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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Fabrication of 100m Class Bi-2223 High Temperature Superconductir

100m급 Bi-2223 고온초전도 선재 제조

  • 하홍수 (한국전기연구소 초전도 사업팀) ;
  • 오상수 (한국전기연구소 초전도 사업팀) ;
  • 하동우 (한국전기연구소 초전도 사업팀) ;
  • 장현만 (한국전기연구소 초전도 사업팀) ;
  • 이남진 (한국전기연구소 초전도 사업팀) ;
  • 이준석 (대성전선 기술 연구소) ;
  • 정대영 (대성전선 기술 연구소) ;
  • 류강식 (대성전선 기술 연구소)
  • Published : 1999.02.01
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Abstract

For large scale applications of high temperature superconductor(HTS) such as transmission cables, motors and generators, long length of flexible HTS conductors is required. Currently, HTS tape that is capable of being fabricated in long length by industrial processes is the Bi-2223 HTS tape. In this study, we fabricated 19 filamentary Bi-2223($Bi_{1.8}$$Pb_{0.4}$$Sr_{2}$$Ca_{2}$$Cu_{3}$$O_{10+X}$) HTS tape with 100m length by PIT(Powder In Tube) process. Critical current(Ic) of this long length tape was measured 18.5 A at 77 K, self field and short sample Ic is 32.5 A at the same condition. Critical current of 100m length tape was decreased by about 1/3 compared to that of short tape. This was mainly resulted from the increase of non homogeneity in oxide layer.

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