Effect of CeO2 and Pt doping on the microstructure of Nd-Sm123 bulk superconductor fabricated in air

J. Yoshioka, K. Iida, M. Murakami

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We have succeeded in fabricating a (Nd, Sm)-Ba-Cu-O bulk superconductor with high Tc and sharp superconducting transition using Ba-rich (Nd0.8, Sm0.2)3.6Ba2.4Cu1.8O9.6 (NS422ss) powder in air. The magnetic property of this melt-textured bulk was similar in Tc and superconducting transition to the bulk with the same nominal composition melt-textured under low oxygen partial pressure (pO2). The samples also showed relatively high Jc values with the secondary peak effect, although Jc values were slightly lower than the samples melt-textured in low pO2. It was also found that CeO2 and Pt doping was very effective in improving Jc values even for Nd-Sm123 bulk melt textured in air.

Original languageEnglish
Pages (from-to)778-780
Number of pages3
JournalSuperconductor Science and Technology
Volume15
Issue number5
DOIs
Publication statusPublished - 2002 May 1

ASJC Scopus subject areas

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

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