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

S. Nariki, Naomichi Sakai, Masato 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

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Barium
barium
Fabrication
fabrication
Chemical analysis
Superconducting materials
Gases
Microstructure
trapped magnetic fields
Processing
microstructure
gases

Keywords

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

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Fabrication and superconducting properties of Gd-Ba-Cu-O single-grain bulk with barium cerate addition. / Nariki, S.; Sakai, Naomichi; Murakami, Masato; Hirabayashi, I.

In: Physica C: Superconductivity and its Applications, Vol. 445-448, No. 1-2, 01.10.2006, p. 291-294.

Research output: Contribution to journalArticle

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AU - Sakai, Naomichi

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AU - Hirabayashi, I.

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AB - 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.

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