Contribution to the study of phase interactions and morphology in YBCO/Ag melt-processed composites

G. A. Costa, Paolo Mele

Research output: Contribution to journalArticle

4 Citations (Scopus)


The Y-Ba-Cu-O/Ag equilibrium diagram in oxygen atmosphere was studied. A high thermal effect was found when the silver concentration was increased to 35 wt.%. The peritectic decomposition temperature of the Y-123 phase is lowered from 1040 to 940 °C. The nature of the phenomenon is not due to a chemical reaction between silver and any phase of the Y-Ba-Cu-O system. It is explained as the result of a segregation of the Y-123 liquid decomposition products (BaCuO2 + CuO) from the Y-123 phase, performed by silver.

Original languageEnglish
Pages (from-to)1174-1178
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Issue numberPART 2
Publication statusPublished - 2002 Aug 1
Externally publishedYes



  • Ag additions
  • Melt-textured YBCO
  • Y-Ba-Cu-O equilibrium diagram

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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