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

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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 1
Externally publishedYes

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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