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자료유형
학술저널
저자정보
고락길 (Korea Electrotechnology Research Institute, Changwon) 정준기 (Korea Electrotechnology Research Institute, Changwon) 하홍수 (Korea Electrotechnology Research Institute, Changwon) 김호섭 (Korea Electrotechnology Research Institute, Changwon) 송규정 (Korea Electrotechnology Research Institute, Changwon) 박찬 (Korea Electrotechnology Research Institute, Changwon) 문승현 (Seoul National University) 유상임 (Seoul National University) 김영철 (Pusan Natoinal University)
저널정보
한국초전도학회 Progress in superconductivity Progress in superconductivity 제6권 제1호
발행연도
2004.1
수록면
74 - 78 (5page)

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YBCO coated conductor is one of the most promising materials as a new generations wire especially for practical power applications. In this work, $YBa_2$$Cu_3$$O_{7}$ -$\delta$/(YBCO) coated conductors (CC) were deposited by pulsed laser deposition (PLD) from buffer layers to superconducting layer on hi-axially textured metal tape. The oxide multilayer buffered substrate of architectures of $CeO_2$/$YSZ/Y_2$$O_3$ was fabricated by PLD at steady status. Then YBCO layer was deposited on RABiTS substrate by stationary and reel-to-reel (R2R) continuous process and we compared with deposition conditions of both processes. 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 $\Phi$-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 (Ic) at 77 K, self-field of 75.8 A/cm-width, critical temperature (Tc) of 85 K, and critical current density (Ic) of 3.7 MA/$\textrm{cm}^2$ were measured from coated conductor deposited by stationary process. And coated conductor deposited by R2R continuous process had Ic of 57.5 A/cm-width, Tc of 86.5 K and Jc of 2.0 MA/$\textrm{cm}^2$. The film also exhibits a homogeneous and dense surface morphology.

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