Preparation of nanocrystalline ferroelectric BaBi2Nb2O9 by citrate gel method

A gel was formed when a aqueous solution of BaCl2, BiCl3, NbF5 and citric acid in stoichiometric ratio is heated on a water bath. This gel on decomposition at 600 DGC produced the nanocrystallites of ternary oxide, BaBi2Nb2O9 (BBN). The phase contents and lattice parameters were studied by the powde...

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Bibliographic Details
Published inMaterials letters Vol. 58; no. 29; pp. 3729 - 3731
Main Authors Gaikwad, S.P., Samuel, Violet, Pasricha, Renu, Ravi, V.
Format Journal Article
LanguageEnglish
Published 01.11.2004
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Summary:A gel was formed when a aqueous solution of BaCl2, BiCl3, NbF5 and citric acid in stoichiometric ratio is heated on a water bath. This gel on decomposition at 600 DGC 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 DGC. The ferroelectric hysteresis loop parameters of these samples were also studied by a home built Sawyer-Tower circuit.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0167-577X
DOI:10.1016/j.matlet.2004.08.004