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

A. Hu; Naomichi Sakai; H. Zhou; Masato 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, Naomichi Sakai, H. Zhou, Masato Murakami, I. Hirabayashi

Research output: Contribution to journal › Article

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

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Coarsening

Partial pressure

Superconducting materials

Substitution reactions

Processing

partial pressure

critical current

Experiments

inclusions

substitutes

current density

Keywords

(SmEuGd)BaCu O
Melt processing
Superconducting properties

ASJC Scopus subject areas

Condensed Matter Physics

Cite this

Hu, A., Sakai, N., Zhou, H., Murakami, M., & Hirabayashi, I. (2004). Processing of high-performance (Sm,Eu,Gd)Ba₂Cu₃O _7-δ bulk superconductors with BaO₂ addition. Physica C: Superconductivity and its Applications, 412-414(SPEC. ISS.), 571-574. https://doi.org/10.1016/j.physc.2003.12.060

Processing of high-performance (Sm,Eu,Gd)Ba₂Cu₃O _7-δ bulk superconductors with BaO₂ addition. / Hu, A.; Sakai, Naomichi; Zhou, H.; Murakami, Masato; Hirabayashi, I.

In: Physica C: Superconductivity and its Applications, Vol. 412-414, No. SPEC. ISS., 10.2004, p. 571-574.

Research output: Contribution to journal › Article

Hu, A, Sakai, N, Zhou, H, Murakami, M & Hirabayashi, I 2004, 'Processing of high-performance (Sm,Eu,Gd)Ba₂Cu₃O _7-δ bulk superconductors with BaO₂ addition', Physica C: Superconductivity and its Applications, vol. 412-414, no. SPEC. ISS., pp. 571-574. https://doi.org/10.1016/j.physc.2003.12.060

Hu A, Sakai N, Zhou H, Murakami M, Hirabayashi I. Processing of high-performance (Sm,Eu,Gd)Ba₂Cu₃O _7-δ bulk superconductors with BaO₂ addition. Physica C: Superconductivity and its Applications. 2004 Oct;412-414(SPEC. ISS.):571-574. https://doi.org/10.1016/j.physc.2003.12.060

Hu, A. ; Sakai, Naomichi ; Zhou, H. ; Murakami, Masato ; Hirabayashi, I. / Processing of high-performance (Sm,Eu,Gd)Ba₂Cu₃O _7-δ bulk superconductors with BaO₂ addition. In: Physica C: Superconductivity and its Applications. 2004 ; Vol. 412-414, No. SPEC. ISS. pp. 571-574.

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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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AU - Hirabayashi, I.

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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.

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KW - Superconducting properties

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10.1016/j.physc.2003.12.060