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Superconductivity for hts gdbco cc with heat treatment

  • Jong Su You
  • , Jeong Hun Yang
  • , Kyu Jeong Song*
  • *Corresponding author for this work
  • Jeonbuk National University

Research output: Contribution to journalJournal articlepeer-review

Abstract

The magnetic properties of heat treated O-series high temperature superconducting (HTS) GdBCO coated conductor (CC) tapes which were formed of Ag/GdBCO/Buffer-layers/Stainless Steel (SS), were investigated by employing a Quantum Design PPMS-14. Using a modified Bean model, the critical current density Jc values have been estimated from the Δmirr(H) data, which are obtained by measuring the magnetic moment m(H) loops. For a range of intermediate fields, which are interacting or collective flux pinning area, the magnetic flux behaviors were investigated from the relationship Jc ∝ H. In addition, the changes of irreversibility magnetic field Hirr line of heat-treated O-series HTS GdBCO CC tapes were analyzed, according as the annealing temperature under oxygen flowing increases. Both weak and strong break-downs were found by examining the changes of irreversibility magnetic field Hirr lines.

Original languageEnglish
Pages (from-to)12-16
Number of pages5
JournalProgress in Superconductivity and Cryogenics (PSAC)
Volume23
Issue number1
DOIs
StatePublished - 2021

Keywords

  • Critical current density
  • Heat-treatment
  • HTS GdBCO CC
  • Irreversibility magnetic field
  • Irreversibility magnetic moment

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science
  • Engineering - Electrical & Electronic
  • Engineering - Petroleum

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