Embedded Y2Ba4CuNbOx nanoparticles in melt-textured YBCO studied by means of EBSD

A. Koblischka-Veneva, M. R. Koblischka, N. Hari Babu, D. A. Cardwell, F. Mücklich

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Melt-textured YBCO samples with embedded nanosize particles of Y2Ba4CuNbOx (Nb-2411) have been studied by means of electron backscatter diffraction (EBSD). The microstructure of these samples shows some distinct and unusual features, not observed in melt-textured bulk samples of other compositions. The resulting texture of the superconducting YBCO matrix is found to be excellent. Y2BaCuO5 (Y-211) particles, which are also present in these samples, exhibit no preferred orientation, as is the case generally in melt-textured YBCO samples. The embedded Y2Ba4CuNbOx particles, in contrast, exhibit only one orientation within the YBCO matrix. Furthermore, we find in the bulk pellets distinct areas with a high second phase particle concentration, adjacent to regions without secondary phase particles.

Original languageEnglish
Pages (from-to)379-381
Number of pages3
JournalPhysica C: Superconductivity and its applications
Volume445-448
Issue number1-2
DOIs
Publication statusPublished - 2006 Oct 1
Externally publishedYes

Keywords

  • EBSD
  • Embedded nanoparticles
  • Grain orientation
  • Melt-textured YBCO

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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