Characteristics of Bi-2212 Superconductor Tube Depending on Heat-treatment Conditions

열처리 조건에 따른 Bi-2212 초전도 튜브의 특성

  • Published : 2001.07.01


Bi-2212 HTS tube was fabricated by centrifugal forming and partial melting processes. Bi-2212 bulk tube has been optimized to achieve smooth surface and uniform thickness. The slurry was prepared in the mixing ratio of 10:1 between Bi-2212 powder and binder and initially charged into the rotating mold under the speed of 300~450 rpm. Heat-treatment was performed at the temperature ranges of 860~89$0^{\circ}C$ in air for partial melting. the HTS tube fabricated by centrifugal forming process at 89$0^{\circ}C$ under the rotating speed of 450 rpm was highly densified and the plate-like grains with more than 20${\mu}{\textrm}{m}$ were well oriented along the rotating axis. The measured Tc and J$_{c}$ at 10K on specimen heat treated at 89$0^{\circ}C$ was around 85 K and 1,200 A/$\textrm{cm}^2$ respectively.y.


  1. IEEE Transaction on Applied Superconductivity v.7 no.2 High Temperature Superconducting Fault Current Limiter Development E. M. Leung;A. Podriguez;G. W. Albert;B. Burley;M. Dew;P. Gurrola;D. Madura
  2. IEEE Transaction on Applied Superconductivity v.9 no.2 HTS Thick Film Components for Fault Current Limiter Applications C. Meggs;Dolman;T. C. Shield;J. S. abell;T. W. Button
  3. Cryogenics v.37 no.10 InductiveHigh-$T_c$ Superconducting Fault Current Limiter Based on Bi-2212 Tube S. Zannella;L. Jansk;P. Donadio
  4. Supercond. Sci. Technol. v.10 Critical Current Density of Bi-2212 Thick Film Prossed by Partial Melting D. Bukl;T. Lang;L. J. Gauckler
  5. Applied Superconductivity v.4 no.7/8 Phase Composition and Grain Alignment in Partial Melting Prosses Bi-2212 Thick Films D. Bukl;T. Lang;L. J. Gauckler
  6. IEEE Transactions on magnetics. v.32 no.4 High Current in MCP BSCCO 2212 Bulk Material Steffen Elschner;Joachim Bock;G. Brommer;Peter F. Hermann
  7. 전기전자재료학회논문지 v.13 no.3 급속응고법을 이용한 Bi계 고온초전도체 전류도입선 제조 박용민;한진만;류운선;장건익