Crystallographic orientation of Y2Ba4CuMOx (M=Nb, Zr, Ag) nanoparticles embedded in bulk, melt-textured YBCO studied by EBSD

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

研究成果: Article査読

28 被引用数 (Scopus)

抄録

Crystallographic orientations of Y-Ba-Cu-O (YBCO) and embedded Y2Ba4CuMOx (M=Nb, Zr, Ag) nanoparticles in bulk, melt-textured YBCO samples are studied by electron backscatter diffraction. Y2BaCuO5 particles exhibit no preferred orientation but have a strong negative influence on the matrix orientation. In contrast, the nanoparticles do not disturb the texture of the YBCO matrix. Depending on the preparation route, a different particle orientation with respect to the matrix is obtained. Untextured nanoparticles are formed by solid-state reaction during the melt process by adding oxides (Nb2O5 or Y2O3) to the precursor powder. Preformed Y2Ba4CuMOx particles added to the precursor in the form of prereacted nanopowder exhibit a dominant single orientation related to the surrounding YBCO matrix.

本文言語English
ページ(範囲)2582-2588
ページ数7
ジャーナルJournal of the American Ceramic Society
90
8
DOI
出版ステータスPublished - 2007 8 1
外部発表はい

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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