Effect of ZrO2 and BaZrO3 addition on the microstructure and superconducting properties of melt processed NdBa2Cu3O7-δ

M. Matsui; N. Sakai; S. Nariki; M. Murakami

doi:10.1016/S0921-4534(01)00320-3

Effect of ZrO₂ and BaZrO₃ addition on the microstructure and superconducting properties of melt processed NdBa₂Cu₃O_7-δ

M. Matsui, N. Sakai, S. Nariki, M. Murakami

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

8 Citations (Scopus)

Abstract

We investigated the microstructure and superconducting properties of the Nd-Ba-Cu-O with 0-1.0 wt.% ZrO₂ and 0-2.24 wt.% BaZrO₃ synthesized by the oxygen-controlled melt-growth process in 1% O₂-Ar atmosphere. The microstructure of Zr-added NdBCO was not homogeneous, and one could observe the segregation of Nd422 particles, the residual liquid phase including the agglomeration of BaZrO₃ particles and the Nd422-free regions. Such inhomogeneity is caused by the strong influence of BaZrO₃ on the solid/liquid interfacial energy during the melt growth.

Original language	English
Pages (from-to)	697-701
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	357-360
Issue number	SUPPL. 2
DOIs	https://doi.org/10.1016/S0921-4534(01)00320-3
Publication status	Published - 2001 Aug 1
Externally published	Yes

Keywords

Nd-Ba-Cu-O
Segregation
Zr addition

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/S0921-4534(01)00320-3

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title = "Effect of ZrO2 and BaZrO3 addition on the microstructure and superconducting properties of melt processed NdBa2Cu3O7-δ",

abstract = "We investigated the microstructure and superconducting properties of the Nd-Ba-Cu-O with 0-1.0 wt.% ZrO2 and 0-2.24 wt.% BaZrO3 synthesized by the oxygen-controlled melt-growth process in 1% O2-Ar atmosphere. The microstructure of Zr-added NdBCO was not homogeneous, and one could observe the segregation of Nd422 particles, the residual liquid phase including the agglomeration of BaZrO3 particles and the Nd422-free regions. Such inhomogeneity is caused by the strong influence of BaZrO3 on the solid/liquid interfacial energy during the melt growth.",

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T1 - Effect of ZrO2 and BaZrO3 addition on the microstructure and superconducting properties of melt processed NdBa2Cu3O7-δ

AU - Matsui, M.

AU - Sakai, N.

AU - Nariki, S.

AU - Murakami, M.

PY - 2001/8/1

Y1 - 2001/8/1

N2 - We investigated the microstructure and superconducting properties of the Nd-Ba-Cu-O with 0-1.0 wt.% ZrO2 and 0-2.24 wt.% BaZrO3 synthesized by the oxygen-controlled melt-growth process in 1% O2-Ar atmosphere. The microstructure of Zr-added NdBCO was not homogeneous, and one could observe the segregation of Nd422 particles, the residual liquid phase including the agglomeration of BaZrO3 particles and the Nd422-free regions. Such inhomogeneity is caused by the strong influence of BaZrO3 on the solid/liquid interfacial energy during the melt growth.

AB - We investigated the microstructure and superconducting properties of the Nd-Ba-Cu-O with 0-1.0 wt.% ZrO2 and 0-2.24 wt.% BaZrO3 synthesized by the oxygen-controlled melt-growth process in 1% O2-Ar atmosphere. The microstructure of Zr-added NdBCO was not homogeneous, and one could observe the segregation of Nd422 particles, the residual liquid phase including the agglomeration of BaZrO3 particles and the Nd422-free regions. Such inhomogeneity is caused by the strong influence of BaZrO3 on the solid/liquid interfacial energy during the melt growth.

KW - Nd-Ba-Cu-O

KW - Segregation

KW - Zr addition

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