Joint properties of REBCO coated conductors

T. Maebatake, Y. Ichinose, K. Yamada, N. Mori, Ryo Teranishi, Masayoshi Inoue, Takanobu Kiss, M. Yoshizumi, T. Izumi, Kenji Kaneko, Shinji Munetoh, Masashi Mukaida

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

We investigated joint properties of REBCO (REBa2Cu 3O7-X, RE = rare earth element) coated conductors using a diffusion joint process. Two pieces of the coated conductor tapes with stabilizing silver layer on REBCO were overlapped in a face to face manner, which were pressurized and heat-treated at about 623-673 K in oxygen atmosphere. The joint resistance for YBCO tape was about 6.5 nΩ cm 2 at 77 K, on the other hand, that for GdBCO tape was about 37 nΩ cm2 which was higher than YBCO. From the results of both cross-sectional transmission electron microscope (TEM) and energy dispersive X-ray spectrometry (EDS) analysis, diffusion of Gd-element into Ag layer was observed for the joined sample of GdBCO tape, it is suggested to be a cause of higher joint resistance for GdBCO tape.

Original languageEnglish
Pages (from-to)987-989
Number of pages3
JournalPhysica C: Superconductivity and its applications
Volume471
Issue number21-22
DOIs
Publication statusPublished - Nov 1 2011

All Science Journal Classification (ASJC) codes

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

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