Fabrication and superconducting properties of Gd-Ba-Cu-O single-grain bulk with barium cerate addition

S. Nariki, N. Sakai, M. Murakami, I. Hirabayashi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We investigated processing, microstructure and superconducting properties of Gd123 single grain bulk superconductors with a large amount of BaCeO3. The melt-textured bulk samples with compositions of Gd123 : BaCeO3 : Gd211 = 100 : 40-x : x (x = 0-40) plus 20 wt.% of Ag2O and 0.5 wt.% of Pt were fabricated in Ar-1%O2 gas. The single grain bulk samples 25 and 33 mm in diameters were obtained with the composition of x = 5-40. It was observed that BaCeO3 particles of 1-2 μm in diameters and Gd211 particles of 0.5-1 μm in diameters were dispersed in the melt-textured samples. Magnetic trapped fields of the 25 mm-sized samples with x = 10-40 were around 1 T at 77 K and the 33 mm-sized sample with x = 20 was 1.4 T at 77 K.

Original languageEnglish
Pages (from-to)291-294
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume445-448
Issue number1-2
DOIs
Publication statusPublished - 2006 Oct 1

Keywords

  • BaCeO
  • Critical current density
  • Melt-textured bulk
  • Trapped magnetic field Gd-Ba-Cu-O

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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