Enhancement of the trapped-fields and mechanical properties of Nd-Ba-Cu-O bulk superconductors

M. Matsui, M. Murakami

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We have studied the effects of processing conditions and the initial compositions in Nd-Ba-Cu-O bulk superconductors on the field-trapping capability and the mechanical properties. Sintering the sample prior to the crystal growth was effective for the fabrication of a good quality sample with high trapped-fields. The optimization of Nd422 and Ag contents along with processing conditions led to an increase in both the field-trapping ability and mechanical properties. As a result, the trapped-field of Nd-Ba-Cu-O 30 mm in diameter reached 1.4 T at liquid nitrogen temperature. The average tensile strength and the Weibull coefficient exceeded 50 MPa and 13, respectively.

Original languageEnglish
Pages (from-to)117-137
Number of pages21
JournalCeramics International
Volume29
Issue number2
DOIs
Publication statusPublished - 2003 Jan 1
Externally publishedYes

Keywords

  • B. Microstructure
  • Bulk
  • C. Superconductivity
  • Nd-Ba-Cu-O
  • Tensile strength
  • Trapped-field

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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