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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.18 [2011] >
IJEMS Vol.18(1) [February 2011] >
| Title: | Dielectric properties of Pb0.5Ba0.5TiO3 ferroelectric ceramics |
| Authors: | Roy, M
Dave, Praniti
Barbar, Shiv Kumar
Jangid, Sumit
Bala, Indu |
| Keywords: | X-ray
SEM
Dielectric properties
Pb0.5Ba0.5TiO3
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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