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Aimantation de pastilles supraconductrices

Abstract : The superconducting bulks can produce very strong magnetic fields greater than those of permanent magnets can. Several methods of magnetization of the superconducting bulks exist, however one is mainly used for the electrical applications, the Pulsed Field Magnetization. In order to control the magnetization of the superconducting bulks by PFM, we studied the influence of the shape of the inductor on the trapped magnetic field where we find a significant influence of the shape of the inductor on the trapped magnetic field in the anticipate superconducting bulk. In order to the implementation of the superconducting bulk in the electrical applications, we studied the magnetization of these bulks in a magnetic core and the influence of this magnetic core on the trapped magnetic field. We notice an important improvement of the trapped magnetic field in the superconducting bulk by using the magnetic core. We studied also the influence of a pulsed and an alternating demagnetizing field on the trapped magnetic field in a superconducting bulk. The observed degradation does not show any contraindication to use the superconducting magnetic bulks in the electrical engineering applications.
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https://hal.univ-lorraine.fr/tel-01751814
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Submitted on : Thursday, March 29, 2018 - 1:27:24 PM
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  • HAL Id : tel-01751814, version 1

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Bashar Gony. Aimantation de pastilles supraconductrices. Autre. Université de Lorraine, 2015. Français. ⟨NNT : 2015LORR0110⟩. ⟨tel-01751814⟩

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