Powder preparation by organic precursor and densification of a high-Tc Bi-based superconductor

A. Tampieri, G. Celotti, F. Ricciardiello, G. Russo

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

Homogeneous and reactive superconducting precursor powders were prepared by the pyroysis technique starting from a solution of citrates. Pyrolyzed organometallic precursors were fired to obtain a superconducting powder: multi-step synthesis at 855°C of only 24 h was found to be adequate to produce a high-purity (2223) phase. Dense superconducting materials were prepared and compared with those obtained from solid-state-reacted powders. To promote densification hot-pressing was used and the effect of the sintering parameters on the compositional, microstructural and functional characteristics of the material was evaluated.

Original languageEnglish (US)
Pages (from-to)300-308
Number of pages9
JournalPhysica C: Superconductivity and its Applications
Volume227
Issue number3-4
DOIs
StatePublished - Jul 1 1994

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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