Study of the sintering behaviour of MgB2 superconductor during hot-pressing

A. Tampieri, G. Celotti, S. Sprio, R. Caciuffo, D. Rinaldi

Research output: Contribution to journalArticle

35 Scopus citations

Abstract

The densification behaviour of MgB2 was studied when commercial powder was hot-pressed in the temperature range 1070-1190 °C. The mechanisms active during sintering were investigated by continuously recording the shrinkage vs. time and elaborating the data on the basis of Kingery's model for liquid phase sintering. XRD and SEM analysis on final dense bodies were used to evaluate secondary phases formation during sintering and the effect of magnesium sublimation. AC magnetic susceptibility measurements were also performed to correlate the microstructural and morphological modifications induced by hot-pressing and the superconducting properties.

Original languageEnglish (US)
Pages (from-to)97-104
Number of pages8
JournalPhysica C: Superconductivity and its Applications
Volume400
Issue number3-4
DOIs
StatePublished - Jan 1 2004

Keywords

  • Hot pressing
  • Kingery's model
  • MgB

ASJC Scopus subject areas

  • Condensed Matter Physics

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