Dielectric Properties and Lattice Distortion in Rhombohedral Phase Region and Phase Coexistence Region of PZT Ceramics |
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Authors: | ZHANG Duan-Ming ZHONG Zhi-Cheng HAN Xiang-Yun YAN Wen-Sheng SUN Hong-Zhang YANG Feng-Xia ZHENG Ke-Yu WEI Nian LI Zhi-Hua |
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Institution: | 1. Department of Physics, Huazhong University of Science and
Technology, Wuhan 430074, China
;2. Faculty of Physics and Electronic Technology, Hubei University,
Wuhan 430062, China
;3. Department of Physics, Xiangfan College, Xiangfan 441053, China |
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Abstract: | In this paper, the relation between the dielectric properties and the
lattice distortion in the phase coexistence region is discussed using a phase statistical distribution model, and in the rhombohedral phase region the two connection equations on the dielectric properties and the lattice distortion are established. Particularly, the relation between the dielectric properties and the lattice distortion is investigated in the phase coexistence region of PZT ceramics, and the fitting value of the volume fraction of the tetragonal phase
VT to composition x in the equation is determined. Further, the fitting results are well consistent with the related experimental data. It involves more profound physical process than relation between the dielectric properties and composition x. |
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Keywords: | lattice distortion dielectric properties rhombohedral phase phase coexistence PZT |
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