The Effect of Sintering Time on the Stabilization of the Bi-Pb-Sr-Ca-Cu-O Superconducting Phase

Bi-Pb-Sr-Ca-Cu-O 초전도상의 안정화에 미치는 소결시간의 영향

  • 형경우 (전주대학교 이공대학 화학과) ;
  • 박성호 (전주대학교 이공대학 화학과) ;
  • 이두원 (전주대학교 이공대학 화학과) ;
  • 한태종 (전주대학교 이공대학 물리학과) ;
  • 최범식 (전주대학교 이공대학 물리학과) ;
  • 김창은 (연세대학교 공과대학 세라믹공학과)
  • Published : 1992.02.01


A high-Tc superconducting phase was obtained using long sintering time of 210 hours. From XRD and SEM analyses, it could be confirmed that the particles were plate phase, of which the structure is tetragonal system with lattice parameter a=b=5.44${\AA}$, C=37.18${\AA}$. Resistance and current density measurements were carried out using 4 probe method. The experimental data revealed that the stable high-Tc superconducting phase was easily formed by addition of Pb to Bi-system. Therefore, we could find the sintering condition to synthesis the system having the largest fraction of high Tc phase.



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