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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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Linsmeier, Christian
Ruhr University Bochum
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024The Effect of Y Addition on Oxidation Resistance of Bulk W-Cr Alloys
- 2024Combining Chemical Vapor Deposition and Spark Plasma Sintering for the Production of Tungsten Fiber‐Reinforced Tungsten (Hybrid – W<sub>f</sub>/W)citations
- 2024Repair of heat load damaged plasma–facing material using the wire-based laser metal deposition processcitations
- 2022Manufacturing of W/steel composites using electro-discharge sintering process
- 2022Manufacturing of W/steel composites using electro-discharge sintering processcitations
- 2022Large-Scale Tungsten Fibre-Reinforced Tungsten and Its Mechanical Propertiescitations
- 2021Advanced self-passivating alloys for an application under extreme conditionscitations
- 2019Argon-seeded plasma exposure and oxidation performance of tungsten-chromium-yttrium smart alloyscitations
- 2014Raman microscopy as a defect microprobe for hydrogen bonding characterization in materials used in fusion applicationscitations
- 2009Multi-axial thermo-mechanical fatigue of a near-gamma TiAl-alloy
Places of action
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document
Raman microscopy as a defect microprobe for hydrogen bonding characterization in materials used in fusion applications
Abstract
We present the Raman microscopy ability to detect and characterize the way hydrogen is bonded with elements that will be used for ITER's plasma facing components. For this purpose we first use hydrogenated amorphous carbon samples, formed subsequently to plasma-wall interactions (hydrogen implantation, erosion, deposition...) occurring inside tokamaks, to demonstrate how this technique can be used to retrieve useful information. We pay attention in identifying which spectroscopic parameters are sensitive to the local structure (sp 3 /sp 2) and which gives information on the hydrogen content using isothermal and linear temperature ramp studies on reference samples produced by plasma enhanced chemical vapor deposition. We then focus on the possibility to use this fast, non-destructive and non-contact technique to characterize the influence of hydrogen isotope implantation in few nanometers of graphite and beryllium as C is still used in the JT-60 tokamak and Be is used in JET and will be used as plasma-facing component in the future reactor ITER. We also pay attention on implantation in tungsten oxide which may be formed accidently in the machine.