Mechanical properties of Nd-Ba-Cu-O bulk superconductors

Motohide Matsui, Naomichi Sakai, Masato Murakami, Kozo Osamura

Research output: Contribution to journalConference article

11 Citations (Scopus)

Abstract

We investigated the effects of Nd422 and Ag particles on the mechanical properties in Nd-Ba-Cu-O bulk superconductors. Both Nd422 and Ag particles were effective in decreasing the amount of microcracks running along the c direction. In the case of Nd422, however, excessive Nd422 addition enhanced the crack propagation, resulting in the degradation of mechanical strength. In the case of Ag addition, the beneficial effect of its ductile mechanical property was not observed. This was due to a relatively large size of Ag particles and low interfacial strength between Ag and Nd123 matrix. It was remarkable that the Weibull coefficient of the sample with Ag2O addition exceeded 13, which is reliable enough for practical engineering applications.

Original languageEnglish
Pages (from-to)1086-1091
Number of pages6
JournalSuperconductor Science and Technology
Volume16
Issue number9
DOIs
Publication statusPublished - 2003 Sep 1
Externally publishedYes
EventMEMO 3: Second International Workshop on Mechano-Electromagetic Properties of Composite Superconductors - Kyoto, Japan
Duration: 2003 Mar 32003 Mar 5

ASJC Scopus subject areas

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

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