A coprecipitation technique to prepare BaNb2O6

N. Natarajan, Violet Samuel, Renu Pasricha, V. Ravi

Research output: Contribution to journalArticle

Abstract

A mixture of ammonium oxalate and ammonium hydroxide was used to coprecipitate barium and niobium ions as barium oxalate and niobium hydroxide under basic conditions. This precursor on calcination at 750°C yielded BaNb2O6 ceramics. This is a much lower temperature as compared to that prepared by traditional solid-state method (1000°C), as reported for the formation of BaNb2O6. Transmission electron microscope (TEM) investigations revealed that the average particle size is 100 nm for the calcined powders. The room temperature dielectric constant at 1 kHz is found to be 1100. The ferroelectric hysteresis loop parameters of these samples were also studied.

Original languageEnglish (US)
Pages (from-to)169-171
Number of pages3
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume117
Issue number2
DOIs
StatePublished - Mar 15 2005

Fingerprint

Niobium
oxalates
Barium
Coprecipitation
niobium
hydroxides
barium
Ammonium Hydroxide
Ammonium hydroxide
Oxalic Acid
Oxalates
Hysteresis loops
Powders
Calcination
roasting
Ferroelectric materials
Permittivity
Electron microscopes
electron microscopes
Particle size

Keywords

  • Ammonia
  • Ceramics
  • Electron microscopy
  • Niobium oxide
  • Oxides

ASJC Scopus subject areas

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

Cite this

A coprecipitation technique to prepare BaNb2O6 . / Natarajan, N.; Samuel, Violet; Pasricha, Renu; Ravi, V.

In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology, Vol. 117, No. 2, 15.03.2005, p. 169-171.

Research output: Contribution to journalArticle

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