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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Martin, Céline
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2022Optical Properties of Tungsten: A Parametric Study to Characterize the Role of Roughness, Surface Composition and Temperaturecitations
- 2022Optical Properties of Tungsten: A Parametric Study to Characterize the Role of Roughness, Surface Composition and Temperaturecitations
- 2018Single-crystal and polycrystalline diamond erosion studies in Pilot-PSIcitations
- 2017Advanced spectroscopic analyses on a:C-H materials: Revisiting the EELS characterization and its coupling with multi-wavelength Raman spectroscopycitations
- 2017Tungsten oxide thin film bombarded with a low energy He ion beam: evidence for a reduced erosion and W enrichmentcitations
- 2017Tungsten oxide thin film exposed to low energy He plasma: Evidence for a thermal enhancement of the erosion yieldcitations
- 2016Study of the pores inside tungsten coating after thermal cycling for fusion devicecitations
- 2015In-plane and out-of-plane defects of graphite bombarded by H, D and He investigated by atomic force and Raman microscopiescitations
- 2015Multi-technique coupling for analysis of deuterium retention in carbon fiber composite NB31citations
- 2014Multiwavelength Raman spectroscopy analysis of a large sampling of disordered carbons extracted from the Tore Supra tokamakcitations
- 2014Thermal stability and long term hydrogen/deuterium release from soft to hard amorphous carbon layers analyzed using in-situ Raman spectroscopy. Comparison with Tore Supra depositscitations
- 2014Raman microscopy as a defect microprobe for hydrogen bonding characterization in materials used in fusion applicationscitations
- 2013Raman spectroscopy investigation of the H content of heated hard amorphous carbon layerscitations
- 2013Long Term H-Release from Amorphous Carbon Evidenced by in Situ Raman Microscopy under Isothermal Heatingcitations
- 2013Simultaneous deuterium implantation and ion beam microanalyses in CFC NB31: Understanding the in-bulk migrationcitations
- 2012Raman micro-spectroscopy as a tool to measure the absorption coefficient and the erosion rate of hydrogenated amorphous carbon films heat-treated under hydrogen bombardmentcitations
- 2011Raman study of CFC tiles extracted from the toroidal pump limiter of Tore Supracitations
- 2010Structure of the carbon layers deposited on the toroidal pump limiter of Tore Supracitations
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article
Study of the pores inside tungsten coating after thermal cycling for fusion device
Abstract
In the next fusion devices, all the plasma facing components will consist of bulk tungsten or tungsten coating on carbon. This paper focuses on the behaviour of tungsten coated on carbon fibre composite designed for the WEST project (Bucalossi et al 2011 Fusion Eng. Des. 86 684-688) under intensive thermal cycling delivered by an electron beam. The use of scanning electron microscope has allowed in particular, the observation of several pore lines inside the coating. These pore lines have different aspects depending on the observed zone according to the localisation of the electron beam, accentuated lines with more numerous enlarged pores in zone exposed to the electron beam. An analogous trend is also observed for JET tungsten-coated samples under similar thermal cycles despite their different properties due to an alternative manufacturing method of the substrate. A systematic and attentive comparison on the coating changes after the application of the electron beam heating is presented. The observed comportments as the formation of the pore lines or the pore shapes are assumed to be inherent to simultaneous diffusion processes. In association with the pore line formation, a migration of the carbon substrate towards the surface is presumed and discussed.