http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
음향 방출 센서용 Pb(Zn,Ni,Nb)O<sub>3</sub>-Pb(Zr,Ti)O<sub>3</sub> 세라믹스의 유전 및 압전 특성
한종대,류주현,정회승,서동희,Han, Jong-Dae,Yoo, Ju-Hyun,Jeong, Hoy-Seung,Seo, Dong-Hir 한국전기전자재료학회 2016 전기전자재료학회논문지 Vol.29 No.8
In this study, in order to develop composition ceramics for Acoustic Emission (abbreviated as AE) sensor application, the PZT system ceramics was fabricated by conventional solid state reaction method. When x=0.48, the density, electromechanical coupling factor($k_p$), piezoelectric coefficient $d_{33}$ and piezoelectric voltage constant $g_{33}$ of the maximum values of $7.857g/cm^3$, 0.51, 190[pC/N], 52[$10^{-3}mV/N$] were obtained, respectively, suitable for AE sensor.
이갑수,류주현,홍재일,이석태,김용운,정회승,Lee, Kab-Soo,Yoo, Ju-Hyun,Hong, Jae-Il,Lee, Seok-Tae,Kim, Yong-Woon,Jeong, Hoy-Seung 한국전기전자재료학회 2007 전기전자재료학회논문지 Vol.20 No.1
In this paper, lead-free [$Li_{0.04}(Na_{y}K_{1-y})_{0.96}](Nb_{0.86}Ta_{0.1}Sb_{0.04})O_{3}$ (y=0.4 - 0.58) ceramics were manufactured using conventional miked oxide method for acoustic emission(AE) sensor application and their dielectric and piezoelectric properties were investigated with the variations of Na/K ratio. The samples in the composition Na/K=54/46 exhibited excellent electrical properties of $d_{33}=300$ PC/N and kp=0.49. Taking into consideration above piezoelectric properties, it can be concluded that the [$Li_{0.04}(Na_{y}K_{1-y})_{0.96}](Nb_{0.86}Ta_{0.1}Sb_{0.04})O_{3}$ system ceramics are the promising lead-free materials capable of substituting PZT system ceramics.
하소온도변화에 따른 초음파절삭기용 PMN-PNN-PZT 세라믹스의 압전 및 유전 특성
류주현,김승원,서동희,이은섭,최낙구,정회승,Yoo, Ju-Hyun,Kim, Seung-Won,Seo, Dong-Hi,Lee, Eun-Sup,Choi, Nak-Gu,Jeong, Hoy-Seung 한국전기전자재료학회 2017 전기전자재료학회논문지 Vol.30 No.3
In this paper, $Pb(Mn_{1/3}Nb_{2/3})_{0.07}(Ni_{1/3}Nb_{2/3})_{0.10}(Zr_{0.5}Ti_{0.5})_{0.83}O_3$ ceramics were fabricated by the conventional solid state method to obtain excellent dielectric properties for ultrasonic generators. The effects of 2nd calcination temperature on their microstructure and piezoelectric properties were systematically investigated. The tetragonality increased in the ceramics when 2nd calcination temperature increased to the optimized temperature at $750^{\circ}C$. At that temperature, excellent physical properties ($d_{33}=352\;pC/N$, ${\varepsilon}_r=1,687$, $k_p=0.570$, $Q_m=1,640$) were obtained for ultrasonic generator application.