Progress in Superconductivity

한국초전도학회 (The Korean Superconductivity Society)
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IBAD 기판을 적용한 산화물 전구체 MOD 공정에 의한 YBCO Coated Conductor의 제조

Fabrication of YBCO Coated Conductor by oxide-precursor-based MOD process employing IBAD substrate

  • Kim Y. K. (Korea Institute of Machinery and Materials) ;
  • Yoo J. M. (Korea Institute of Machinery and Materials) ;
  • Ko J. W. (Korea Institute of Machinery and Materials) ;
  • Heo S. Y. (Korea Institute of Machinery and Materials) ;
  • Hong G. W. (Korea Polytechnic University) ;
  • Lee H. G. (Korea Polytechnic University) ;
  • Chung H. S. (Ajou University)
  • 발행 : 2005.04.01
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초록

YBCO coated conductors have been fabricated with a newly developed oxide-precursor-based MOD process. The precursor solution was synthesized with low cost YBCO powders as starting materials and YBCO coated conductors have been deposited on IBAD substrate ($CeO_2$/IBAD-YSZ/SS). YBCO coated conductor prepared by dip coating shows transport $I_c$ of 15A/cm-w at 77 K. Microstructural and crystallographic analyses indicate that YBCO layer was grown in epitaxy with substrate and exhibited well-developed dense microstructure. Also discussed are processing and analysis of YBCO coated conductor by slot-die web coating method. It was shown that this oxide-based MOD process provides a low cost route to coated conductor with high $J_c$.

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