NMR and XRD study of the influence of the P precursor in sol-gel synthesis of NASICON powders and films

A. Martucci*, S. Sartori, M. Guglielmi, M. L. Di Vona, S. Licoccia, Enrico Traversa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

NASICON (Na3Zr2Si2PO12) has been prepared by a sol-gel route. The progress of the reaction in the liquid has been monitored by means of 31P NMR spectroscopy. The dependence of phase formation and sintering behaviour of films and powders on sol-gel reactions and heat treatments was investigated. X-ray diffraction measurements showed the formation of monoclinic NASICON phase from 800 °C for powders and from 900 °C for films together with free ZrO2. An almost pure NASICON phase was observed in powders calcined at 1000 °C. Sintered pellets showed densities up to 98% of theoretical value. The microstructure of the samples was analysed by scanning electron microscopy.

Original languageEnglish (US)
Pages (from-to)1995-2000
Number of pages6
JournalJournal of the European Ceramic Society
Volume22
Issue number12
DOIs
StatePublished - Nov 1 2002

Keywords

  • Films
  • Ionic conductivity
  • Microstructure-final
  • NASICON
  • Sol-gel processes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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