Microstructural characteristics of melt-powder-melt-grown YBa2Cu3O7-x crystals

R. Miletich, M. Murakami, A. Preisinger, H. W. Weber

研究成果: Article査読

16 被引用数 (Scopus)

抄録

Melt-powder-melt-grown crystals of high-Tc YBa2Cu3O7-δ were prepared from different chemical starting compositions. They all show well textured microstructures with characteristic differences and various amounts of included phases (Y2BaCuO5, Ba4Cu2PtO9, and metallic silver) depending on the starting composition. Detailed investigations with polarized reflected light, XRF, EDX and X-ray diffraction reveal characteristic features of the microstructure such as the distribution of included phases as well as twinning and crack formation, which are related to local variations in oxygen content in these materials. Increasing silver contents result in a reduction of cracking. The occurence of domain-like regions with distinct large twin lamellae is correlated with the distribution of Y2BaCuO5 inclusions.

本文言語English
ページ(範囲)415-420
ページ数6
ジャーナルPhysica C: Superconductivity and its applications
209
4
DOI
出版ステータスPublished - 1993 5月 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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