Transactions on Electrical and Electronic Materials

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
권호 표지
DOI QR코드

DOI QR Code

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)
  • Published : 2002.09.01
Download PDF
⟨ Previous Next ⟩

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

References

  1. D. O. Oh, S. K. Min, K. H. Yoon, J. H. Yoo, and C. Y. Park, 'Microstructural properties of (Pb)(La,Ce)TiO$_3$ ceramics as a function of Mn02 addition', Proc. 2001 Autumn Conf. KIEMME, p. 442, 2001
  2. S. K. Min, J. H. Yoo, C. Y. Park, and H. S. Yoon, 'Effect of CuO on the microstructural and electrical properties of (Pb)(La,Nd)Ti0$_3$ ceramics', Proc. 2001 Autumn Conf. KIEMME, p. 446, 2001
  3. S. Ikegami, I. Ueda, and T. Nagata, 'Electro-mechanical properties of PbTiO$_3$ ceramics containing La and Mn', J. Acous. SocL. Am., Vol. 50, No. 4, p. 1060,1971 https://doi.org/10.1121/1.1912729
  4. J. H. Yoo, J. I. Hong, and S. J. Suh, 'Effect of MnO$_2$ impurity on the PbTiO$_3$ system ceramics for power supply', Sensors & Actuators, Vol. 78, No. 2, p. 168, 1999 https://doi.org/10.1016/S0924-4247(99)00229-0
  5. S. K Min, D. U. Oh, K. H. Yoon, J. H. Yoo, C. Y. Park, and J. S. Kim, 'Resonant characteristics as the variations of L/T ratio of Pb (La,Ce)Ti0$_3$ system ceramics', J. of KIEEME(in Korean), Vol. 14, No. 9, p.720, 2001
  6. Y. Yamashita, S. Sakano, and I. Toba, 'TE harmonic overtone mode energy-trapped ceramic filter with narrow frequency tolerance', Jpn. J. Appl. Phys., Vol. 36,p.6096, 1977 https://doi.org/10.1143/JJAP.36.6096