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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A study of joint resistance between (Bi, Pb$)_{2}$$Sr_{2}$$Ca_{2}$$Cu_{3}$$O_{x}$ tapes

(Bi, Pb$)_{2}$$Sr_{2}$$Ca_{2}$$Cu_{3}$$O_{x}$선재간의 접합저항 연구

  • 김정호 (성균관대학교 금속재료공학부) ;
  • 김규태 (성균관대학교 금속재료공학부) ;
  • 주진호 (성균관대학교 금속재료공학부) ;
  • 최세용 (성균관대학교 정보통신공학부) ;
  • 나완수 (성균관대학교 정보통신공학부) ;
  • 강형구 (연세대학교 전기전자공학과) ;
  • 고태국 (연세대학교 전기전자공학과) ;
  • 하홍수 (한국전기연구원 초전도응용연구그룹) ;
  • 오상수 (한국전기연구원 초전도응용연구그룹)
  • Published : 2003.02.01
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Abstract

We joined 19-multifilamentary (Bi, Pb)$_2$Sr$_2$Ca$_2$Cu$_3$O$_{x}$ Superconducting tapes and fabricated double-pancake coils by using resistive- and superconducting-joint methods. The joint resistance of the coils were characterized by the field decay technique and standard four-probe method. It was evaluated that joint resistance was 3.21$\times$10$^{-11}$ $\Omega$ in the superconducting-joint coil, which is approximately 4 orders of magnitude smaller than that in the resistive-joint coil (107$\times$10$^{-9}$ $\Omega$). The low value of joint resistance obtained by superconducting-joint is expected to be suitable for the practical applications in the persistent current mode.e.

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