Processing of high-performance (Sm,Eu,Gd)Ba2Cu3O 7-δ bulk superconductors with BaO2 addition

A. Hu; N. Sakai; H. Zhou; M. Murakami; I. Hirabayashi

doi:10.1016/j.physc.2003.12.060

Processing of high-performance (Sm,Eu,Gd)Ba₂Cu₃O _7-δ bulk superconductors with BaO₂ addition

A. Hu, N. Sakai, H. Zhou, M. Murakami, I. Hirabayashi

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

Abstract

We fabricated c-axis oriented large grain (Sm,Eu,Gd)Ba₂Cu ₃O_7-δ bulk superconductors with BaO₂ addition under 1% O₂ partial pressure in Ar. The experiment showed that BaO₂ addition significantly reduced a RE-Ba substitution, slightly hindered the coarsening of (Sm,Eu,Gd)₂BaCuO₅ inclusion, and improved the superconducting properties. An optimum adding amount was around 0.06-0.18 per mol RE123. At 77 K, the critical current density reached 83,000 A/cm² at zero field.

Original language	English
Pages (from-to)	571-574
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	412-414
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2003.12.060
Publication status	Published - 2004 Oct 1

Keywords

(SmEuGd)BaCu O
Melt processing
Superconducting properties

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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title = "Processing of high-performance (Sm,Eu,Gd)Ba2Cu3O 7-δ bulk superconductors with BaO2 addition",

abstract = "We fabricated c-axis oriented large grain (Sm,Eu,Gd)Ba2Cu 3O7-δ bulk superconductors with BaO2 addition under 1% O2 partial pressure in Ar. The experiment showed that BaO2 addition significantly reduced a RE-Ba substitution, slightly hindered the coarsening of (Sm,Eu,Gd)2BaCuO5 inclusion, and improved the superconducting properties. An optimum adding amount was around 0.06-0.18 per mol RE123. At 77 K, the critical current density reached 83,000 A/cm2 at zero field.",

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T1 - Processing of high-performance (Sm,Eu,Gd)Ba2Cu3O 7-δ bulk superconductors with BaO2 addition

AU - Hu, A.

AU - Sakai, N.

AU - Zhou, H.

AU - Murakami, M.

AU - Hirabayashi, I.

PY - 2004/10/1

Y1 - 2004/10/1

N2 - We fabricated c-axis oriented large grain (Sm,Eu,Gd)Ba2Cu 3O7-δ bulk superconductors with BaO2 addition under 1% O2 partial pressure in Ar. The experiment showed that BaO2 addition significantly reduced a RE-Ba substitution, slightly hindered the coarsening of (Sm,Eu,Gd)2BaCuO5 inclusion, and improved the superconducting properties. An optimum adding amount was around 0.06-0.18 per mol RE123. At 77 K, the critical current density reached 83,000 A/cm2 at zero field.

AB - We fabricated c-axis oriented large grain (Sm,Eu,Gd)Ba2Cu 3O7-δ bulk superconductors with BaO2 addition under 1% O2 partial pressure in Ar. The experiment showed that BaO2 addition significantly reduced a RE-Ba substitution, slightly hindered the coarsening of (Sm,Eu,Gd)2BaCuO5 inclusion, and improved the superconducting properties. An optimum adding amount was around 0.06-0.18 per mol RE123. At 77 K, the critical current density reached 83,000 A/cm2 at zero field.

KW - (SmEuGd)BaCu O

KW - Melt processing

KW - Superconducting properties

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