Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Evaluation of mechanical properties of Bi-2223/Ag HTS tapes

Bi-2223/Ag 고온초전도 선재의 기계적 특성 평가

  • 하홍수 (한국전기연구원 초전도응용연구그룹) ;
  • 이동훈 (한국전기연구원 초전도응용연구그룹) ;
  • 양주생 (한국전기연구원 초전도응용연구그룹) ;
  • 최정규 (한국전기연구원 초전도응용연구그룹) ;
  • 윤진국 (한국전기연구원 초전도응용연구그룹) ;
  • 하동우 (한국전기연구원 초전도응용연구그룹) ;
  • 오상수 (한국전기연구원 초전도응용연구그룹) ;
  • 권영길 (한국전기연구원 초전도응용연구그룹) ;
  • 김상철 (넥상스코리아 기술연구소)
  • Published : 2002.05.01
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Abstract

Evaluation of the mechanical properties of Bi-2223/Ag HTS tapes was carried out by the tension and bending tests. Most of the Bi-2223/Ag tapes retained critical current up to 10 kgf/mm$_2$ axial tension stress, and 0.2% tension strain at room temperature. Applied tension strain exceeding 0.3% in superconducting tapes at 77 K leaded to rapid degradation of the critical current. It was observed that the more filaments, the better axial tension property at 77 K, self-field The influence of bending strain on critical current degradation was revealed to be less sensitive for Bi-2223/Ag HTS tapes with a more number of filaments and higher silver ratio.

Keywords

References

  1. Supercond. Sci. Technol. v.13 Current status of high-Tc wire P.Vase;R. Flukiger;M. Leghissa;B. Glowacki https://doi.org/10.1088/0953-2048/13/7/201
  2. IEEE Trans. Appl. supercond. v.9 no.2 The influence of processing parameters and tensile stresses on the properties of Bi-2223 tapes with Ag and AgMn sheaths K. Fisher;T. Fahr;U. Schlafer;C. Rodig;P. Trinks;M. Schubert;P. Verges;H. Klauss https://doi.org/10.1109/77.785025
  3. Physica C v.324 Metal-ceramics interface response to bending and fatigue cycles in superconducting Ag-Bi2223 composites M.T. Malachevsky;D.A.Esparz https://doi.org/10.1016/S0921-4534(99)00455-4
  4. Cryogenics v.36 Tensile strain/ transverse compresive stress dependence of critical current in Ag-sheathed Bi(2212) 7-core superconducting wires K. Katagiri;H.S. Shin;Y. Shoji;N. Ebisawa;K. Watanabe;K. Noto;T. Okada;M. Hiraoka;S. Yuya https://doi.org/10.1016/0011-2275(96)00007-0
  5. Supercon. Sci. Tech. v.11 Strain tolerance of Ag-sheathed BSCCO(2223) superconductors with various geometrical configurations N. Vasanthamohan;J.P. Singh;K.A. Lubke https://doi.org/10.1088/0953-2048/11/6/007
  6. IEEE Trans. Mag. v.32 no.4 Descriptive model for the critical current as a function of axial strain in Bi-2212/Ag wires B. ten Haken;A. Godeke;H.J. Schuver;H.J.;ten Kate https://doi.org/10.1109/20.511436
  7. 전기전자재료학회지 v.14 Bi-2223/Ag 고온초전도 선재의 변형에 따른 임계전류 특성 하홍수;오상수;하동우;심기덕;김상철;장현만;권영길;류강식
  8. The abstract of 2001 Japan-Korea joint workshop v.1 The influence of hard bending strain on Bi-2223/Ag tapes H.S.Ha;S.S.Oh;D.W. Ha;Y.K.Kwon;K.S.Ryu.
  9. the abstracts of 65th meeting on cryogenics and superconductivity v.1 Stress-strain behavior and its correlation with superconducting properties in Ag/Bi2223 tapes K. Osamura;K. Matsumoto;M. Sugano