Estimation of joint and index dissipation in HTS tape

고온초전도 선재의 접합 및 인덱스손실 평가

  • 김정호 (성균관대학교 금속재료공학부) ;
  • 임준형 (성균관대학교 금속재료공학) ;
  • 장석헌 (성균관대학교 금속재료공학) ;
  • 김규태 (성균관대학교 금속재료공학) ;
  • 주진호 (성균관대학교 금속재료공학) ;
  • 최세용 (성균관대학교 정보통신공학) ;
  • 나완수 (성균관대학교 정보통신공학) ;
  • 강형구 (연세대학교 전기전자공학) ;
  • 고태국 (연세대학교 전기전자공학과)
  • Published : 2003.10.01


We fabricated two HTS closed coils by using resistive-joint method and the joint resistance of the coil was estimated by field decay technique at 77 K. In addition, we used the Runge-kutta method for the numerical analysis to estimate the decay properties. The joint resistances were evaluated as a function of critical current of HTS closed coil and external field strength of excitation coil. It was observed that joint resistance was independent of critical current and external field strength. It was estimated that joint resistance was 8.0$\times$10$^{-9}$ $\Omega$ to 11.9$\times$10$^{-9}$ $\Omega$ for coils of contact length for 7 cm.