Earticle

초록

영어

REBCO coated conductor (CC) tapes with superior mechanical and electromechanical properties are preferable in applications such as superconducting coils and magnets. The CC tapes should withstand factors that can affect their performance during fabrication and operation of its applications. In coil applications, CC tapes experience different mechanical constraints such as tensile or compressive stresses. Recently, the critical current (Ic) degradation of CC tapes used in coil applications due to delamination were already reported. Thermal cycling, coefficient of thermal expansion mismatch among constituent layers, screening current, etc. can induce excessive transverse tensile stresses that might lead to the degradation of Ic in the CC tapes. Also, CC tapes might be subjected to very high magnetic fields that induce strong Lorentz force which possibly affects its performance in coil applications. Hence, investigation on the delamination mechanism of the CC tapes is very important in coiling, cooling, operation and design of prospect applications. In this study, the electromechanical properties of REBCO CC tapes fabricated by reactive co-evaporation by deposition and reaction (RCE-DR) under transversely applied loading were investigated. Delamination strength of the CC tape was determined using the anvil test. The Ic degraded earlier under transverse tensile stress as compared to that under compressive one.

목차

Abstract
 1. INTRODUCTION
 2. EXPERIMENTAL PROCEDURES
  2.1. Samples
  2.2. Transverse tension test
  2.3. Transverse compression test
 3. RESULTS AND DISCUSSION
  3.1. Ic behavior under transverse tensile stress
  3.2. Ic behavior under transverse compressive stress
  3.3. Reversible Ic behavior under transverse compressive stress
 4. SUMMARY
 ACKNOWLEDGMENT
 REFERENCES

키워드

저자

• Alking B. Gorospe [ aDepartment of Mechanical Design Engieering, Andong National University, Andong, 760-749 Korea, Department of Engineering, Aurora State College of Technology, Baler, Philippines 3200 ]
• Hyung-Seop Shin [ Department of Mechanical Design Engieering, Andong National University, Andong, 760-749 Korea ] Corresponding author

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