Özet:

In this study, 1 mol% B3+ doped 0.94(Bi0.5Na0.5)TiO3-0.06BaTiO3 (BNT-6BT) ceramics were synthesized by using domestic boron (B2O3) raw material via solid-state reaction. Disc shaped samples were prepared by hydraulic pressing (pre-shaping) and cold isostatic pressing (CIP) after determining the phase formation by using X-ray diffraction (XRD) following a calcination process. Samples were sintered at 1100, 1150 and 1200°C temperatures for 12 hours in air atmosphere after binder burn out process. Prior to structure and property characterization, density measurements of samples were performed by the Archimedes method. Samples were coated with gold (Au) for microstructure investigation via scanning electron microscope (SEM) and electrical measurements. Dielectric (εr, tanδ), piezoelectric (d33) and ferroelectric (P-E hysteresis loop) properties of all domestic boron doped samples prepared in this study were measured and the results were compared with the studies on undoped and commercial B2O3 doped BNT-6BT ceramics in the literature. Overall, the results show that the domestic boron can be used as a property improving dopant in the synthesis of piezoelectric materials.

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