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Influence of YTS addition on structural and electrical properties of PZT-based ceramics

Djoudi Yasmina (Université de Ouargla, Département Génie des Procédés, Laboratoire de Dynamique, Interaction et Réactivité des Systèmes, Ouargla, Algeria), djoudiyasmina1@gmail.com
Kahoul Fares (Université de M’Sila, Département Socle Commun ST, Faculté de Technologie, M’Sila, Algeria + Université de Biskra, Département de Chimie, Laboratoire de Chimie Appliquée, Biskra, Algeria), fares.kahoul@univ-msila.dz
Hamzioui Louanes (Université de M’Sila, Département Socle Commun ST, Faculté de Technologie, M’Sila, Algeria + Université de Biskra, Département de Chimie, Laboratoire de Chimie Appliquée, Biskra, Algeria)
Guemache Abderrezak (Université de M’Sila, Département Socle Commun ST, Faculté de Technologie, M’Sila, Algeria)

Perovskite solid solution (1-x)Pb(Zr0.52Ti0.48)O3-xY(Ta1/2Sb1/2)O3 ceramics (abbreviated as PZT-YTS, where x = 0, 0.01, 0.02, 0.03, 0.04 and 0.05) were synthesized by conventional solid state method. The phase structure, microstructure and corresponding electrical properties were studied. X-ray diffraction and Raman analyses show that tetragonal phase structure was obtained in all ceramics at room temperature. Scanning electron micrographs of the samples show uniform grain distribution and grain growth inhibition with the increase of doping content. The dielectric permittivity, dissipation factor, electromechanical coupling factor, Young modulus, mechanical quality factor, piezoelectric charge constant, actual density and piezoelectric voltage constant, for the ceramics with x = 0.04 were: εr = 714.9, tan δ = 0.03345, KP = 0.635, Y = 10.528 × 1010 N/m2, Qm = 622.254, d31 = 74.738 × 10−12 C/N, ρa = 7.67 g/cm3 and g31 = 10.477 × 10−3 m•V/N, respectively, which are optimal in comparison to other studied samples.

Keywords: PZT ceramics, sintering, SEM, piezoelectric properties, resistivity