Effects of Sr2+ substitution on the structural, dielectric, and piezoelectric properties of PZT-PMN ceramics
来源期刊:International Journal of Minerals Metallurgy and Materials2014年第2期
论文作者:Arvind Kumar S.K. Mishra
文章页码:175 - 180
摘 要:This study described the structural,dielectric,and piezoelectric behavior of Pb1-x Sr x[(Zr0.52Ti0.48)0.95(Mn1/3Nb2/3)0.05]O3ceramics(PSZT-PMN,x=0,0.025,0.050,and 0.075),prepared by a semi-wet route.X-ray diffraction,dielectric,and piezoelectric investigations were carried out to analyze the crystal structure.The relative dielectric constant and dielectric loss were both calculated as the functions of temperature.The room-temperature dielectric constant reaches a maximum for a Sr2+-modified PZT-PMN ceramic with an x value of 0.050,which corresponds to the morphotropic phase boundary(MPB).Raman spectroscopy studies also confirm the existence of this MPB for x=0.050.The piezoelectric strain coefficients(d33)value shows a maximum response for this composition.In addition,the phase transition temperature decreases significantly when the Sr2+concentration increases in the PZT-PMN ceramics.
Arvind Kumar,S.K. Mishra
Research and Technology Development Centre, Sharda University
摘 要:This study described the structural,dielectric,and piezoelectric behavior of Pb1-x Sr x[(Zr0.52Ti0.48)0.95(Mn1/3Nb2/3)0.05]O3ceramics(PSZT-PMN,x=0,0.025,0.050,and 0.075),prepared by a semi-wet route.X-ray diffraction,dielectric,and piezoelectric investigations were carried out to analyze the crystal structure.The relative dielectric constant and dielectric loss were both calculated as the functions of temperature.The room-temperature dielectric constant reaches a maximum for a Sr2+-modified PZT-PMN ceramic with an x value of 0.050,which corresponds to the morphotropic phase boundary(MPB).Raman spectroscopy studies also confirm the existence of this MPB for x=0.050.The piezoelectric strain coefficients(d33)value shows a maximum response for this composition.In addition,the phase transition temperature decreases significantly when the Sr2+concentration increases in the PZT-PMN ceramics.
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