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

M. Matsui, Naomichi Sakai, S. Nariki, Masato Murakami

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)697-701
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume357-360
Issue numberSUPPL. 2
DOIs
Publication statusPublished - 2001 Aug
Externally publishedYes

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microstructure
Microstructure
interfacial energy
Liquids
agglomeration
Interfacial energy
liquid phases
inhomogeneity
Agglomeration
Oxygen
atmospheres
oxygen
liquids

Keywords

  • Nd-Ba-Cu-O
  • Segregation
  • Zr addition

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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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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author = "M. Matsui and Naomichi Sakai and S. Nariki and Masato Murakami",
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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, Naomichi

AU - Nariki, S.

AU - Murakami, Masato

PY - 2001/8

Y1 - 2001/8

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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