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http://dx.doi.org/10.4313/TEEM.2002.3.3.025

Microstructural, Dielectric and Electrical Properties of(Pb,La,Ce)TiO3 Ceramics for High Frequency Ceramic Resonator as a function of MnO2 Addition  

Yoo, Ju-Hyung (Department of Electronics Engineering, Semyung University.)
Oh, Dong-On (Department of Electronics Engineering, Semyung University.)
Park, Chang-Yub (Department of Electronics Engineering, Semyung University.)
Kim, Ji-Hong (Department of Electronics Engineering Semyung University)
Lee, Sung-Ill (Department of safety Engineering Chungju University)
Ryu, Sung-Lim (Department for Materials Science and Engineering Chungju University)
Publication Information
Transactions on Electrical and Electronic Materials / v.3, no.3, 2002 , pp. 25-28 More about this Journal
Abstract
In this study, microstructural, dielectric and electrical properties of (Pb$\sub$0.83/) (La$\sub$0.2/Ce$\sub$0.8/)$\sub$0.08/TiO$_3$(PCT) ceramics as a function of MnO$_2$ addition and electrode size variation were investigated for 30 MHz high frequency ceramic resonator application. Grain size was gradually increased according to the increase of MnO$_2$ addition amount. Moreover, the density showed a constant value with increasing MnO$_2$ addition amount. Dielectric constant was decreased with increasing MnO$_2$ addition amount. Curie temperature of all the composition ceramics was nearly constant around 330$^{\circ}C$. The maximum D.R.of 50.5 dB and maximum Q$\sub$mt3/ of 1842 in the 3$\^$rd/ overtone vibration mode were appeared at the composition of 0.3wt% MnO$_2$, respectively.
Keywords
30 MHz high frequency ceramic resonator; Grain size; dynamic range (D.R.);
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