Preparation of nanocrystalline ferroelectric BaBi2Nb 2O9 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, BiCl 3, NbF5 and citric acid in stoichiometric ratio is heated on a water bath. This gel on decomposition at 600°C produced the nanocrystallites of ternary oxide, BaBi2Nb2O9 (BBN). The phase contents and lattice parameters were studied by the powder X-ray diffraction (XRD). Particle size and morphology was studied by transmission electron spectroscopy (TEM). The room temperature dielectric constant at 1 kHz is 90°C. The ferroelectric hysteresis loop parameters of these samples were also studied by a home built Sawyer-Tower circuit.

Original languageEnglish (US)
Pages (from-to)3729-3731
Number of pages3
JournalMaterials Letters
Volume58
Issue number29
DOIs
StatePublished - Nov 2004

Keywords

  • Dielectric properties
  • Electron microscopy
  • Ferroelectric properties
  • Powders chemical preparation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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