| Effect of Zr/Ti Ratio on Piezoelectric and Dielectric
Properties of 0.1Pb[Fe1/2Nb1/2]O3-0.9Pb[ZrxTi(1–x)]O30 Ceramics |
Louanes Hamzioui,a, b, * Fares Kahoul,a, b Abdrazek Guemache,a Michel Aillerie,c, d Ahmed Boutarfaiab
Pages : 60-63
DOI : 10.1080/0371750X.2021.1871647 |
| Abstract |
| This study describes the microstructure, crystal structure, dielectric and piezoelectric
behavior of 0.1Pb[Fe1/2Nb1/2]O3-0.9Pb[ZrxTi(1–x)]O3 (x = 0.49-0.55) ceramics synthesized
by solid-state reaction. Compositions were sintered at 1180oC for 120 min. Dense
and uniform microstructure was seen through microstructural analysis. XRD pattern
confirmed the co-existence of tetragonal and rhombohedral perovskite phases in
these compositions where 0.51 x 0.53. Compositions with 0.51 x 0.53 resulted
in the optimum values of properties, viz. dielectric constant (r) of 1150, piezoelectric
coefficient (d31) of 9510–12 C/N, piezoelectric voltage constant (g31) of 7010–3 mV/N
and the coupling factor (kp) value of 0.67. Results indicated that this material
composition could be suitable for power harvesting and sensor applications.
[Keywords: MPB, Piezoelectricity, Ceramics, Dielectric properties, X-ray methods] |
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