Critical currents and magnetization properties of YBCO prepared by MPMG process

H. Fujimoto, M. Murakami, S. Gotoh, K. Yamaguchi, M. Yoshida, T. Takata, N. Koshizuka, S. Tanaka

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

YBaCuO prepared by the Melt-Powder-Melt-Growth (MPMG) process has high critical current density over 30,000 A/cm2 at 77K and 1T. It has been found that non-superconducting Y2BaCuO5 (211) particles dispersed in the 123 superconducting phase are responsible for high J c values. The values of critical current densities increased with increasing the volume fraction of the 211 particles. An anomalous second peak was observed in magnetization loops for some samples which showed a broad T c transition in AC measurements, suggesting that some kinds of defects are responsible for the peak.

Original languageEnglish
Article number016
Pages (from-to)S93-S96
JournalSuperconductor Science and Technology
Volume5
Issue number1S
DOIs
Publication statusPublished - 1992 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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