Microstructural and piezoelectric properties of PZN substituted PMN-PZT ceramics for multilayer piezoelectric transformer |
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| Authors: | Juhyun Yoo Changbae Lee Kwanghyun Chung Dongsoo Paik Yeongho Jeong |
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| Affiliation: | (1) Department of Electrical Engineering, Semyung University, Jecheon, Chungbuk, 390-711, Korea;(2) E2S Technologies Co. Ltd., KITI, Suwon University, Hwaseung, Gyeonggi, 445-743, Korea;(3) Korea Electric Power Research Institute, Yusung-Gu, Daejeon, 305-380, Korea |
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| Abstract: | In this paper, in order to develop the low temperature sintering ceramics for multilayer piezoelectric transformers, Pb[(Mn1/3,Nb2/3)0.07(Zn1/3Nb2/3)a (Zr0.48Ti0.52)1-0.07-aO3] ceramics were prepared with the variations of PZN from 2 to 14 mol% and their dielectric and piezoelectric properties were investigated. Sintering temperature was varied from 940 to 1000∘C. At 8 mol% PZN substituted specimen sintered at 970∘C, electromechanical coupling factor(kp), mechanical quality factor(Qm), dielectric constant and peizoelectric constant(d33) showed the optimal values of 0.536, 1803, 1551 and 328[pC/N], respectively, for multilayer piezoelectric transformer application. |
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| Keywords: | Electromechanical coupling factor (kp) Mechanical quality factor (Qm) Tetragonality |
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