期刊
JOURNAL OF ADVANCED CERAMICS
卷 3, 期 1, 页码 17-30出版社
SPRINGEROPEN
DOI: 10.1007/s40145-014-0089-x
关键词
ceramics; sintering; light scattering; dielectric properties
In this study, we investigated the effect of sintering temperature on densification, grain size, conductivity and dielectric properties of Sr1-x(Na0.5Bi0.5)(x)Bi2Nb2O9 ceramics, prepared by hydrothermal method. Pellets were sintered at different temperatures. Density increased with sintering temperature, reaching up to 96% at 800 degrees 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.
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