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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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Donnelly, Stephen
University of Huddersfield
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Investigation of the microstructure of He+ ion-irradiated TiBe12 and CrBe12 using ex-situ transmission electron microscopycitations
- 2022Observations of He Platelets During He Ion Irradiation in 3C SiCcitations
- 2021Nanostructuring Germanium Nanowires by In Situ TEM Ion Irradiationcitations
- 2021Comparative irradiation response of an austenitic stainless steel with its high-entropy alloy counterpartcitations
- 2020Low-temperature investigations of ion-induced amorphisation in silicon carbide nanowhiskers under helium irradiationcitations
- 2020Effect of decades of corrosion on the microstructure of altered glasses and their radiation stabilitycitations
- 2020Radiation Damage Suppression in AISI-316 Steel Nanoparticles: Implications for the Design of Future Nuclear Materialscitations
- 2019Local chemical instabilities in 20Cr-25Ni Nb-stabilised austenitic stainless steel induced by proton irradiationcitations
- 2019Understanding amorphization mechanisms using ion irradiation in situ a TEM and 3D damage reconstructioncitations
- 2019Direct Comparison of Tungsten Nanoparticles and Foils under Helium Irradiation at High Temperatures Studied via In-Situ Transmission Electron Microscopy
- 2018Synthesis and characterisation of high-entropy alloy thin films as candidates for coating nuclear fuel cladding alloyscitations
- 2016Preliminary assessment of the irradiation behaviour of the FeCrMnNi High-Entropy Alloy for nuclear applications
- 2014In-situ TEM studies of ion-irradiation induced bubble development and mechanical deformation in model nuclear materialscitations
- 2014Helium bubble formation in nuclear glass by in-situ TEM ion implantationcitations
- 2014In-situ observation and atomic resolution imaging of the ion irradiation induced amorphisation of graphenecitations
- 2008A cross-sectional transmission electron microscopy study of iron recovered from a laser-heated diamond anvil cellcitations
- 2006Single ion-induced amorphous zones in silicon
- 2005Study of nanocrystalline TiN/Si3N4 thin films deposited using a dual ion beam methodcitations
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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.