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저온소결 PMgN-PMnN-PZT 세라믹스의 압전 및 유전 특성
이상호(Sangho Lee),류주현(Juhyun Yoo),홍재일(Jaeil Hong),정광현(Kwanghyun Chung),정영호(Youngho Jeong) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
In this study, in order to develop low temperature sintering piezoelectric ceramics for multilayer piezoelectric actuator, PbSr(Mn<SUB>1/3</SUB>Nb<SUB> 2/3</SUB>)O₃-(Mg<SUB>1/3</SUB>Nb<SUB>3/2</SUB>)O₃-(ZrTi)O₃ ceramics were fabricated using Na₂CO₃-Li₂CO₃ as sintering aids and their piezoelectric and dielectric characteristics were investigated according to the sintering temperature. At the sintering temperature of 900℃, the density, electrom echanical coupling factor(kp), mechanical quality factor(Qm) and dielectric constant(εr) of specimen showed the optimum value of 7.730[g/㎤], 0.552, 1134, 1492 and 330[pC/N], respectively.
두께 진동모드 적층형 압전 변압기의 유한요소 시뮬레이션
유경진(Kyungjin Yoo),이상호(Sangho Lee),류주현(Juhyun Yoo),홍재일(Jaeil Hong),손은영(Eunyoung Son) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
In this study, vibration mode multilayer piezoelectric transformer was designed and thickness simulated using ANSYS of finite element method simulator for investigating its optimum conditions ist. As a results, resonant frequency was decreased with the increase of output layer thickness, Output voltage, maximum displacement and maximum stress at 0.34㎜ thickness transformer were 228.1 V, 0.42㎛, 8.78[N/㎡] respectively.