Development of Gd-Ba-Cu-O bulk magnets with very high trapped magnetic field

研究成果: Article

42 引用 (Scopus)

抄録

The field-trapping characteristics of recently developed Gd-Ba-Cu-O bulk superconductors will be reported. Large Gd-Ba-Cu-O bulk superconductors with Ag addition were melt-textured under controlled oxygen partial pressure of 1.0%. The single domain Gd-Ba-Cu-O bulk samples 24-50 mm in diameter with submicron-sized Gd2BaCuO5 inclusions could be fabricated without cracks. The field trapping abilities of the bulk samples could dramatically be enhanced through the size reduction of Gd2BaCuO5 particles and the enlargement of grain size. The trapped magnetic field of the bulk Gd-Ba-Cu-O superconductor 50 mm in diameter and 30 mm in thickness reached an extremely high value of 2.7 T at 77 K.

元の言語English
ページ(範囲)631-635
ページ数5
ジャーナルPhysica C: Superconductivity and its Applications
378-381
発行部数PART 1
DOI
出版物ステータスPublished - 2002 10 1
外部発表Yes

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trapped magnetic fields
Superconducting materials
Magnets
magnets
Magnetic fields
trapping
Partial pressure
partial pressure
cracks
grain size
inclusions
Oxygen
Cracks
oxygen

ASJC Scopus subject areas

  • Condensed Matter Physics

これを引用

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abstract = "The field-trapping characteristics of recently developed Gd-Ba-Cu-O bulk superconductors will be reported. Large Gd-Ba-Cu-O bulk superconductors with Ag addition were melt-textured under controlled oxygen partial pressure of 1.0{\%}. The single domain Gd-Ba-Cu-O bulk samples 24-50 mm in diameter with submicron-sized Gd2BaCuO5 inclusions could be fabricated without cracks. The field trapping abilities of the bulk samples could dramatically be enhanced through the size reduction of Gd2BaCuO5 particles and the enlargement of grain size. The trapped magnetic field of the bulk Gd-Ba-Cu-O superconductor 50 mm in diameter and 30 mm in thickness reached an extremely high value of 2.7 T at 77 K.",
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AU - Sakai, Naomichi

AU - Murakami, Masato

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AB - The field-trapping characteristics of recently developed Gd-Ba-Cu-O bulk superconductors will be reported. Large Gd-Ba-Cu-O bulk superconductors with Ag addition were melt-textured under controlled oxygen partial pressure of 1.0%. The single domain Gd-Ba-Cu-O bulk samples 24-50 mm in diameter with submicron-sized Gd2BaCuO5 inclusions could be fabricated without cracks. The field trapping abilities of the bulk samples could dramatically be enhanced through the size reduction of Gd2BaCuO5 particles and the enlargement of grain size. The trapped magnetic field of the bulk Gd-Ba-Cu-O superconductor 50 mm in diameter and 30 mm in thickness reached an extremely high value of 2.7 T at 77 K.

KW - Critical current density

KW - Gd-Ba-Cu-O

KW - Melt processing

KW - Trapped magnetic field

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