The Transactions of the Korean Institute of Electrical Engineers (대한전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Development of BiPbSrCaCuO Superconductor by Diffusion of Dual-Layer Sample

이중층 시료에서 확산에 의한 BiPbSrCaCuO 초전도체 개발

  • 최성환 (전북대 대학원 전기공학과) ;
  • 박성진 (전북대 대학원 전기공학과) ;
  • 유현수 (전북대 대학원 전기공학과) ;
  • 강형곤 (전북대 대학원 전기공학과) ;
  • 한병성 (전북대 공대 전기공학과)
  • Published : 1994.05.01

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Abstract

The BiPbSrCaCuO superconductor was fabricated by diffusion of The dual layer composed of SrS12TCaS11TCuS12TOS1xT in upper layer and BiS12TPbSI0.3TCuS12TOS1yT in lower layer, and varified growh-mechanism of BiPbSrCaCuO superconducting phase. And, we produced optimum conditions of spread volume and each stage of sintering time were upper layer:Lower layer=1:0.2, 1:0.4, 1:0.6 and 24hr., 120hr., 210hr. From the result, the optimum conditions are spread volume(Upper layer:Lower layer=1:0.6), sintering time(210hrs.) at 820$^{\circ}C$.The BiPbSrCaCuO superconductor, fabricated optimum condition, showed zero resistance at critical temperature of 70k.

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