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Title: Dielectric properties of Pb0.5Ba0.5TiO3 ferroelectric ceramics
Authors: Roy, M
Dave, Praniti
Barbar, Shiv Kumar
Jangid, Sumit
Bala, Indu
Keywords: X-ray
Dielectric properties
Ferroelectric ceramics
Bulk density
Issue Date: Feb-2011
Publisher: NISCAIR-CSIR, India
Abstract: The polycrystalline samples of pure and modified lead titanates of general formula Pb1-XBaXTiO3 (X= 0.00, 0.5) have been prepared by high temperature solid state reaction technique using the high purity oxides and carbonates. Preliminary structural studies revealed that the basic structure of PbTiO3 remains unaltered by incorporation of 50% Ba on the A-cation sites of PbTiO3. Morphological changes have been obtained by scanning electron microscopy. The measured bulk density is comparable with that of the theoretical value. The dielectric constant (relative permittivity) of the compounds has been measured as a function of frequency (5 Hz-13 MHz) and temperature (RT to 400oC). The phase transition temperature has been reduced from 490oC in the pure compound to 352oC in the 50% Ba substituted compound.
Page(s): 86-90
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Source:IJEMS Vol.18(1) [February 2011]

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