Refinement of Nd4Ba2Cu2O10 particle in the superconducting matrix

K. Iida; J. Yoshioka; T. Saito; K. Kamada; M. Murakami

doi:10.1016/S0921-4534(00)01562-8

Refinement of Nd₄Ba₂Cu₂O₁₀ particle in the superconducting matrix

K. Iida, J. Yoshioka, T. Saito, K. Kamada, M. Murakami

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

4 Citations (Scopus)

Abstract

We have investigated the effect of oxygen partial pressure, initial composition and CeO₂ addition on the coarsening of Nd₄Ba₂Cu₂O₁₀ (Nd422) in a Ba-Cu-O melt. It was found that the size of Nd422 decreased in the liquid when the initial composition was shifted toward Ba-rich direction. Reduction of the partial pressure of oxygen and addition of CeO₂ were also found to be effective for the refinement of Nd422. Fine dispersion of Nd422 led to an enhancement of the critical current density (J_c) in a low field region for melt-textured Nd-Ba-Cu-O.

Original language	English
Pages (from-to)	115-126
Number of pages	12
Journal	Physica C: Superconductivity and its applications
Volume	350
Issue number	1-2
DOIs	https://doi.org/10.1016/S0921-4534(00)01562-8
Publication status	Published - 2001 Feb 1
Externally published	Yes

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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abstract = "We have investigated the effect of oxygen partial pressure, initial composition and CeO2 addition on the coarsening of Nd4Ba2Cu2O10 (Nd422) in a Ba-Cu-O melt. It was found that the size of Nd422 decreased in the liquid when the initial composition was shifted toward Ba-rich direction. Reduction of the partial pressure of oxygen and addition of CeO2 were also found to be effective for the refinement of Nd422. Fine dispersion of Nd422 led to an enhancement of the critical current density (Jc) in a low field region for melt-textured Nd-Ba-Cu-O.",

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T1 - Refinement of Nd4Ba2Cu2O10 particle in the superconducting matrix

AU - Iida, K.

AU - Yoshioka, J.

AU - Saito, T.

AU - Kamada, K.

AU - Murakami, M.

PY - 2001/2/1

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AB - We have investigated the effect of oxygen partial pressure, initial composition and CeO2 addition on the coarsening of Nd4Ba2Cu2O10 (Nd422) in a Ba-Cu-O melt. It was found that the size of Nd422 decreased in the liquid when the initial composition was shifted toward Ba-rich direction. Reduction of the partial pressure of oxygen and addition of CeO2 were also found to be effective for the refinement of Nd422. Fine dispersion of Nd422 led to an enhancement of the critical current density (Jc) in a low field region for melt-textured Nd-Ba-Cu-O.

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