Critical current density of filamentary NSG123 superconductors in high magnetic field

Y. Ikebe; E. Ban; Y. Matsuoka; G. Nishijima; Kazuo Watanabe

doi:10.1016/j.physc.2007.03.451

Critical current density of filamentary NSG123 superconductors in high magnetic field

Y. Ikebe, E. Ban, Y. Matsuoka, G. Nishijima, Kazuo Watanabe

High Field Laboratory for Superconducting Materials

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

4 Citations (Scopus)

Abstract

(Nd_0.33Sm_0.33Gd_0.33)_1.18Ba _2.12Cu_3.09O_y filaments have been successfully fabricated by a solution spinning method and OCMG processing. We have systematically investigated the relationship between cooling rate from the partial-melting temperature and transport J_c value for filamentary samples treated in 0.1%O₂ + Ar. It was found that both the J_c value and the microstructure of samples depended on the cooling rate. The samples partially melted at 1050°C and cooling rate of 10-50 °C/h showed J_c value higher than 10⁴ A/cm². The maximum J_c value of 3.0 × 10⁴ A/cm² was obtained for 40 °C/h sample. The transport J_c was also measured at 83-90 K in external magnetic fields up to 17 T. The 10 °C/h sample exhibited superior J_c behavior and a J_c value of 1.1 × 10³ A/cm² at 83 K was maintained up to 17 T, in which fine (Nd,Sm,Gd)₂BaCuO₅ particles about 1 μm in diameter were homogeneously dispersed.

Original language	English
Pages (from-to)	559-563
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	463-465
Issue number	SUPPL.
DOIs	https://doi.org/10.1016/j.physc.2007.03.451
Publication status	Published - 2007 Oct 1

Keywords

Critical current density
Filamentary NSG superconductor

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/j.physc.2007.03.451

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title = "Critical current density of filamentary NSG123 superconductors in high magnetic field",

abstract = "(Nd0.33Sm0.33Gd0.33)1.18Ba 2.12Cu3.09Oy filaments have been successfully fabricated by a solution spinning method and OCMG processing. We have systematically investigated the relationship between cooling rate from the partial-melting temperature and transport Jc value for filamentary samples treated in 0.1%O2 + Ar. It was found that both the Jc value and the microstructure of samples depended on the cooling rate. The samples partially melted at 1050°C and cooling rate of 10-50 °C/h showed Jc value higher than 104 A/cm2. The maximum Jc value of 3.0 × 104 A/cm2 was obtained for 40 °C/h sample. The transport Jc was also measured at 83-90 K in external magnetic fields up to 17 T. The 10 °C/h sample exhibited superior Jc behavior and a Jc value of 1.1 × 103 A/cm2 at 83 K was maintained up to 17 T, in which fine (Nd,Sm,Gd)2BaCuO5 particles about 1 μm in diameter were homogeneously dispersed.",

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author = "Y. Ikebe and E. Ban and Y. Matsuoka and G. Nishijima and Kazuo Watanabe",

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doi = "10.1016/j.physc.2007.03.451",

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T1 - Critical current density of filamentary NSG123 superconductors in high magnetic field

AU - Ikebe, Y.

AU - Ban, E.

AU - Matsuoka, Y.

AU - Nishijima, G.

AU - Watanabe, Kazuo

PY - 2007/10/1

Y1 - 2007/10/1

N2 - (Nd0.33Sm0.33Gd0.33)1.18Ba 2.12Cu3.09Oy filaments have been successfully fabricated by a solution spinning method and OCMG processing. We have systematically investigated the relationship between cooling rate from the partial-melting temperature and transport Jc value for filamentary samples treated in 0.1%O2 + Ar. It was found that both the Jc value and the microstructure of samples depended on the cooling rate. The samples partially melted at 1050°C and cooling rate of 10-50 °C/h showed Jc value higher than 104 A/cm2. The maximum Jc value of 3.0 × 104 A/cm2 was obtained for 40 °C/h sample. The transport Jc was also measured at 83-90 K in external magnetic fields up to 17 T. The 10 °C/h sample exhibited superior Jc behavior and a Jc value of 1.1 × 103 A/cm2 at 83 K was maintained up to 17 T, in which fine (Nd,Sm,Gd)2BaCuO5 particles about 1 μm in diameter were homogeneously dispersed.

AB - (Nd0.33Sm0.33Gd0.33)1.18Ba 2.12Cu3.09Oy filaments have been successfully fabricated by a solution spinning method and OCMG processing. We have systematically investigated the relationship between cooling rate from the partial-melting temperature and transport Jc value for filamentary samples treated in 0.1%O2 + Ar. It was found that both the Jc value and the microstructure of samples depended on the cooling rate. The samples partially melted at 1050°C and cooling rate of 10-50 °C/h showed Jc value higher than 104 A/cm2. The maximum Jc value of 3.0 × 104 A/cm2 was obtained for 40 °C/h sample. The transport Jc was also measured at 83-90 K in external magnetic fields up to 17 T. The 10 °C/h sample exhibited superior Jc behavior and a Jc value of 1.1 × 103 A/cm2 at 83 K was maintained up to 17 T, in which fine (Nd,Sm,Gd)2BaCuO5 particles about 1 μm in diameter were homogeneously dispersed.

KW - Critical current density

KW - Filamentary NSG superconductor

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Critical current density of filamentary NSG123 superconductors in high magnetic field

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