| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
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
Places of action
| Organizations | Location | People |
|---|
article
Tungsten oxide thin film bombarded with a low energy He ion beam: evidence for a reduced erosion and W enrichment
Abstract
Nanocrystalline tungsten oxide (WO 3) thin films synthesized by thermal oxidation of tungsten substrates were exposed to low energy helium ions (energy: 80 eV; flux: 1.4-1.7×10 20 m-2 s-1) at room temperature and at 673 K. The structure and morphology changes of the oxide were studied using Raman spectroscopy and electron microscopy. Due to the low ion energy, no erosion is observed at room temperature. On the contrary, at 673 K, a colour change is observed and a significant erosion is measured (~ 70 nm for a fluence of ~ 4×10 21 m-2) due to a synergetic effect between ion bombardment and heating. We show that erosion processes and structural changes strongly depend on the ion fluence and in particular the higher the fluence, the lower the erosion yield, most likely due to oxygen depletion in the oxide near-surface layers.