| 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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Tunes, Matheus Araujo
Montanuniversität Leoben
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (34/34 displayed)
- 2024Unraveling the potential of Cu addition and cluster hardening in Al-Mg-Si alloyscitations
- 2024Comparative analysis of experimental techniques for microstructural characterization of novel nanostructured aluminium alloyscitations
- 2024Challenges in developing materials for microreactorscitations
- 2023Orientation dependence of the effect of short-range ordering on the plastic deformation of a medium entropy alloycitations
- 2023Author Correction: A quinary WTaCrVHf nanocrystalline refractory high-entropy alloy withholding extreme irradiation environmentscitations
- 2023In situ transmission electron microscopy as a toolbox for the emerging science of nanometallurgycitations
- 2023Precipitation behaviour in AlMgZnCuAg crossover alloy with coarse and ultrafine grainscitations
- 2023A quinary WTaCrVHf nanocrystalline refractory high-entropy alloy withholding extreme irradiation environmentscitations
- 2022Design of oxygen-doped TiZrHfNbTa refractory high entropy alloys with enhanced strength and ductilitycitations
- 2022MEMS-Based in situ electron-microscopy investigation of rapid solidification and heat treatment on eutectic Al-Cucitations
- 2021Synergistic alloy design concept for new high-strength Al–Mg–Si thick plate alloyscitations
- 2021Deviating from the pure MAX phase concept: Radiation-tolerant nanostructured dual-phase Cr2AlC
- 2021Two step-ageing of 7xxx series alloys with an intermediate warm-forming step
- 2021Giant hardening response in AlMgZn(Cu) alloyscitations
- 2020Prototypic Lightweight Alloy Design for Stellar-Radiation Environmentscitations
- 2020Mechanical properties of homogeneous and nitrogen graded TiN thin filmscitations
- 2020Age-hardening response of AlMgZn alloys with Cu and Ag additionscitations
- 2019Microstructural origins of the high mechanical damage tolerance of NbTaMoW refractory high-entropy alloy thin filmscitations
- 2019Thermodynamics of an austenitic stainless steel (AISI-348) under in situ TEM heavy ion irradiationcitations
- 2019Site specific dependencies of hydrogen concentrations in zirconium hydridescitations
- 2019A candidate accident tolerant fuel system based on a highly concentrated alloy thin filmcitations
- 2019Understanding amorphization mechanisms using ion irradiation in situ a TEM and 3D damage reconstructioncitations
- 2019New Microscope and Ion Accelerators for Materials Investigations (MIAMI-2) system at the University of Huddersfieldcitations
- 2019Experimental investigation of phase equilibria in the Nb–Ni–Si refractory alloy system at 1073 Kcitations
- 2019Thermal stability and irradiation response of nanocrystalline CoCrCuFeNi high-entropy alloycitations
- 2019A Transmission Electron Microscopy study of the neutron-irradiation response of Ti-based MAX phases at high temperaturescitations
- 2019Investigating sluggish diffusion in a concentrated solid solution alloy using ion irradiation with in situ TEMcitations
- 2018Influence of substrate stiffness and of PVD parameters on the microstructure and tension fracture characteristics of TiN thin filmscitations
- 2018Energetic particle irradiation study of TiN coatingscitations
- 2018Synthesis and characterisation of high-entropy alloy thin films as candidates for coating nuclear fuel cladding alloyscitations
- 2017Effect of He implantation on the microstructure of zircaloy-4 studied using in situ TEMcitations
- 2016Preliminary assessment of the irradiation behaviour of the FeCrMnNi High-Entropy Alloy for nuclear applications
- 2015Influence of Zr, Mo and Nb on microstructure of ternary Uranium alloys
- 2014Comparative framework of zirconium alloys and austenitic stainless steels structural integrity under neutron irradiation
Places of action
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article
Challenges in developing materials for microreactors
Abstract
<p>The development of microreactor technology presents an efficient solution for providing portable electricity, catering to both human space exploration needs within our solar system and supplying power to remote Earth-bound areas. The miniaturization of nuclear reactors poses immediate new challenges for materials science with respect to the capability for controlling nuclear reactions via thermalization of highly-energetic neutrons. In a microreactor, neutron moderation takes place in compact geometries, thus new moderator materials are required to exhibit high moderating power per unit of volume. This challenge is currently being addressed through the development of transition metal hydrides, known for their strong nuclear moderation capability but to date, research on their irradiation response is limited, specifically regarding phase stability, hydrogen in-lattice retention, and their dependence on irradiation temperature and dose. Herein, we present a detailed investigation on the response of yttrium dihydride (YH<sub>2</sub>) to heavy ion irradiation. The experiments indicate that YH<sub>2</sub> is stable up to an irradiation dose of 2 dpa and below 800°C, identified herein as a critical temperature for YH<sub>2</sub>. Our study detected the nucleation and growth of voids as a function of the irradiation temperature. They were the predominant type of radiation damage present in the microstructure of YH<sub>2</sub> that was distinguishable from pre-existing defects in the pristine YH<sub>2</sub> samples. Below the critical temperature, no phase transformation (degassing/dehydriding) nor amorphization occurred. Experimental results with concomitant density functional theory calculations allowed us to elaborate and propose new strategies to enhance the metal hydride performance in extreme environments.</p>