The microstructure and properties of single grain bulk Ag-doped Y-Ba-Cu-O fabricated by seeded infiltration and growth

K. Iida, N. H. Babu, Y. Shi, S. K. Pathak, W. K. Yeoh, T. Miyazaki, Naomichi Sakai, Masato Murakami, D. A. Cardwell

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Single grain, Ag-doped Y-Ba-Cu-O bulk superconductors of up to 30 mm in diameter have been fabricated successfully by a seeded infiltration and growth (IG) technique. These samples exhibit low porosity compared with samples grown by conventional top seeded melt growth (TSMG). The density of voids within as-processed IG samples can be reduced further by adding metallic Ag, rather than Ag2O, to the Y2BaCuO5 (Y-211) pre-form. An inhomogeneous distribution of Y-211 has been observed in these samples. Finally, a maximum trapped magnetic field of 0.5 T was observed for Ag-doped Y-Ba-Cu-O of diameter 30 mm at liquid nitrogen temperature (77 K).

Original languageEnglish
Pages (from-to)1387-1390
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Issue number15-20
Publication statusPublished - 2008 Sep 15



  • Ag-doped Y-Ba-Cu-O
  • Cold-seeding
  • Seeded infiltration and growth
  • Single grain

ASJC Scopus subject areas

  • Condensed Matter Physics

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