

Fusion power

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Permeation and trapping in fusion-relevant materials

HAL (Le Centre pour la Communication Scientifique Directe) (2021)

Floriane Leblond E.A. Hodille S. Vartanian Rémi Delaporte-Mathurin Jonathan Mougenot

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Influence of interfaces on permeation

HAL (Le Centre pour la Communication Scientifique Directe) (2020)

Rémi Delaporte-Mathurin E.A. Hodille Floriane Leblond Jonathan Mougenot Y. Charles

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Permeation and trapping of hydrogen in Eurofer97

Nuclear Materials and Energy (2021)

Floriane Leblond L. Corso Mickaël Payet Rémi Delaporte-Mathurin E. Bernard

Diffusion and trapping of hydrogen isotopes in fusion materials need to be fully described in order to evaluate permeation and retention in fusion reactors walls and breeding blankets. Hydrogen gas permeation experiments have been conducted on Eurofer97 with pressures ranging from 101 to 105 Pa and temperatures between 473 K and 673 K, resulting in solubility K(T) (mol m−3 Pa−12)= 1.76⋅10−1exp(−0.27(eV)kBT), diffusivity D(T) (m2 s−1) =2.52⋅10−7exp(−0.16(eV)kBT) and permeability Φ(T) (mol m−1 Pa−12 s−1) =4.43⋅10−8exp(−0.43(eV)kBT). Trapping parameters have been investigated using thermal desorption spectrometry of deuterium-loaded samples coupled with parametric optimization, leading to detrapping energies Edt,1=0.51eV, Edt,2=1.27eV, Edt,3=1.65eV and densities Nt,1=6.01⋅1025 m−3, Nt,2=6.44⋅1022 m−3, Nt,3=3.88⋅1023 m−3. This parametric optimization is performed using a kinetic surface model: the contribution of this model is compared to the results given by solubility and recombination rate models.

Thermal desorption

10.1016/j.nme.2021.101062

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Citations (12)