Development of REBCO coated conductors by TFA-MOD method with high characteristic in magnetic field

K. Kimura, R. Hironaga, Y. Takahashi, T. Nakanishi, T. Koizumi, T. Hasegawa, Kohei Higashikawa, Masayoshi Inoue, Takanobu Kiss, T. Kato, T. Nakamura, M. Yoshizumi, T. Izumi, Y. Shiohara

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Y-{\rm x}\hbox{Gd}-{(1 - {\rm x})}\hbox{Ba}-{2}\hbox{Cu}-{3} \hbox{O} \rm y coated conductors (CCs) with artificial pinning centers (APCs) were fabricated by the trifluoroacetates-metal organic deposition method using a batch heat-treatment process. This process has been industrially applied to fabricate long superconducting tapes that have high critical current (I-{\rm c}). From the viewpoint of applications, the characteristics in magnetic fields become further important, and one solution has been shown previously as introduction of APCs such as BaZrO 3 . We applied the technique to our CCs fabrication process. The heat-treatment conditions, specifically total gas pressure, oxygen concentration, and crystallization temperature, were optimized for the batch heat-treatment process. As a consequence, fabricated CC showed extremely high characteristic J c value of 3.5 MA/cm 2 in self field, and 0.3 MA/cm 2 at 3 T in liquid N 2 . Moreover, by cross-sectional transmission electron microscopy observation, it was confirmed that the APC was distributed uniformly. Furthermore, the anisotropy of the pinning center is also examined based on the evaluation result of the angular dependence of J c in 3T.

Original languageEnglish
Article number6407816
JournalIEEE Transactions on Applied Superconductivity
Volume23
Issue number3
DOIs
Publication statusPublished - Mar 11 2013

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conductors
Heat treatment
Magnetic fields
heat treatment
magnetic fields
Superconducting tapes
Trifluoroacetic Acid
Critical currents
Crystallization
Anisotropy
Gases
Metals
Oxygen
tapes
Transmission electron microscopy
gas pressure
Fabrication
critical current
Liquids
crystallization

All Science Journal Classification (ASJC) codes

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

Cite this

Kimura, K., Hironaga, R., Takahashi, Y., Nakanishi, T., Koizumi, T., Hasegawa, T., ... Shiohara, Y. (2013). Development of REBCO coated conductors by TFA-MOD method with high characteristic in magnetic field. IEEE Transactions on Applied Superconductivity, 23(3), [6407816]. https://doi.org/10.1109/TASC.2013.2238975

Development of REBCO coated conductors by TFA-MOD method with high characteristic in magnetic field. / Kimura, K.; Hironaga, R.; Takahashi, Y.; Nakanishi, T.; Koizumi, T.; Hasegawa, T.; Higashikawa, Kohei; Inoue, Masayoshi; Kiss, Takanobu; Kato, T.; Nakamura, T.; Yoshizumi, M.; Izumi, T.; Shiohara, Y.

In: IEEE Transactions on Applied Superconductivity, Vol. 23, No. 3, 6407816, 11.03.2013.

Research output: Contribution to journalArticle

Kimura, K, Hironaga, R, Takahashi, Y, Nakanishi, T, Koizumi, T, Hasegawa, T, Higashikawa, K, Inoue, M, Kiss, T, Kato, T, Nakamura, T, Yoshizumi, M, Izumi, T & Shiohara, Y 2013, 'Development of REBCO coated conductors by TFA-MOD method with high characteristic in magnetic field', IEEE Transactions on Applied Superconductivity, vol. 23, no. 3, 6407816. https://doi.org/10.1109/TASC.2013.2238975
Kimura, K. ; Hironaga, R. ; Takahashi, Y. ; Nakanishi, T. ; Koizumi, T. ; Hasegawa, T. ; Higashikawa, Kohei ; Inoue, Masayoshi ; Kiss, Takanobu ; Kato, T. ; Nakamura, T. ; Yoshizumi, M. ; Izumi, T. ; Shiohara, Y. / Development of REBCO coated conductors by TFA-MOD method with high characteristic in magnetic field. In: IEEE Transactions on Applied Superconductivity. 2013 ; Vol. 23, No. 3.
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