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

S. Nariki; N. Sakai; M. Murakami

doi:10.1016/S0921-4534(02)01510-1

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

S. Nariki, N. Sakai, M. Murakami

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

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.

Original language	English
Pages (from-to)	631-635
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	378-381
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4534(02)01510-1
Publication status	Published - 2002 Oct 1
Externally published	Yes

Keywords

Critical current density
Gd-Ba-Cu-O
Melt processing
Trapped magnetic field

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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10.1016/S0921-4534(02)01510-1

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title = "Development of Gd-Ba-Cu-O bulk magnets with very high trapped magnetic field",

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.",

keywords = "Critical current density, Gd-Ba-Cu-O, Melt processing, Trapped magnetic field",

author = "S. Nariki and N. Sakai and M. Murakami",

note = "Funding Information: This work is supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.",

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doi = "10.1016/S0921-4534(02)01510-1",

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T1 - Development of Gd-Ba-Cu-O bulk magnets with very high trapped magnetic field

AU - Nariki, S.

AU - Sakai, N.

AU - Murakami, M.

N1 - Funding Information: This work is supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.

PY - 2002/10/1

Y1 - 2002/10/1

N2 - 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.

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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U2 - 10.1016/S0921-4534(02)01510-1

DO - 10.1016/S0921-4534(02)01510-1

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SN - 0921-4534

VL - 378-381

SP - 631

EP - 635

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - PART 1

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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