Formation and texture of Bi-2223 phase during sintering in high magnetic fields

X. Y. Lu, A. Nagata, K. Watanabe, T. Nojima, K. Sugawara, S. Hanada, S. Kamada

Research output: Contribution to journalConference articlepeer-review

20 Citations (Scopus)

Abstract

The formation and texture of Bi-2223 phase during sintering in high magnetic fields were investigated. Samples contained in silver crucibles were sintered at different temperatures from 835 to 860 °C for 120 h in a vertical tube furnace installed in a solenoid-type superconducting magnet. A vertical magnetic field, Ha of 10 T can be applied parallel to the long axis of the furnace. It has been found that the mixed structures of the Bi-2223 and the Bi-2212 grains with their c-axis parallel to the magnetic field are formed in samples sintered at 850-855 °C in 10 T magnetic field. Below 845 °C sintering in 10 T, a high proportion of Bi-2223 phase is obtained, however no preferred orientation is observed. It is suggested that a liquid phase is important for the formation of the textured structure in magnetic fields.

Original languageEnglish
Pages (from-to)453-457
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume392-396
Issue numberPART 1
DOIs
Publication statusPublished - 2003 Oct
EventProceedings of the 15th International Symposium on Superconduc - Yokohama, Japan
Duration: 2002 Nov 112002 Nov 13

Keywords

  • Bi-2223
  • 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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