Study of Dielectric and Piezoelectric Properties in the Ternary System Pb<sub>0.98</sub>Ca<sub>0.02</sub>[{(Zr<sub>0.52</sub>Ti<sub>0.48</sub>)<sub>0.98</sub>(Cr<sup>3+</sup><sub>0.5</sub>, Ta<sup>5+</sup><sub>0.5</sub>)<sub>0.02</sub>}<sub>1–z</sub>P<sub>z</sub>]O<sub>3</sub>Doping Effects
Study of Dielectric and Piezoelectric Properties in the Ternary System Pb<sub>0.98</sub>Ca<sub>0.02</sub>[{(Zr<sub>0.52</sub>Ti<sub>0.48</sub>)<sub>0.98</sub>(Cr<sup>3+</sup><sub>0.5</sub>, Ta<sup>5+</sup><sub>0.5</sub>)<sub>0.02</sub>}<sub>1–z</sub>P<sub>z</sub>]O<sub>3</sub>Doping Effects作者机构：不详
出 版 物：《Materials Sciences and Applications》 (材料科学与应用期刊（英文）)
年 卷 期：2012年第3卷第1期
页 面：41-49页
学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
主 题：PZT Piezoelectricity Electronic Materials Dielectric Properties Methods Physico-Chemical of Analysis
摘 要：The effects of P2O5 oxide on microstructure, dielectric and piezoelectric properties of Pb0.98Ca0.02[{(Zr0.52Ti0.48)0.98( Cr3+1/2,Ta5+1/2)0.02}1–zPz]O3 ternary ceramics were investigated. Specimens with various contents of P2O5 from 0 to 12 wt. % were prepared by a conventional oxide mixing technique. The effect of P2O5 doping with regard to the development of the crystalline phase, density, microstructure, dielectric, ferroelectric and piezoelectric characteristics has been investigated. It has been found that the sintering temperature of piezoelectric Pb0.98Ca0.02[{(Zr0.52Ti0.48)0.98(Cr3+1/2,Ta5+1/2)0.02}1–zPz]O3 can be reduced by phosphorus addition without compromising the dielectric properties. A sintered density of 94 % of the theoretical density was obtained for 4 wt. % P2O5 addition after sintering at 1050°C for 4 h. Ceramics sintered at 1050°C with 4 wt. % P2O5 achieve excellent properties, which are as follows: kp = 0.73, ρ = 0.09 × 10+4 (Ω. cm), εr = 18800, tanδ = 0.0094 and Tc = 390°C.
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