| 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 |
|
Aradi, Emily
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2020Low-temperature investigations of ion-induced amorphisation in silicon carbide nanowhiskers under helium irradiationcitations
- 2020Low-temperature investigations of ion-induced amorphisation in silicon carbide nanowhiskers under helium irradiationcitations
- 2020Effect of aluminium concentration on phase formation and radiation stability of Cr2Al x C thin filmcitations
- 2020The effect of flux on ion irradiation-enhanced precipitation in AISI-316L: an in-situ TEM studycitations
- 2020Anomalous behaviour of surface Brillouin scattering in thin strained CVD diamondcitations
- 2020Radiation Damage Suppression in AISI-316 Steel Nanoparticles: Implications for the Design of Future Nuclear Materialscitations
- 2019Investigating Helium Bubble Nucleation and Growth through Simultaneous In-Situ Cryogenic, Ion Implantation, and Environmental Transmission Electron Microscopycitations
- 2019Direct Comparison of Tungsten Nanoparticles and Foils under Helium Irradiation at High Temperatures Studied via In-Situ Transmission Electron Microscopy
- 2018Enhanced radiation tolerance of tungsten nanoparticles to He ion irradiationcitations
Places of action
| Organizations | Location | People |
|---|
article
Low-temperature investigations of ion-induced amorphisation in silicon carbide nanowhiskers under helium irradiation
Abstract
The abundant free surface in nanoporous materials may play a major role in providing ideal sinks for the removal of radiation-induced defects. To study the response of these materials to radiation damage, 4H-silicon carbide (SiC) nanowhiskers (NWs) have been used to model individual ligaments of nanoporous SiC. Using in-situ transmission electron microscopy (TEM) with helium ion irradiation, a crystalline-to-amorphous transformation of the nanowhiskers was investigated as a function of irradiation dose and temperature. For a comparative analysis, the NWs were irradiated simultaneously alongside SiC thin foils (model systems for bulk-like SiC) using 6 keV He ions at temperatures between 100 and 400 K and doses up to 50 dpa. Relatively-low swelling (~8%) due to amorphisation was detected in the NWs compared to the foils (~14%) irradiated at room temperature. A relatively-high critical dose for amorphisation (5 dpa) was observed in the NWs for irradiations below room temperature compared to the foils (0.7 dpa). Amorphisation was completely avoided for NWs irradiated above 200 K – lower than the critical temperature in the foils which was ~300 K. The reduced swelling, higher critical-dose and lower critical-temperature for amorphisation exhibited by the NWs indicate an enhancement in radiation resistance over the foils.