Effect of the magnetic fields on microstructure and critical current properties of the Bi-2223 tapes

X. Y. Lu, A. Nagata, K. Sugawara, Kazuo Watanabe, Tsutomu Nojima, H. Chen

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The microstructure and superconducting properties of Bi-based superconducting tapes fabricated in high magnetic fields were investigated. The flat tapes 0.6 mm in thickness and 3 mm in width set on the an isolite holder were sintered at 835-850 °C for 120 h in 0 or 10 T magnetic field in air. The results show that the tape sintered with 10 T magnetic field shows stronger c-axis alignment of the Bi-2223 phase and higher Jc value than that sintered without magnetic field. The tape sintered at 835 °C in a 10 T magnetic field shows a high proportion of Bi-2223 phase, however, a low c-axis alignment of the Bi-2223 phase. The tape sintered above 845 °C in a 10 T magnetic field shows a strong c-axis alignment of the Bi-2223 phase, however, a low proportion of Bi-2223 phase. The tape sintered at 840 °C in a 10 T magnetic field shows a strong c-axis alignment of the Bi-2223 phase, a high proportion of Bi-2223 phase, and the highest Jc value.

Original languageEnglish
Pages (from-to)1505-1508
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume469
Issue number15-20
DOIs
Publication statusPublished - 2009 Oct 15

Keywords

  • Bi-2223
  • Critical current density
  • Magnetic field sintering
  • Superconductors
  • Texture

ASJC Scopus subject areas

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

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