Perovskite Formation and Dielectric Characteristics of Pb(Zn1/3Ta2/3)O3 with PbTiO3 Substitution |
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| Authors: | Jee-Su Kim Nam-Kyoung Kim Hwan Kim |
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| Affiliation: | Department of Inorganic Materials Engineering, Kyungpook National University, Daegu 702–701, Korea;School of Materials Science and Engineering, Seoul National University, Seoul 151–744, Korea |
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| Abstract: | Perovskite developments in the Pb(Zn1/3Ta2/3)O3–PbTiO3 system were explored. Formation yields and lattice parameters of the perovskite were determined from X-ray diffractometry results. Weak-field low-frequency dielectric properties of the system ceramics were investigated, followed by microstructure examination. Perovskite started to develop in Pb(Zn1/3Ta2/3)O3 after the introduction of 30 mol% PbTiO3, whereas complete stabilization was accomplished at 60% substitution. Dielectric relaxation behavior was not substantial across the entire composition range, whereas phase transition modes changed from diffuse to sharp with increased PbTiO3 fraction. |
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| Keywords: | perovskites pyrochlore tantalum/tantalum compounds lead titanate phases dielectric materials/properties |
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