Strain and magnetic field response of Ic in reinforced GdBCO coated conductor tapes at 77 K

H. S. Shin, M. Dedicatoria, A. Gorospe, J. R. Dizon, H. Oguro, S. Awaji

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

Understanding the characteristic response of critical current, I c with stress/strain under magnetic field is important for the application of coated conductor (CC) tapes to large scale superconducting coils or magnets. In this study, the strain and magnetic field effects on I c in brass laminated reactive co-evaporation by deposition and reaction (RCE-DR) processed GdBCO CC tapes at 77 K were investigated. In the case of RCE-DR GdBCO CC tape samples with Hastelloy substrate, the additional lamination of brass foils to the Cu-stabilized only resulted in an increased irreversible strain limit of 0.50 % up to 0.80 %. But, not as much of these improvements were observed in CC samples having stainless steel substrate. Also, the additional brass laminate to all GdBCO CC tape samples did not affect the magnetic field response of Ic at 0 % strain. Under magnetic field, the strain response and tolerance of Ic was improved with additional brass laminates showing a much lower Ic reduction as compared with that at the irreversible strain limit of the Cu-stabilized CC samples. The strain sensitivity behavior of Ic under magnetic field (I c-ε-B relation at 77 K) in RCE-DR GdBCO CC tapes was discussed.

Original languageEnglish
Title of host publicationAdvances in Cryogenic Engineering - Transactions of the International Cryogenic Materials Conference, ICMC 2013
PublisherAmerican Institute of Physics Inc.
Pages239-244
Number of pages6
ISBN (Print)9780735412040
DOIs
Publication statusPublished - 2014
Event2013 Joint Cryogenic Engineering and International Cryogenic Materials Conferences, ICMC 2013 - Anchorage, AK, United States
Duration: 2013 Jun 172013 Jun 21

Publication series

NameAIP Conference Proceedings
Volume1574 60
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other2013 Joint Cryogenic Engineering and International Cryogenic Materials Conferences, ICMC 2013
CountryUnited States
CityAnchorage, AK
Period13/6/1713/6/21

Keywords

  • Coated conductors
  • Critical current
  • Electromechanical property
  • Magnetic field
  • Strain response

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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