Piezoelectric and Dielectric Properties of (LiNaK)(NbTaSb)O3 Ceramics with Variation in Poling Temperature
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概要
- 論文の詳細を見る
In this study, lead-free (LiNaK)(NbTaSb)O3 piezoelectric ceramics were fabricated on the basis of the amount of K2CO3 addition, and their piezoelectric and dielectric properties were investigated by varying the amount of K2CO3 addition and poling temperature. First, to achieve optimum poling conditions for manufactured specimens, the poling temperature was varied to be 0, 20, 50, 80, and 110 °C. The optimum poling temperature was 20 °C. It was found that 0.1 wt % K2CO3-added (Li0.04Na0.44K0.52) (Nb0.86Ta0.1Sb0.04)O3 ceramics exhibit excellent piezoelectric properties in an experiment performed on the basis of the amount of K2CO3 addition. That is, a 0.1 wt % K2CO3-added specimen showed a large electromechanical coupling factor $k_{p}=0.494$, a large piezoelectric constant $d_{33}=274$ pC/N, and a high density of 4.65 g/cm3 at the poling temperature of 20 °C.
- 2006-09-30
著者
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Chung Kwanghyun
Department Of Electrical And Electronic Engineering Toyohashi University Of Technology
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Ryu Sunglim
Department Of Materials Science And Engineering Chungju University
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Yoo Juhyun
Department Of Electrical Engineering Semyong University
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Chung Kwanghyun
Department of Electrical Engineering, Semyung University, Jechon, Chungbuk 390-711, Korea
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Lee Sangho
Department of Electrical Engineering, Semyung University, Jechon, Chungbuk 390-711, Korea
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Lee Kabsoo
Department of Electrical Engineering, Semyung University, Jechon, Chungbuk 390-711, Korea
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Kim Kookjin
Department of Electrical Engineering, Semyung University, Jechon, Chungbuk 390-711, Korea
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Hong Jaeil
Department of Electrical Information Control, Dongseoul College, Seongnam, Kyunggi 461-714, Korea
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Lhee Chingook
Department of Electrical Engineering, Chungju National University, Chungju, Chungbuk 380-702, Korea
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Lee Kabsoo
Department of Electrical Engineering, Semyung University, Jecheon, Chungbuk 390-711, Korea
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Ryu Sunglim
Department of Advanced Materials Engineering, Chungju National University, Chungju, Chungbuk 380-702, Korea
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Kim Kookjin
Department of Electrical Engineering, Semyung University, Jecheon, Chungbuk 390-711, Korea
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Yoo Juhyun
Department of Electrical Engineering, Semyung University, Jechon, Chungbuk 390-711, Korea
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