Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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YBCO Bulk Superconductors Prepared by Solid-liquid Melt Growth

고액용융성장법을 이용한 YBCO 단결정 제조

  • 한상철 (한국전력공사 전력연구원 녹색성장연구소) ;
  • 이정필 (한국전력공사 전력연구원 녹색성장연구소) ;
  • 박병철 (한국전력공사 전력연구원 녹색성장연구소) ;
  • 정년호 (한국전력공사 전력연구원 녹색성장연구소) ;
  • 박병준 (한국전력공사 전력연구원 녹색성장연구소) ;
  • 정세용 (한국전력공사 전력연구원 녹색성장연구소) ;
  • 한영희 (한국전력공사 전력연구원 녹색성장연구소) ;
  • 성태현 (한양대학교 공과대학 전기공학과)
  • Received : 2009.08.03
  • Accepted : 2009.09.17
  • Published : 2009.10.01
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Abstract

YBCO bulks with fine $Y_2BaCuO_5$(Y211) particles have been prepared by the top-seed modified powder melting process method, Solid-Liquid Melt Growth(SLMG), with $Y_2O_3$, $BaCuO_2$ and CuO mixing precursor. By using $Y_2O_3$ instead of $Y_2BaCuO_5$ as precursor, the processing became to be simpler and cheaper than the current powder melting process. The microstructures, trapped field and critical current density of the various conditioned YBCO bulks have been analyzed and the effect of Pt additive was studied. The different trapped magnetic field values of the several samples have been explained in the viewpoint of their microstructures. The fabrication of large-sized YBCO single domain has been conducted.

Keywords

References

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