Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지
DOI QR코드

DOI QR Code

Effects of Surface Microstructure on Microwave Dielectric Properties of ZrO2-NiO added Ba(Zn1/3Ta2/3)O3 Ceramics

ZrO2와 NiO가 첨가된 Ba(Zn1/3Ta2/3)O3에서 표면 미세조직이 고주파 유전특성에 미치는 영향

  • Kang, Sung-Woo (Center for Energy Materials Research, Korea Institute of Science and Technology) ;
  • Kim, Tae-Heui (The Center of Green Materials Technology, School of Advanced Materials Engineering, Andong National University) ;
  • Moon, Joo-Ho (School of Advanced Materials Science and Engineering, Yonsei University) ;
  • Kim, Sung-Youl (Expantech) ;
  • Park, Jun-Young (Center for Energy Materials Research, Korea Institute of Science and Technology) ;
  • Choi, Sun-Hee (Center for Energy Materials Research, Korea Institute of Science and Technology) ;
  • Kim, Joo-Sun (Center for Energy Materials Research, Korea Institute of Science and Technology)
  • 강성우 (한국과학기술연구원 에너지재료연구단) ;
  • 김태희 (안동대학교 신소재공학부 청정소재기술연구센터) ;
  • 문주호 (연세대학교 신소재공학부) ;
  • 김성열 (익스팬테크(주)) ;
  • 박준영 (한국과학기술연구원 에너지재료연구단) ;
  • 최선희 (한국과학기술연구원 에너지재료연구단) ;
  • 김주선 (한국과학기술연구원 에너지재료연구단)
  • Published : 2008.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

High frequency dielectric ceramics have potential for applications in mobile and satellite communications systems at frequencies higher than 10GHz. The Ba$(Zn_{1/3}Ta_{2/3})O_3$ ceramics are known to have a high quality factor, a small temperature coefficient of the resonance frequency and a high dielectric constant. On the other hands, sintering at high temperature for extended time is required to obtain the ordered structure for high quality factor. In this study, the microwave dielectric properties of $ZrO_2$ and NiO-added Ba$(Zn_{1/3}Ta_{2/3})O_3$ ceramics prepared by solid-state reaction have been investigated. Adding $ZrO_2$ and NiO could effectively promote the densification even the case of decreasing the sintering time. At the surface of samples, secondary phase of Ba-Ta compounds was formed possibly due to the evaporation of ZnO, however, the interior of the samples remained as pure Ba$(Zn_{1/3}Ta_{2/3})O_3$. The samples sintered at $1600^{\circ}C$ for 2h exhibited 1:2 ordering of Zn and Ta cations. Excellent microwave dielectric properties of $Q{\cdot}f$(>96,000 GHz) and ${\varepsilon}_r$=30 has been obtained.

