Superconducting joint of Y-Ba-Cu-O superconductors using Er-Ba-Cu-O solder

K. Iida, J. Yoshioka, N. Sakai, M. Murakami

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Two melt-textured Y-Ba-Cu-O superconductor blocks were successfully welded with Er-Ba-Cu-O solder having a lower peritectic temperature than that of Y-Ba-Cu-O. The key to a strongly coupled joint was a combination of the control of crystal growth along 〈110〉 direction and the employment of a highly dense sintered Er-Ba-Cu-O bar as a solder material. Microstructural analyses revealed that no segregation of secondary phase and/or residual liquid phase was observed at the joint interface. Furthermore, it was found through magneto-optical observations that magnetic field could not penetrate into the joint, indicating that the two superconductors were strongly connected with this method.

Original languageEnglish
Pages (from-to)53-58
Number of pages6
JournalPhysica C: Superconductivity and its applications
Issue number1
Publication statusPublished - 2002 Apr 1
Externally publishedYes


  • Er-Ba-Cu-O
  • Solder
  • Superconducting joint
  • Welding
  • Y-Ba-Cu-O

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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