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

Motohide Matsui, Naomichi Sakai, Masato Murakami, Kozo Osamura

Research output: Contribution to journalArticle

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
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

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