Microstructure and flux pinning in oxygen-controlled melt-growth processed (Nd0.33Eu0.33Gd0.33)Ba2 Cu3Oy

研究成果: Article査読

10 被引用数 (Scopus)

抄録

We fabricated single-domain (Nd0.33Eu0.33Gd0.33)Ba2 Cu3Oy (NEG123) bulk superconductors with a top-seeded melt-growth process in Ar-0.1%O2 atmosphere using melt-textured Nd-123 as a seed crystal. We added a variety of secondary phase particles ((Nd,Eu,Gd)211, (Eu,Gd)211, Eu211, Gd211) in different amounts to the NEG123. Scanning electron microscopy observations demonstrated that the morphology, the particle size, and the distribution were strongly dependent on the concentration and the type of secondary phase. In addition, the chemical analyses revealed that the matrix composition also changes with the secondary phase particles. They also strongly affected the critical current density (Jc) and the irreversibility fields. The self-field and peak Jc values will be discussed with relation to the type of pinning mechanisms.

本文言語English
ページ(範囲)19-24
ページ数6
ジャーナルPhysica C: Superconductivity and its applications
363
1
DOI
出版ステータスPublished - 2001 10 15
外部発表はい

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

フィンガープリント 「Microstructure and flux pinning in oxygen-controlled melt-growth processed (Nd<sub>0.33</sub>Eu<sub>0.33</sub>Gd<sub>0.33</sub>)Ba<sub>2</sub> Cu<sub>3</sub>O<sub>y</sub>」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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