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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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Turner, Joel
University of Manchester
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024Development of high-temperature-steam Resistant UN via the addition of UB 2
- 2024Development of high-temperature-steam Resistant UN via the addition of UB2
- 2023Fabrication and thermal conductivity of UN-UB2 composites fabricated by spark plasma sinteringcitations
- 2020Synthesis of Candidate Advanced Technology Fuel: Uranium Diboride (UB2) via Carbo/Borothermic Reduction of UO2
- 2020Synthesis of Candidate Advanced Technology Fuel: Uranium Diboride (UB2) via Carbo/Borothermic Reduction of UO2citations
- 2020Steam Performance of UB2/U3Si2 Composite Fuel Pellets, Compared to U3Si2 Reference Behaviourcitations
- 2019A high density composite fuel with integrated burnable absorber: U3Si2-UB2citations
- 2018The use of gadolinium as a burnable poison within U 3 Si 2 fuel pelletscitations
- 2018The use of gadolinium as a burnable poison within U3Si2 fuel pelletscitations
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article
Fabrication and thermal conductivity of UN-UB2 composites fabricated by spark plasma sintering
Abstract
The fabrication and thermal conductivity of mixed-phase UN-UB2 composite pellets has been investigated using the laser flash method. Composites were fabricated by synthesizing UB2 and UN via the carbo/borothermic reduction and hydriding-nitriding-denitriding routes respectively, followed by spark plasma sintering of pellets at 1973 K. Combustion analysis of the synthesized powder showed the existence of C impurity in the synthesized UN.A U-B-N ternary phase formed during SPS fabrication, as an interaction product between the UN and UB2. Analysis of the thermal diffusivity of the composites indicated the partial oxidation of the composites during measurements. The corrected thermal conductivity of the composites was found to increase with increasing UB2 content up to 1073 K (maximum temperature measured). The fabricated composites showed a higher thermal conductivity than the reported UN at low temperatures (673 K). However, the increase was less significant at higher temperatures andthe thermal conductivity was found to be lower than UN for composites with low UB2 content (up to 10 wt. %), potentially due to impurities within the synthesised UN.