The Influence of the Sintering Temperature on the Properties of the 0.98Pb(Zr1-xTix)O3 - 0.02La(Fe3+0.5, Nb5+0.5)O3 Ceramic Systems

Alina Iulia Dumitru; Georgeta Velciu; Delia Patroi; Jana Pintea; Virgil Marinescu; Ildiko Peter

doi:10.4028/www.scientific.net/MSF.1016.1134

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The Influence of the Sintering Temperature on the Properties of the 0.98Pb(Zr_1-xTi_x)O₃ - 0.02La(Fe³⁺_0.5, Nb⁵⁺_0.5)O₃ Ceramic Systems
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HomeMaterials Science ForumMaterials Science Forum Vol. 1016The Influence of the Sintering Temperature on the...

The Influence of the Sintering Temperature on the Properties of the 0.98Pb(Zr_1-xTi_x)O₃ - 0.02La(Fe³⁺_0.5, Nb⁵⁺_0.5)O₃ Ceramic Systems

Abstract:

The ferroelectric solid solutions described by a general formula 0.98Pb(Zr_1-xTi_x)O₃ – 0.02La(Fe³⁺_0.5, Nb⁵⁺_0.5)O₃ have been obtained by solid state reaction technique, where x assumes the following values: 0.42, 0.48 and 0.58. The structure of these ferroelectric compositions has been investigated in detail using X-ray diffraction analysis (XRD) and Scanning Electron Microscopy (SEM). The results obtained by XRD have evidenced that all obtained samples have a perovskite structure. The influence of the sintering temperature on the degree of incorporation of the elements in the solid solution have been studied too. The dielectric and piezoelectric constants have been determined and the influence of temperature on obtained values are presented and discussed. The performed experimental results have pointed out that the materials are characterized by a high anisotropy. Furthermore, the obtained values of the electromechanical coupling factor (k_p) is situated between 0.40÷0.65 depending on the composition and the sintering temperature too.

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Periodical:

Materials Science Forum (Volume 1016)

Pages:

1134-1140

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1016.1134

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Online since:

January 2021

Authors:

Alina Iulia Dumitru, Georgeta Velciu, Delia Patroi, Jana Pintea, Virgil Marinescu, Ildiko Peter*

Keywords:

Dielectric Properties, High Anisotropy, Lead Zirconate Titanate (PZT) Ceramics, Piezoelectric Properties

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