| People | Locations | Statistics |
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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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Hinks, Jonathan
University of Huddersfield
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Investigation of the microstructure of He+ ion-irradiated TiBe12 and CrBe12 using ex-situ transmission electron microscopycitations
- 2021Nanostructuring Germanium Nanowires by In Situ TEM Ion Irradiationcitations
- 2021Helium implantation damage resistance in nanocrystalline W-Ta-V-Cr high entropy alloyscitations
- 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
- 2020In-Situ Helium Implantation and TEM Investigation of Radiation Tolerance to Helium Bubble Damage in Equiaxed Nanocrystalline Tungsten and Ultrafine Tungsten-TiC Alloycitations
- 2020Radiation Damage Suppression in AISI-316 Steel Nanoparticles: Implications for the Design of Future Nuclear Materialscitations
- 2019Direct Comparison of Tungsten Nanoparticles and Foils under Helium Irradiation at High Temperatures Studied via In-Situ Transmission Electron Microscopy
- 2017Grain size threshold for enhanced irradiation resistance in nanocrystalline and ultrafine tungstencitations
- 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
- 2014In-situ TEM observation of the response of ultrafine- and nanocrystalline-grained tungsten to extreme irradiation environmentscitations
- 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
Places of action
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article
Helium implantation damage resistance in nanocrystalline W-Ta-V-Cr high entropy alloys
Abstract
<p>Nanocrystalline W-Ta-Cr-V high entropy alloys have shown promising properties as nuclear fusion materials with enhanced radiation resistance to heavy ion irradiation and negligible radiation hardening. In this work, we investigate the performance of the alloy under low energy helium (He) implantation up to a fluence of 1.25 × 10<sup>17</sup> cm<sup>−2</sup> at 1223 K. We observe a uniform high density of very small (~2–3 nm) bubbles grown at a slow rate along with enhanced He bubble damage resistance, further marked by no preferential bubble formation on the grain boundaries, even at much higher fluences compared to previously implanted tungsten grades. First principle calculations of He formation and migration energies in this alloy indicate deep energetic wells on the potential landscape and low diffusivity of He compared to pure W. The results imply higher overall (considering both grain matrices and grain boundaries) implantation resistance due to slow He diffusion and accumulation, and confirm the enhanced vacancy-self interstitial recombination argument in these alloys.</p>