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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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Ainslie, Md
King's College London
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2023Record field in a 10 mm-period bulk high-temperature superconducting undulatorcitations
- 2023Record field in a 10 mm-period bulk high-temperature superconducting undulator
- 2022Simulation of mechanical stresses in reinforced REBaCuO ring bulks during pulsed-field magnetization
- 2020Numerical simulation of flux jump behavior in REBaCuO ring bulks with an inhomogeneous Jc profile during pulsed-field magnetizationcitations
- 2020Composite stacks for reliable > 17 T trapped fields in bulk superconductor magnets
- 2019Influence of Inner Diameter and Height of Ring-Shaped REBaCuO Bulks on Trapped Field and Mechanical Stress during Field-Cooled Magnetizationcitations
- 2019Design Optimization of a Hybrid Trapped Field Magnet Lens (HTFML)citations
- 2019Composite stacks for reliable > 17 T trapped fields in bulk superconductor magnetscitations
- 2017Numerical modelling of iron-pnictide bulk superconductor magnetizationcitations
- 2017Numerical modelling of iron-pnictide bulk superconductor magnetisation
- 2016Pulsed Field Magnetization of Single-Grain Bulk YBCO Processed from Graded Precursor Powders
- 2015Pulsed Field Magnetization of Single-Grain Bulk YBCO Processed from Graded Precursor Powderscitations
- 2014Computation of the field in an axial gap, trapped-flux type superconducting electric machinecitations
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article
Influence of Inner Diameter and Height of Ring-Shaped REBaCuO Bulks on Trapped Field and Mechanical Stress during Field-Cooled Magnetization
Abstract
<p>In this paper, the trapped field B<sub>z</sub>, thermal hoop stress σ<sub>θ</sub><sup>cool</sup>by cooling from 300 to 50 K, and electromagnetic hoop stress σ<sub>θ</sub><sup>FCM</sup>during field-cooled magnetization (FCM) from B<sub>app</sub>= 6.3 and 9.4 T are investigated numerically for ring-shaped REBaCuO bulks with various inner diameters (I.D.) and heights (H) and reinforced by an Al alloy ring. For simplicity, an identical critical current density J<sub>c</sub>(B), which is a typical value at 50 K, is assumed in the simulation. The B<sub>z</sub>value at the center of the ring bulk changes depending on the I.D. and H values of the ring bulk, which results from the different distribution of the superconducting current. As a result, the total hoop stress σ<sub>θ</sub><sup>total</sup>(= σ<sub>θ</sub><sup>cool</sup>+ σ<sub>θ</sub><sup>FCM</sup>) also changes for each ring bulk and each B<sub>app</sub>because of the variation of the σ<sub>θ</sub><sup>cool</sup>and σ<sub>θ</sub><sup>FCM</sup>values. The maximum σ<sub>θ</sub><sup>total</sup>value, which affects the bulk fracture at B<sub>app</sub>= 9.4 T, increases with decreasing the height of ring bulk. These results can present guidelines for designing a trapped-field magnet using ring bulks.</p>