Earticle

초록

영어

Rare-earth barium copper oxide (REBCO) coated conductor (CC) tapes have already been commercialized but still possess some issues in terms of manufacturing cost, anisotropic in-field performance, Ic response to mechanical loads such as delamination, homogeneity of current transport property, and production length. Development on improving its performance properties to meet the needs in practical device applications is underway and simplification of the tape’s architecture and manufacturing process are also being considered to enhance the performance-cost ratio. As compared to low temperature superconductors (LTS), high temperature superconductor (HTS) REBCO CC tapes provide a much wider range of operating temperature and a higher critical current density at 4.2 K making it more attractive in magnet and coil applications. The superior properties of the REBCO CC tapes under magnetic field have led to the development of superconducting magnets capable of producing field way above 23.5 T. In order to achieve its optimum performance, the electromechanical properties under different deformation modes and magnetic field should be evaluated for practical device design. This paper gives an overview of the effects of mechanical stress/strain on Ic in HTS CC tapes due to uniaxial tension, bending deformation, transverse load, and including the electrical performance of a CC tape joint which were performed by our group at ANU in the last decade.

목차

Abstract
 1. INTRODUCTION
 2. STRAIN EFFECT ON CRITICAL CURRENT, Ic
  2.1. Reversible strain effect on Ic at self-field
  2.2. Bending strain effect on Ic at self-field
  2.3. Strain effect on Ic under magnetic field, Ic (ε, B)
  2.4. Strain effect on Ic at different angle under low magneticfield: Ic (ε, θ, B, 77 K)
 3. RELIABILITY OF CC TAPES IN PRACTICAL APPLICATIONS
  3.1. Cyclic loading (fatigue)
  3.2. Delamination behaviors of CC tapes under transverse stress
  3.3. CC tape joints for device application
 4. CONCLUSIONS
 ACKNOWLEDGMENT
 REFERENCES

키워드

저자

• Hyung-Seop Shin [ Department of Mechanical Design Engineering, Andong National University, Andong, 760-749 Korea ] Corresponding author
• Marlon Dedicatoria [ Department of Mechanical Design Engineering, Andong National University, Andong, 760-749 Korea ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국초전도·저온논문지 (구 한국초전도저온공학회논문지) [Progress in Superconductivity and Cryogenics]

• 간기

  계간

• pISSN

  1229-3008

• eISSN

  2287-6251

• 수록기간

  1999~2026

• 등재여부

  KCI 등재,SCOPUS

• 십진분류

  KDC 427 DDC 537