Microstructures and critical currents in melt-processed YBCO

H. Fujimoto, T. Taguchi, M. Murakami, N. Nakamura, N. Koshizuka

研究成果: Article査読

17 被引用数 (Scopus)

抄録

YBaCuO bulk superconductors prepared by the melt-powder-melt-growth process (MPMG) have a high critical current density. It has been found that non-superconducting Y2BaCuO5 (211) particles dispersed in the 123 superconducting phase can work as strong pinning centres, resulting in higher Jc values. Though 211 particles are considered to be the main pinning centres, defects such as twins and stacking faults are observed in melt-processed YBCO. In this study the effect of twin boundaries on the flux pinning was measured magnetically. The results indicate that twin planes contribute to flux pinning, but that their effect is not large in MPMG samples.

本文言語English
ページ(範囲)954-958
ページ数5
ジャーナルCryogenics
32
11
DOI
出版ステータスPublished - 1992
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 物理学および天文学(全般)

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