Keywords

References

  1. H. Tamura, D. A. Sagala, and K. Wakino, "Lattice Vibrations of $Ba(Zn_{1/3}Ta_{2/3})O_3$ Crystal with Ordered Perovskite Structure," Jpn. J. Appl. Phys., 25 [6] 787-91 (1986) https://doi.org/10.1143/JJAP.25.787
  2. W. Wersing, "Microwave Ceramics for Resonators and Filters," Curr. Opin. Solid State Mater. Sci., 1 [5] 715-31 (1996) https://doi.org/10.1016/S1359-0286(96)80056-8
  3. R. J. Cava, "Dielectric Materials for Applications in Microwave Communications," J. Mater. Chem., 11 54-62 (2001) https://doi.org/10.1039/b003681l
  4. N. Klein, M. Schuster, S. Vitusevich, M. Winter, and H.R. Yi, "Novel Dielectric Resonator Structures for Future Microwave Communication Systems," J. Eur. Ceram. Soc., 21 [15] 2687-91 (2001) https://doi.org/10.1016/S0955-2219(01)00346-6
  5. A. A. Bokov and Z.-G. Ye, "Recent Progress in Relaxor Ferroelectrics with Perovskite Structure," J. Mater. Sci., 41 [1] 31-52 (2006) https://doi.org/10.1007/s10853-005-5915-7
  6. S. Janaswamy, G. S. Murthy, E. D. Dias, and V. R. K. Murthy, "Structure Analysis on the $Ba_3Mg(Ta_{1x}Nbx)_2O_9$ Ceramics: Coexistence of Order and Disorder," Mater. Res. Bull., 43 [3, 4] 655-64 (2008) https://doi.org/10.1016/j.materresbull.2007.04.009
  7. K. H. Yoon, S. J. Yoo, W. S. Kim, J. B. Kim, and E. S. Kim, "Effect of $BaO/WO_3$ on the Microwave Loss Quality of $Ba(Mg_{1/3}Ta_{2/3})O_3$," Jpn. J. Appl. Phys., 38 [9B] 5616-20 (1999) https://doi.org/10.1143/JJAP.38.5616
  8. T. Takahashi, "First-principles Investigation of the Phase Stability for $Ba(B_{1/3}\;^{,2+}B_{2/3}\;^{,,5+})O_3$ Microwave Dielectrics with the Complex Perovskite Structure," Jpn. J. Appl. Phys., 39 [9B] 5637-41 (2000) https://doi.org/10.1143/JJAP.39.5637
  9. A. Ioachim, M. I. Toacsan, M. G. Banciu, L. Nedelcu, C. A. Dutu, M. Feder, C. Plapcianu, F. Lifei, and P. Nita, "Effect of the Sintering Temperature on the $Ba(Zn_{1/3}Ta_{2/3})O_3$ Dielectric Properties," J. Eur. Ceram. Soc., 27 [2-3] 1117-22 (2007) https://doi.org/10.1016/j.jeurceramsoc.2006.05.023
  10. C. J. Lee, G. Pezzotti, Shin H. Kang, Deug J. Kim, and Kug Sun Hong, "Quantitative Analysis of Lattice Distortion in $Ba(Zn_{1/3}Ta_{2/3})O_3$ Microwave Dielectric Ceramics with Added $B_2O_3$ Using Raman Spectroscopy," J. Eur. Ceram. Soc., 26 [8] 1385-91 (2006) https://doi.org/10.1016/j.jeurceramsoc.2005.02.014
  11. S. Nomura, K. Yoyama, and K. Kaneta, "$Ba(Mg_{1/3}Ta_{2/3})O_3$ Ceramics with Temperature Stable High Dielectric Constant and Low Microwave Loss," Jpn. J. Appl. Phys., 21 [10] L624-26 (1982) https://doi.org/10.1143/JJAP.21.624
  12. S. B. Desu, and H. M. O'Bryan, "Microwave Loss Quality of $Ba(Zn_{1/3}Ta_{2/3})O_3$ Ceramics," J. Am. Ceram. Soc., 68 [10] 546-51 (1985) https://doi.org/10.1111/j.1151-2916.1985.tb11521.x
  13. E. Koga, Y. Yamagishi, H. Moriwake, K. Kakimoto, and H. Ohsato, "Large Q Factor Variation within Dense, Highly Ordered $Ba(Zn_{1/3}Ta_{2/3})O_3$ System," J. Eur. Ceram. Soc., 26 [10-11] 1961-4 (2006) https://doi.org/10.1016/j.jeurceramsoc.2005.09.041
  14. H. Tamura, T. Konoike, Y. Sakabe, and K. Wakino, "Improved High-Q Dielectric Resonator with Complex Perovskite Structure," J. Am. Ceram. Soc., 67 [4] C59-61 (1984) https://doi.org/10.1111/j.1151-2916.1984.tb18828.x
  15. S. Kawashima, M. Nishida, I. Ueda, and H. Ouchi, "$Ba(Zn_{1/3} Ta_{2/3})O_3$ Ceramics with Low Dielectric Loss at Microwave Frequencies," J. Am. Ceram. Soc., 66 [6] 421-23 (1983) https://doi.org/10.1111/j.1151-2916.1983.tb10074.x
  16. B. W. Hakki and P. D. Coleman, "A Dielectric Method of Measuring Inductive Capacities in the Millimeter Range," IEEE Trans. Microwave Theory Tech., MTT-8 402-40 (1980)
  17. Peter K. Davies and Jianzhu Tong, "Effect of Ordering- Induced Domain Boundaries on Low-Loss $Ba(Zn_{1/3}Ta_{2/3})O_3-BaZrO_3$ Perovskite Microwave Dielectrics," J. Am. Ceram. Soc., 80 [7] 1727-40 (1997) https://doi.org/10.1111/j.1151-2916.1997.tb03046.x
  18. S. Kamba, J. Petzelt, E. Buixaderas, D. Haubrich, and P. Vanek, "High Frequency Dielectric Properties of $A_5B_4O_{15}$ Microwave Ceramics," J. Appl. Phys., 89 [7] 3900-6 (2001) https://doi.org/10.1063/1.1351873

Cited by

  1. Microwave Dielectrics vol.24, pp.12, 2011, https://doi.org/10.4313/JKEM.2011.24.12.955