Nguyen Van Thinha,c, Le Dai Vuongb,*, Do Viet Ona, Truong Van Chuonga, Le Vu Truong Sond, Trinh Ngoc Datd, Le Van Thanh Sond and Vo Thanh Tunga
aUniversity of Sciences, Hue University, Hue City, Vietnam
bSchool of Engineering and Technology - Hue University, Hue City, Vietnam
cUniversity of Technology and Education, The University of Danang, Da Nang City, Vietnam
dUniversity of Science and Education, The University of Danang, Da Nang City, Vietnam
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(1-x)[(Pb0.94Sr0.05La0.01)(Zr0.54Ti0.46)0.9975O3]-x[Bi(Mn1/2Ti1/2)O3] (PSLZT-BMT) ferroelectric material ceramics with x in the range of 0-0.05 mol were successfully synthesized following the conventional solid-phase route. The materials were thoroughly investigated to study their structural phase, microstructure, ferro-piezoelectric characteristics, and dielectric behavior. The experimental results show that the density of the samples decreased from 7.75 to 7.58 g/cm3, and the relative density decreased in the range of 98.48%-96.28%. However, with increasing contents of BMT, the dielectric and ferroelectric properties of PSLZT-BMT ceramics tend to decrease, specifically the maximum dielectric constant (εmax) of PSLZT-BMT decreased in the range of 23579-9991 and the residual polarization (Pr) decreases in the range of 22.54-7.87 µC/cm2 when the doping content increased in the range of 0.0-0.05 mol. The diffusivity values (γ) of the PSLZT-BMT material are 1.74, 1.78, 1.82, 1.84, 1.79, and 1.77 when the doping content x varies as 0.0, 0.01, 0.02, 0.03, 0.04, and 0.05 mol, respectively, which is characteristic of relaxor ferroelectric materials. Besides, the Tm, TB, TC-W, and C values depend on BMT concentration, and the trend decreases
Keywords: PSLZT-BMT, Ferroelectric materials, Dielectric materials, Relaxor materials, Ceramics
2023; 24(3): 478-485
Published on Jun 30, 2023
School of Engineering and Technology - Hue University, Hue City, Vietnam