Magnetization mechanism of a hybrid high temperature superconducting trapped field magnet

Liao, Hengpei and Yuan, Weijia and Zhang, Zhiwei and Zhang, Min (2023) Magnetization mechanism of a hybrid high temperature superconducting trapped field magnet. Journal of Applied Physics, 133 (2). 023902. ISSN 0021-8979 (https://doi.org/10.1063/5.0133219)

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Abstract

This paper studies the magnetization mechanism of a hybrid high temperature superconducting (HTS) trapped field magnet. To address the size limitation of traditional HTS bulk materials, hybridization between HTS-stacked ring magnets and HTS bulks is proposed here. A jointless HTS-stacked ring magnet is used to increase the trapped field area for HTS bulks. A hybrid HTS magnet with 90 mm in length and 60 mm in width was tested to provide a trapped field of 7.35 T in a field cooling magnetization. The paper focuses mainly on understanding the novel magnetization mechanism of this hybrid HTS trapped field magnet. A numerical model based on homogenized H formulation was used to compare with experimental results, and a good match was found. Our experimental and numerical study of the electromagnetic interaction between the HTS-stacked ring magnet and the HTS bulks reveals that there are two magnetization stages, and the magnetization speed differs in these two stages by a sing criterion: whether the HTS-stacked ring magnet is fully penetrated or not. This study confirms that hybridization helps to build large HTS trapped field magnets.

ORCID iDs

Liao, Hengpei, Yuan, Weijia, Zhang, Zhiwei and Zhang, Min ORCID logoORCID: https://orcid.org/0000-0003-4296-7730;
  • Item type:Article
    ID code:83680
    Dates:
    Date
    Event
    9 January 2023
    Published
    13 December 2022
    Accepted
    Keywords:hybrid high temperature, field magnet, ring magnets, Physics, Physics and Astronomy(all)
    Subjects:Science > Physics
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:11 Jan 2023 15:43
    Last modified:25 May 2023 11:10
    URI:https://strathprints.strath.ac.uk/id/eprint/83680
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