Ic Response with High Magnetic Field, Low Temperature, and Uniaxial Strain in REBCO Coated Conductor Tapes

Hyung Seop Shin, Marlon James Dedicatoria, Alking Gorospe, Hidetoshi Oguro, Satoshi Awaji

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

The coated conductor (CC) tapes exhibit greater potential in magnet and coil applications with high critical current density, $J-{c}$ and good mechanical properties along longitudinal direction as compared with the low temperature superconductors (LTSs). Differences in fabrication processes, architecture, and layer materials in REBCO CC tapes produce different mechanical and electromechanical behaviors under magnetic field $B$, temperature $T$, and strain $\varepsilon$. For practical applications of HTS CC tapes such as magnets, the understanding of critical current, $I-{c}$ behavior under $B$, $T$, and $\varepsilon$ is necessary. In this paper, the $I-{c}\ (B,T,\varepsilon)$ characteristics of REBCO CC tapes have been evaluated. Using a Katagiri-type tension rig, the strain effect on $I-{c}$ in CC tapes with varying magnetic field and temperature was determined. In addition, the magnetic field dependence of $I-{c}$ with temperature have also been measured. CC tapes with artificial pinning centers (APC) showed better electrical performance under magnetic field. Finally, the strain sensitivity and magnetic field dependence of $I-{c}$ decreased with decreasing temperature from 77 up to 20 K.

Original languageEnglish
Article number7393523
JournalIEEE Transactions on Applied Superconductivity
Volume26
Issue number4
DOIs
Publication statusPublished - 2016 Jun

Keywords

  • Coated conductor
  • critical current
  • high magnetic field
  • low temperature
  • low temperature

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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