Fabrication of YBCO coated conductors by PLD continuous reel-to-reel processing

PLD 연속 공정을 통한 YBCO coated conductor 제조

  • 고락길 (한국전기연구원 초전도응용연구그룹) ;
  • 신기철 (부산대학교 무기재료공학) ;
  • ;
  • 정준기 (한국전기연구원 초전도응용연구그) ;
  • 박유미 (한국전기연구원 초전도응용연구그) ;
  • 최수정 (한국전기연구원 초전도응용연구그) ;
  • 송규정 (한국전기연구원 초전도응용연구그) ;
  • 하홍수 (한국전기연구원 초전도응용연구그) ;
  • 김호섭 (한국전기연구원 초전도응용연구그룹)
  • Published : 2003.10.01

Abstract

YBa$_2$Cu$_3$O$_{7-{\delta}}$(YBCO) coated conductors were deposited by pulsed laser deposition (PLD) on short buffered substrate in continuous PLD reel-to-reel system. The oxide multilayer buffered substrate of architectures of CeO$_2$/YSZ/Y$_2$O$_3$was fabricated by PLD at steady status. The degree of texture of each layer was investigated using X-ray diffraction including $\theta$-2$\theta$ scans, $\omega$-scans and $\Phi$-scans analysis. Their surface morphology was observed by scanning electron microscopy (SEM) The FWHM of the X-ray $\omega$-scans and $\Phi$-scans indicated that YBCO and buffer layers closely replicate the in-plane and out-of-plane texture of metal tape. Critical current at 77K self-field of 19A, critical temperature of 86K, and current density of 2MA/$\textrm{cm}^2$ were measured. The film also exhibits a homogeneous and dense surface morphology.e morphology.

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