Abstract

Lamiae Mrharrab¹*, Abdelhalim Elbasset² and Salaheddine Sayouri¹

DOI : http://dx.doi.org/10.13005/ojc/320509

Physical and chemicalproperties of BaTiO₃ (BT) and BaTi_0.95Zr_0.05O₃ (BZT0.05) ceramics have been studied. Thesepowders are prepared by the Sol-gel process and calcinedatdifferenttemperatures [500°C-1000°C]. X-Ray Diffraction (XRD) showed a crystallization of BT and BZT0.05 powders in the perovskite phase after a calcination temperatureat 600 °C, during 4 hours, but in the presence of some traces of zirconium oxide for the dopedpowder. Also, the effect of zirconium addition on dielectricproperties to BT isanalyzed. Indeed, dielectricmeasurementscarried out have shown the presence of a second anomaly for Zr dopedmaterialat 60 °C; an anomalythat has been attributed to structural transition.

Sol-gel Process; XRD; DielectricMeasurements; Anomalies

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