대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

MRI용 NbTi 초전도선재 제조 및 초전도 특성 평가

Fabrication and Characterization of NbTi Superconduction wire for MRI

  • 하동우 (한국전기연구소 초전도응용연구사업팀) ;
  • 오상수 (한국전기연구소 초전도응용연구사업팀) ;
  • 류강식 (한국전기연구소 초전도응용연구사업팀) ;
  • 한일용 (대성전선 기술연구소) ;
  • 이종건 (대성전선 기술연구소)
  • Ha, D.W. (KERI. Applied Superconductivity Lab.) ;
  • Oh, S.S. (KERI. Applied Superconductivity Lab.) ;
  • Ryu, K.S. (KERI. Applied Superconductivity Lab.) ;
  • Han, I.Y. (Daesung Cable Co LTD. Research Lab.) ;
  • Lee, C.K. (Daesung Cable Co LTD. Research Lab.)
  • 발행 : 1997.07.21
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초록

The MRI Magnet is a most practical application of NbTi superconductor. In this paper, we present the main research results on superconducting wires for MRI magnet which we have developed. Cu/NbTi superconducting wires were fabricated by repeat of cold working and heat-treating process after that billets were extruded. We investigated the relation of superconductivities of wires and heat treatment condition. The correlation between cross section shape of wires and work inhomogeneity of NbTi rods was investigated by microscopic observation. The more repeatation number of cold working and heat-treating process, the higher critical current is achieved.

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