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A proof-of-concept Bitter-like HTS electromagnet fabricated from a silver-infiltrated (RE)BCO ceramic bulk

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  • معلومة اضافية
    • Publisher Information:
      IOP Publishing https://doi.org/10.1088/1361-6668/ad268b Superconductor Science and Technology 2024-02-13T13:45:14Z 2024-03-01 2023-11-09 2024-02-13T13:45:13Z
    • نبذة مختصرة :
      Abstract A novel concept for a compact high-field magnet coil is introduced. This is based on stacking slit annular discs cut from bulk rare-earth barium cuprate ((RE)BCO) ceramic in a Bitter-like architecture. Finite-element modelling shows that a small 20 turn stack (with a total coil volume of < 20 cm3) is capable of generating a central bore magnetic field of > 2 T at 77 K and > 20 T at 30 K. Unlike resistive Bitter magnets, the high-temperature superconducting (HTS) Bitter stack exhibits significant non-linear field behaviour during current ramping, caused by current filling proceeding from the inner radius outwards in each HTS layer. Practical proof-of-concept for this architecture was then demonstrated through fabricating an uninsulated four-turn prototype coil stack and operating this at 77 K. A maximum central field of 0.382 T was measured at 1.2 kA, with an accompanying 6.1 W of internal heat dissipation within the coil. Strong magnetic hysteresis behaviour was obs
      NZ Government Funding
    • الموضوع:
      51 Physical Sciences; 5103 Classical Physics; Other
    • Availability:
      Open access content. Open access content
      Attribution 4.0 International
      https://creativecommons.org/licenses/by/4.0
    • Note:
      text/xml
      application/pdf
      English
      English
    • Other Numbers:
      HS1 oai:www.repository.cam.ac.uk:1810/364524
      1488276071
    • Contributing Source:
      UNIV OF CAMBRIDGE
      From OAIster®, provided by the OCLC Cooperative.
    • الرقم المعرف:
      edsoai.on1488276071
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