Homogenizing field-trapping capabilities of bulk Y-Ba-Cu-O superconductors fabricated using Ba-Cu-O oxide substrates for practical applications

Motohide Matsui, Norichika Tsuji, Shinya Nariki, Naomichi Sakai, Kengo Iwafuchi, Masato Murakami

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We employed Ba-Cu-O substrates for fabrication of bulk Y-Ba-Cu-O superconductors using the top-seeded melt-growth method. There were several advantages of using a Ba-Cu-O substrate as compared to conventional substrate materials such as MgO, ZrO2, Al2O3, RE123 (RE = rare earth) and RE211. The Ba-Cu-O substrate avoided crystallization from the substrate, suppressed liquid loss and scarcely reacted with the precursor. Furthermore, the introduction of large-sized cracks into a grown bulk was greatly suppressed by propagation along the interface between the grown bulk and the substrate. We were able to obtain bulk Y-Ba-Cu-O superconductors with uniform trapped magnetic field distributions and equal maximum trapped field values on both top and bottom surfaces, which indicates that the field-trapping capabilities were homogenized along the c-axes of the bulks fabricated on the Ba-Cu-O substrates.

Original languageEnglish
Article number045012
JournalSuperconductor Science and Technology
Volume21
Issue number4
DOIs
Publication statusPublished - 2008 Apr 1

Fingerprint

YBCO superconductors
homogenizing
Oxides
Superconducting materials
trapping
oxides
Substrates
trapped magnetic fields
Crystallization
Rare earths
rare earth elements
cracks
crystallization
Magnetic fields
Cracks
Fabrication
fabrication
propagation
Liquids
liquids

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Homogenizing field-trapping capabilities of bulk Y-Ba-Cu-O superconductors fabricated using Ba-Cu-O oxide substrates for practical applications. / Matsui, Motohide; Tsuji, Norichika; Nariki, Shinya; Sakai, Naomichi; Iwafuchi, Kengo; Murakami, Masato.

In: Superconductor Science and Technology, Vol. 21, No. 4, 045012, 01.04.2008.

Research output: Contribution to journalArticle

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