DIELECTRIC STUDIES OF LAYER STRUCTURED SODIUM - CALCIUM BISMUTH TITANATE MIXED CERAMICS

Authors
SASTRY PSR BHIMASANKARAM T KUMAR GS PRASAD G SURYANARAYANA SV
Citation
Psr. Sastry et al., DIELECTRIC STUDIES OF LAYER STRUCTURED SODIUM - CALCIUM BISMUTH TITANATE MIXED CERAMICS, INDIAN JOURNAL OF ENGINEERING AND MATERIALS SCIENCES, 5(2), 1998, pp. 83-87
Citations number
13
Categorie Soggetti
Engineering,"Material Science
Journal title
INDIAN JOURNAL OF ENGINEERING AND MATERIALS SCIENCES → ACNP
ISSN journal
09714588
Volume
5
Issue
2
Year of publication
1998
Pages
83 - 87
Database
ISI
SICI code
0971-4588(1998)5:2<83:DSOLSS>2.0.ZU;2-E
Abstract
Dielectric properties have been studied on ferroelectric mixed ceramic s comprising bismuth compounds with layer structure (NaBi)(0.5x) Ca1-x Bi4Ti4 O-15 with x = 0,0.1;0.3,0.5,0.7 and 1. The properties have bee n measured as a function of frequency and temperature in the ranges 1 kHz-10 MHz between 35-620 degrees C. AC conductivity is calculated usi ng dielectric constant and loss tangents. Distortion of the Octahedra of the perovskite layers along polarisation axis could be contributing to the spontaneous polarisation.