Preparation of nanocrystalline ferroelectric BaNb2O6 by citrate gel method

S. P. Gaikwad, Violet Samuel, Renu Pasricha, V. Ravi

Research output: Contribution to journalArticle

Abstract

A gel was formed when a aqueous solution of BaCl2, NbF 5 and citric acid in stoichiometric ratio is heated on a water bath. This gel on decomposition at 600°C yielded the nano crystallites of BaNb2O6, as confirmed by X-ray diffraction study (XRD). This is a much lower temperature as compared to that prepared by traditional solid state method (1000°C) as reported for the formation of BaNb 2O6. Transmission electron microscopic (TEM) investigations revealed that the average particle size is 50 nm for the calcined powders. The room temperature dielectric constant at 1 kHz is found to be 1000. The ferroelectric hysteresis loop parameters of these samples were also studied.

Original languageEnglish (US)
Pages (from-to)121-123
Number of pages3
JournalBulletin of Materials Science
Volume28
Issue number2
DOIs
StatePublished - Apr 2005

    Fingerprint

Keywords

  • Ceramics
  • Chemical synthesis
  • Electronic material
  • Ferroelectricity
  • Oxides

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials

Cite this