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Elaboration and characterization of BZT lead-free ceramic prepared in chemical way and with the addition of a sintering aid (LBCU)

Abstract : The Barium Titanates are very promising materials ecologically, but still have poor piezoelectric properties compared to the Lead Zirconate Titanates. So in order to improve them, a substitution of the zirconium in our ceramic (BT) has been investigated by X-ray diffraction (XRD) and grain size distribution. After the preparation of the BZT powder in chemical way we have added a sintering aid (Li2O3 - Bi2O3-CuO) and we have tried to study our massive ceramic. The X-ray diffraction, grain size distribution and scanning electron microscope of the BZT with LBCu show a better particles arrangement and density. In other hand we have noticed an important improvement of the piezoelectric properties (d33 = 220 pC/N at 25°C) especially in comparison with other lead-free ceramics. These properties make BZT a lead-free high performance material for piezoelectric applications.
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Submitted on : Monday, January 25, 2021 - 12:12:09 PM
Last modification on : Tuesday, October 19, 2021 - 6:38:21 PM

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Madiha Yessari, Abdelowahed Hajjaji, Mohamed Rguiti, Sarah Aboubakr, A. Arbaoui. Elaboration and characterization of BZT lead-free ceramic prepared in chemical way and with the addition of a sintering aid (LBCU). Molecular Crystals and Liquid Crystals, Taylor & Francis, 2016, 628 (1), pp.130-138. ⟨10.1080/15421406.2015.1137150⟩. ⟨hal-03120103⟩

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