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Effect of sintering temperature on microstructure and electrical properties of Sr^sub 1-x^(Na^sub 0.5^Bi^sub 0.5^)^sub x^Bi^sub 2^Nb^sub 2^O^sub 9^ solid solutions

In this study, we investigated the effect of sintering temperature on densification, grain size, conductivity and dielectric properties of Sr^sub 1-x^(Na^sub 0.5^Bi^sub 0.5^)^sub x^Bi^sub 2^Nb^sub 2^O^sub 9^ ceramics, prepared by hydrothermal method. Pellets were sintered at different temperatures....

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Bibliographic Details
Published in:Journal of advanced ceramics 2014-03, Vol.3 (1), p.17
Main Authors: Naceur, Hana, Megriche, Adel, El Maaoui, Mohamed
Format: Article
Language:English
Online Access:Get full text
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Summary:In this study, we investigated the effect of sintering temperature on densification, grain size, conductivity and dielectric properties of Sr^sub 1-x^(Na^sub 0.5^Bi^sub 0.5^)^sub x^Bi^sub 2^Nb^sub 2^O^sub 9^ ceramics, prepared by hydrothermal method. Pellets were sintered at different temperatures. Density increased with sintering temperature, reaching up to 96% at 800 °C. A grain growth was observed with increasing sintering temperature. Impedance spectroscopy analyses of the sintered samples at various temperatures were performed. Increase in dielectric constant and in Curie temperature with sintering was discussed. Electrical conductivity and activation energy were calculated and attributed to the microstructural factors.
ISSN:2226-4108
2227-8508
DOI:10.1007/s40145-014-0089-x