Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference (한국초전도저온공학회:학술대회논문집)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Study on NbTi superconducting joint process for high field MRI magnet

고자장 MRI 마그네트를 위한 NbTi 초전도 접합 공정 연구

  • 하동우 (한국전기연구원 초전도응용연구팀) ;
  • 오상수 (한국전기연구원 초전도응용연구팀) ;
  • 하홍수 (한국전기연구원 초전도응용연구팀) ;
  • 이남진 (한국전기연구원 초전도응용연구팀) ;
  • 고락길 (한국전기연구원 초전도응용연구팀) ;
  • 권영길 (한국전기연구원 초전도응용연구팀) ;
  • 류강식 (한국전기연구원 초전도응용연구팀)
  • Published : 2002.02.01
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Abstract

NbTi/Cu superconducting wires were jointed inserting the NbTi filaments into Cu/NbTi sleeve and pressing it. When the NbTi filaments were inserted into Cu/NbTi sleeve, additional NbTi filaments were inserted together to increase the numbers of filaments in the hole of sleeve. Critical current of the joint of 28 filaments wires with 1.7 mm thickness of dimple was 450 A at 4.2K, 0.5T. Ic of the joint of 54 filaments wires with 2.0 mm thickness of dimple was 600 A at 4.2K, 2T. It is possible to manufacture MRI magnet by using these results.

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