Synthesis of Sr0.5Ba0.5Nb2O6 by urea method

S. R. Dhage, Renu Pasricha, V. Ravi

Research output: Contribution to journalArticle

Abstract

A precipitate was formed when an aqueous solution of SrCl2, BaCl2, NbF5 and urea in stoichiometric ratio (total metal cations to urea ratio is 5) is heated on a water bath.. This precipitate on decomposition at 750 °C yielded the nanocrystallites of ternary oxide, Sr0.5Ba0.5Nb2O6 (SBN) as confirmed by X-ray diffraction study (XRD). This is much lower temperature as compared to that prepared by traditional solid state method (1000 °C) as reported for the formation of SBN ceramics. 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 1050. The ferroelectric hysteresis loop parameters of these samples were also studied.

Original languageEnglish (US)
Pages (from-to)1053-1055
Number of pages3
JournalMaterials Letters
Volume59
Issue number8-9
DOIs
StatePublished - Apr 1 2005

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ureas
Urea
Precipitates
precipitates
Nanocrystallites
synthesis
Hysteresis loops
Powders
Oxides
Ferroelectric materials
Cations
baths
Permittivity
Electron microscopes
electron microscopes
Positive ions
Metals
Particle size
hysteresis
ceramics

Keywords

  • A: Ceramics
  • A: Oxides
  • B: Electron microscopy
  • D: Ferroelectricity

ASJC Scopus subject areas

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

Cite this

Synthesis of Sr0.5Ba0.5Nb2O6 by urea method. / Dhage, S. R.; Pasricha, Renu; Ravi, V.

In: Materials Letters, Vol. 59, No. 8-9, 01.04.2005, p. 1053-1055.

Research output: Contribution to journalArticle

Dhage, S. R. ; Pasricha, Renu ; Ravi, V. / Synthesis of Sr0.5Ba0.5Nb2O6 by urea method. In: Materials Letters. 2005 ; Vol. 59, No. 8-9. pp. 1053-1055.
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