Diffuse transition and piezoelectric properties of Pb[(Zr1−xTix)0.74(Mg1/3Nb2/3)0.20(Zn1/3Nb2/3)0.06]O3 Ceramics |
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Authors: | Chun Huy Wang |
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Affiliation: | Department of Electronic Engineering, Nan-Jeon Institute of Technology, Tainan, Taiwan, 737, R.O.C. |
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Abstract: | In this work, the piezoelectric ceramic system of Pb(Zr1−xTix)0.74(Mg1/3Nb2/3)0.20(Zn1/3Nb2/3)0.06]O3, 0.47≤x≤0.57, with composition close to the morphotropic phase boundary, was studied. From the results of X-ray diffraction and piezoelectric measurement, ceramics near x=0.51 were found at the morphotropic phase boundary (MPB) between the tetragonal and pseudocubic perovskite. The planar coupling factor (kp=0.72) is high at compositions near the MPB, but the mechanical quality factor (Qm=75) is low. The calculation of the diffuseness of phase transition shows that the region of phase coexistence of this system is broader than that of the ternary system. |
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Keywords: | A Ceramic C X-ray diffraction D Dielectric properties D Piezoelectric properties |
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