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

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

doi:10.1016/j.matlet.2004.12.003

Synthesis of Sr_0.5Ba_0.5Nb₂O₆ by urea method

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

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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, Sr_0.5Ba_0.5Nb₂O₆ (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 language	English (US)
Pages (from-to)	1053-1055
Number of pages	3
Journal	Materials Letters
Volume	59
Issue number	8-9
DOIs	https://doi.org/10.1016/j.matlet.2004.12.003
State	Published - Apr 2005

Keywords

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

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matlet.2004.12.003

Cite this

@article{9a17ed1da79e4f1abaa0e51e0fd7beef,

title = "Synthesis of Sr0.5Ba0.5Nb2O6 by urea method",

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.",

keywords = "A: Ceramics, A: Oxides, B: Electron microscopy, D: Ferroelectricity",

author = "Dhage, {S. R.} and Renu Pasricha and V. Ravi",

note = "Funding Information: One of the authors (V.R) acknowledges the Department of Science and Technology (DST) India, grant no. SP/S1/ H-19/2000 for financial assistance.",

year = "2005",

month = apr,

doi = "10.1016/j.matlet.2004.12.003",

language = "English (US)",

volume = "59",

pages = "1053--1055",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

number = "8-9",

}

TY - JOUR

T1 - Synthesis of Sr0.5Ba0.5Nb2O6 by urea method

AU - Dhage, S. R.

AU - Pasricha, Renu

AU - Ravi, V.

N1 - Funding Information: One of the authors (V.R) acknowledges the Department of Science and Technology (DST) India, grant no. SP/S1/ H-19/2000 for financial assistance.

PY - 2005/4

Y1 - 2005/4

N2 - 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.

AB - 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.

KW - A: Ceramics

KW - A: Oxides

KW - B: Electron microscopy

KW - D: Ferroelectricity

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U2 - 10.1016/j.matlet.2004.12.003

DO - 10.1016/j.matlet.2004.12.003

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VL - 59

SP - 1053

EP - 1055

JO - Materials Letters

JF - Materials Letters

IS - 8-9

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