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논문 기본 정보

자료유형
학술저널
저자정보
장석헌 (School of Advanced Materials Science and Engineering, Sungkyunkwan University) 임준형 (School of Advanced Materials Science and Engineering, Sungkyunkwan University) 김규태 (School of Advanced Materials Science and Engineering, Sungkyunkwan University) 이진성 (School of Advanced Materials Science and Engineering, Sungkyunkwan University) 윤경민 (School of Advanced Materials Science and Engineering, Sungkyunkwan University) 주진호 (School of Advanced Materials Science and Engineering, Sungkyunkwan University) 이희균 (The department of Electronic Engineering, Korea Polytechnic University) 홍계원 (The department of Electronic Engineering, Korea Polytechnic University)
저널정보
한국초전도학회 Progress in superconductivity Progress in superconductivity 제7권 제2호
발행연도
2006.1
수록면
135 - 139 (5page)

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We fabricated YBCO coated conductors (CCs) by TFA-MOD process and evaluated microstructure, texture formation, and critical temperature ($T_c$) and current ($I_c$). YBCO precursor solution was synthesized using metal-trifluoroacetates and dip coated on $LaAlO_3$(LAO) substrate. The phase formation and microstructure was characterized by X-ray diffraction and scanning electron microscopy (SEM) and the degree of texture was evaluated by pole-figure analysis. The CC was heat-treated in various calcining temperatures ($370^{\circ}C-460^{\circ}C$) and firing temperatures ($750^{\circ}C-800^{\circ}C$). As fired at $775^{\circ}C$ for 4h, the CC had the highest $T_c$ of 89.5 K and $I_c$ of 40 A/cm-width ($J_c=2.0\;MA/cm^2$). Microstructural observation indicated that the YBCO film was dense and homogeneous and had a strong cube texture without formation of second phase and its in-plane full-width at half-maxima; $5.2^{\circ}$ under optimum condition.

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