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

研究成果: Article査読

1 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号045012
ジャーナルSuperconductor Science and Technology
21
4
DOI
出版ステータスPublished - 2008 4 1

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 凝縮系物理学
  • 金属および合金
  • 電子工学および電気工学
  • 材料化学

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