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http://dx.doi.org/10.4191/KCERS.2005.42.10.698

Dielectric and Piezoelectric Properties of Pb(Zr1/2Ti1/2)O3-Pb(Cu1/3Nb2/3)O3-Pb(Mn1/3Nb2/3)O3 System  

Lee, Hyeung-Gyu (Electronic Materials and Packaging Research Center, KETI)
Kang, Hyung-Won (Electronic Materials and Packaging Research Center, KETI)
Choi, Ji-Hyun (Electronic Materials and Packaging Research Center, KETI)
Publication Information
Journal of the Korean Ceramic Society / v.42, no.10, 2005 , pp. 698-702 More about this Journal
Abstract
Dielectric and Piezoelectric properties of complex perovskite 0.92Pb($Zr_{1/2}Ti_{1/2})O_{3}-(0.08-x)Pb(Cu_{1/3}Nb_{2/3})O_{3}-xPb(Mn_{1/3}Nb_{2/3})O_{3}(0{\leq}x{\leq}0.080$) (PZT-PCN-PMN) system were investigated as a function of PMN content. With the increase of PMN content of the sintered specimens, tetragonal phase was coexisted with rhombohedral phase, the dielectric constant was decreased, mechanical quality factor ($Q_{m}$) was inceased, and optimal sintering temperature was increased up to 1050$^{\circ}C$. For the composition of x = 0.064 sintered at 1050$^{\circ}C$ for 2 h, 1939 of maximum mechanical quality factor ($Q_{m}$), 57$\%$ of electromechanical coupling factor ($k_{p}$), and 1100$^{\circ}C$ of dielectric constant, 0.37$\% $ of dielectric loss (tan $\delta$) were obtained.
Keywords
Dielectric constant; Mechanical quality factor; Electromechanical coupling factor; Dielectric loss;
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