Fabrication of large melt-textured RE-Ba-Cu-O (RE = Gd, Dy) superconductors and their trapped magnetic fields

Shinya Nariki; Naomichi Sakai; Masato Murakami

Fabrication of large melt-textured RE-Ba-Cu-O (RE = Gd, Dy) superconductors and their trapped magnetic fields

Shinya Nariki, Naomichi Sakai, Masato Murakami

Research output: Contribution to journal › Conference article › peer-review

Abstract

We have succeeded in synthesizing RE-Ba-Cu-O (RE = Gd and Dy) bulk superconductors with excellent field trapping properties. Large c-axis oriented single-domain Gd-Ba-Cu-O bulk samples with Ag addition were melt-textured under controlled oxygen partial pressure of 1.0%. The Gd-Ba-Cu-O sample 50 mm in diameter could trap a high flux density of 2.4 T at 77 K. In addition, we measured the trapped field between two Gd-bulks in order to minimize the demagnetizing effect and found that it reached 3.3 T. The single-domain Dy-Ba-Cu-O/Ag bulk 48 mm in diameter was also fabricated in air and its trapped field was 1.9 T at 77 K.

Original language	English
Pages (from-to)	II10.7.1-II10.7.5
Journal	Materials Research Society Symposium - Proceedings
Volume	659
Publication status	Published - 2001 Dec 1
Externally published	Yes
Event	High Temperature Superconductors - Crystal Chemistrym Processing and Properties - Boston, MA, United States Duration: 2000 Nov 27 → 2000 Dec 1

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Fabrication of large melt-textured RE-Ba-Cu-O (RE = Gd, Dy) superconductors and their trapped magnetic fields",

abstract = "We have succeeded in synthesizing RE-Ba-Cu-O (RE = Gd and Dy) bulk superconductors with excellent field trapping properties. Large c-axis oriented single-domain Gd-Ba-Cu-O bulk samples with Ag addition were melt-textured under controlled oxygen partial pressure of 1.0%. The Gd-Ba-Cu-O sample 50 mm in diameter could trap a high flux density of 2.4 T at 77 K. In addition, we measured the trapped field between two Gd-bulks in order to minimize the demagnetizing effect and found that it reached 3.3 T. The single-domain Dy-Ba-Cu-O/Ag bulk 48 mm in diameter was also fabricated in air and its trapped field was 1.9 T at 77 K.",

author = "Shinya Nariki and Naomichi Sakai and Masato Murakami",

year = "2001",

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day = "1",

language = "English",

volume = "659",

pages = "II10.7.1--II10.7.5",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "High Temperature Superconductors - Crystal Chemistrym Processing and Properties ; Conference date: 27-11-2000 Through 01-12-2000",

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TY - JOUR

T1 - Fabrication of large melt-textured RE-Ba-Cu-O (RE = Gd, Dy) superconductors and their trapped magnetic fields

AU - Nariki, Shinya

AU - Sakai, Naomichi

AU - Murakami, Masato

PY - 2001/12/1

Y1 - 2001/12/1

N2 - We have succeeded in synthesizing RE-Ba-Cu-O (RE = Gd and Dy) bulk superconductors with excellent field trapping properties. Large c-axis oriented single-domain Gd-Ba-Cu-O bulk samples with Ag addition were melt-textured under controlled oxygen partial pressure of 1.0%. The Gd-Ba-Cu-O sample 50 mm in diameter could trap a high flux density of 2.4 T at 77 K. In addition, we measured the trapped field between two Gd-bulks in order to minimize the demagnetizing effect and found that it reached 3.3 T. The single-domain Dy-Ba-Cu-O/Ag bulk 48 mm in diameter was also fabricated in air and its trapped field was 1.9 T at 77 K.

AB - We have succeeded in synthesizing RE-Ba-Cu-O (RE = Gd and Dy) bulk superconductors with excellent field trapping properties. Large c-axis oriented single-domain Gd-Ba-Cu-O bulk samples with Ag addition were melt-textured under controlled oxygen partial pressure of 1.0%. The Gd-Ba-Cu-O sample 50 mm in diameter could trap a high flux density of 2.4 T at 77 K. In addition, we measured the trapped field between two Gd-bulks in order to minimize the demagnetizing effect and found that it reached 3.3 T. The single-domain Dy-Ba-Cu-O/Ag bulk 48 mm in diameter was also fabricated in air and its trapped field was 1.9 T at 77 K.

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M3 - Conference article

AN - SCOPUS:0035742594

VL - 659

SP - II10.7.1-II10.7.5

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

SN - 0272-9172

T2 - High Temperature Superconductors - Crystal Chemistrym Processing and Properties

Y2 - 27 November 2000 through 1 December 2000

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