대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

냉각 조건에 의한 Bi-Pb-Sr-Ca-Cu-O 초전도 선재의 특성 연구

A study on the superconducting properties of Bi-Pb-Sr-Ca-Cu-O superconducting wire with cooling conditions.

  • 김민기 (전북대학교 전기공학과 대학원) ;
  • 최효상 (전북대학교 전기공학과 대학원) ;
  • 최성환 (전북대학교 전기공학과 대학원) ;
  • 박성진 (전북대학교 전기공학과 대학원) ;
  • 한병성 (전북대학교 전기공학과)
  • Kim, Min-Ki (Dep. of Elec. Eng., Graduate School Chonbuk National Univ.) ;
  • Choi, Hyo-Sang (Dep. of Elec. Eng., Graduate School Chonbuk National Univ.) ;
  • Choi, Sung-Hyan (Dep. of Elec. Eng., Graduate School Chonbuk National Univ.) ;
  • Park, Sung-Jin (Dep. of Elec. Eng., Graduate School Chonbuk National Univ.) ;
  • Han, Byoung-Sung (Dep. of Elec. Eng., School Chonbuk National Univ.)
  • 발행 : 1993.11.26
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Silver-sheathed Bi-Pb-Sr-Ca-Cu-O wires by the powder-in-tube method were preparated to study on the superconducting properties with cooling conditions. Superconducting wires were cooled down in the furnace, air and liquid $N_2$ after sintering at $840^{\circ}C$. Critical current density of sample cooled in the furnace is $5.1{\times}10^3\;A/cm^2$ at 77K, zero magnetic field and Jc of sample cooled in the air is very low. 2223 high-Tc superconducting phase of sample cooled in the air was distroyed. Therefore, we knew that superconducting wire need to cool slowly to get the high critical current density.

키워드