Enhancement of J(c) by refinement of Nd4Ba2Cu2O10 particles in OCMG processed Nd-Ba-Cu-O system with Pt and CeO2 addition

H. S. Chauhan; M. Murakami

doi:10.1016/S0921-5107(99)00196-8

Enhancement of J(c) by refinement of Nd₄Ba₂Cu₂O₁₀ particles in OCMG processed Nd-Ba-Cu-O system with Pt and CeO₂ addition

H. S. Chauhan, M. Murakami

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

17 Citations (Scopus)

Abstract

We have melt-grown the Nd-Ba-Cu-O superconductor from the precursor with a composition of NdBa₂Cu₃O(y) + 10% Nd₄Ba₂Cu₂O₁₀ + 0.5 wt% Pt + 1.0 wt% CeO₂ in 0.1% O₂-Ar environment. A combined addition of Pt and CeO₂ has resulted in the refinement of Nd₄Ba₂Cu₂O₁₀ (Nd422) particles down to submicron size as revealed by optical and transmission electron microscopic observations. A large enhancement of critical current density reaching 10⁵ A cm^-2 in a self field at 77 K has been accomplished as a result of fine dispersion of Nd422.

Original language	English
Pages (from-to)	48-53
Number of pages	6
Journal	Materials Science and Engineering B
Volume	65
Issue number	1
DOIs	https://doi.org/10.1016/S0921-5107(99)00196-8
Publication status	Published - 1999 Oct 29
Externally published	Yes

Keywords

Critical current density
Isothermal growth
Nd-Ba-Cu-O
Nd422 refinement
Oxygen-controlled-melt-growth (OCMG) process
Peak effect
Pt and CeO addition

ASJC Scopus subject areas

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

Access to Document

10.1016/S0921-5107(99)00196-8

Cite this

@article{2edadecaba244e4a94b8af057a6ff56f,

title = "Enhancement of J(c) by refinement of Nd4Ba2Cu2O10 particles in OCMG processed Nd-Ba-Cu-O system with Pt and CeO2 addition",

abstract = "We have melt-grown the Nd-Ba-Cu-O superconductor from the precursor with a composition of NdBa2Cu3O(y) + 10% Nd4Ba2Cu2O10 + 0.5 wt% Pt + 1.0 wt% CeO2 in 0.1% O2-Ar environment. A combined addition of Pt and CeO2 has resulted in the refinement of Nd4Ba2Cu2O10 (Nd422) particles down to submicron size as revealed by optical and transmission electron microscopic observations. A large enhancement of critical current density reaching 105 A cm-2 in a self field at 77 K has been accomplished as a result of fine dispersion of Nd422.",

keywords = "Critical current density, Isothermal growth, Nd-Ba-Cu-O, Nd422 refinement, Oxygen-controlled-melt-growth (OCMG) process, Peak effect, Pt and CeO addition",

author = "Chauhan, {H. S.} and M. Murakami",

note = "Funding Information: This work was partially supported by NEDO for the R&D of Industrial Science and Technology Frontier Program. One of authors (HSC) thanks to the Iwate Technos Foundation, Iwate (Japan) and NEDO for providing the fellowships.",

year = "1999",

month = oct,

day = "29",

doi = "10.1016/S0921-5107(99)00196-8",

language = "English",

volume = "65",

pages = "48--53",

journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",

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publisher = "Elsevier BV",

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T1 - Enhancement of J(c) by refinement of Nd4Ba2Cu2O10 particles in OCMG processed Nd-Ba-Cu-O system with Pt and CeO2 addition

AU - Chauhan, H. S.

AU - Murakami, M.

N1 - Funding Information: This work was partially supported by NEDO for the R&D of Industrial Science and Technology Frontier Program. One of authors (HSC) thanks to the Iwate Technos Foundation, Iwate (Japan) and NEDO for providing the fellowships.

PY - 1999/10/29

Y1 - 1999/10/29

N2 - We have melt-grown the Nd-Ba-Cu-O superconductor from the precursor with a composition of NdBa2Cu3O(y) + 10% Nd4Ba2Cu2O10 + 0.5 wt% Pt + 1.0 wt% CeO2 in 0.1% O2-Ar environment. A combined addition of Pt and CeO2 has resulted in the refinement of Nd4Ba2Cu2O10 (Nd422) particles down to submicron size as revealed by optical and transmission electron microscopic observations. A large enhancement of critical current density reaching 105 A cm-2 in a self field at 77 K has been accomplished as a result of fine dispersion of Nd422.

AB - We have melt-grown the Nd-Ba-Cu-O superconductor from the precursor with a composition of NdBa2Cu3O(y) + 10% Nd4Ba2Cu2O10 + 0.5 wt% Pt + 1.0 wt% CeO2 in 0.1% O2-Ar environment. A combined addition of Pt and CeO2 has resulted in the refinement of Nd4Ba2Cu2O10 (Nd422) particles down to submicron size as revealed by optical and transmission electron microscopic observations. A large enhancement of critical current density reaching 105 A cm-2 in a self field at 77 K has been accomplished as a result of fine dispersion of Nd422.

KW - Critical current density

KW - Isothermal growth

KW - Nd-Ba-Cu-O

KW - Nd422 refinement

KW - Oxygen-controlled-melt-growth (OCMG) process

KW - Peak effect

KW - Pt and CeO addition

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JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology

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