Browse > Article

The Structural and Microwave Dielectric Properties of the BMT Ceramics with Sintering Temperature and BCN Composition Ratio  

Choe, Ui-Seon (광원대학 전자재료공학과)
Lee, Mun-Gi (광원대학 전자재료공학과)
Ryu, Gi-Won (여주대학 전자과.)
Lee, Seong-Gap (서남대학 전자전기공학부.)
Lee, Yeong-Hui (광운대학 전자재료공학과.)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers C / v.51, no.7, 2002 , pp. 305-310 More about this Journal
Abstract
The microwave dielectric properties of Ba(Mg$_{1}$3/Ta$_{2}$3/O$_3$-Ba(Co$_{1}$3/Nb$_{2}$3/O$_3$[BMT-BCN] ceramics were investigated. The specimens were prepared by the conventional mixed oxide method with the sintering temperature of 15$25^{\circ}C$~1575$^{\circ}C$. It was found that Ba(Mg$_{1}$3/Ta$_{2}$3/O$_3$[BMT] and BCN formed a solid solution with complex perovskite structure. As increasing the mole fraction of BCN, dielectric constant increased while the temperature coefficient of resonant frequency was changed from positive to negative value. The highest value of quality factor, Q$\times$f$_{0}$=138,205GHz, obtained in the 0.9BMT-0.1BCN ceramics sintered at 1575$^{\circ}C$. In the range of x$\geq$0.4, the dielectric constant was about 30. The 0.55BMT-0.45BCN ceramics sintered at 15$25^{\circ}C$ for 5 hours showed the microwave dielectric properties of $\varepsilon$$_{r}$=30.21, Q$\times$f$_{0}$=85,789GHz and $\tau$$_{f}$=2.9015ppm/$^{\circ}C$.EX>.
Keywords
Quality factor(Q${\times}$f$_{}$ 0/); Dielectric constant($\varepsilon$$_{}$ r/); Complex perovskite structure; Temperature coefficient of resonant frequency($\tau$$_{}$ f/);
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 N. Negas, G. Yeager, S. Bell, and R. Amren, 'Chemistry and properties of temperature compensated microwave dielectrics'. NIST spec. publ. 804. in Chemistry of Electronic Ceramic Materials, pp.21, 1991
2 S. Nishigaki, S. Yono and H. Kato, 'BaO-$TiO_2-WO_3$ Microwave Ceramics and Crystalline $BaWO_4$', J. Am. Ceram. Soc., 71(1), C-11-17, 1988
3 R. Christoffersen, P. K. Davies and X. Wei, 'Effect og Sn Substitution on Cation Ordering in $(Zr_{1-x}Sn_x)TiO_4$ Microwave Dielectric Ceramics', J. Am. Ceram. Soc., 77(6), pp.1441-1450, 1994   DOI   ScienceOn
4 이영희 등, '$0.15(Ba_{0.95}Sr_{0.05}O-0.15Sm_2O_3-0.7TiO_2$ 세라믹스의 마이크로파 유전특성', 한국전기전자재료학회지, Vol.8, No.2, pp. 224-228, 1995   과학기술학회마을
5 S. B. Desu and H. M. O'bryan, 'Microwave Loss Quality of $BaZn_{\frac{1}{3}}Ta_{\frac{2}{3}}O_3$ Ceramics', J. Am. Ceram. Soc., 68(10), pp.546-551, 1985   DOI   ScienceOn
6 N.Ida, 'Microwave NDT', Kluwer Academic Publisher, 1990
7 이영희 등, '소결온도에 따른 $0.9MgTiO_3-0.1SrTiO_3$ 세라믹스의 구조 및 마이크로파 유전특성', 대한전기학회논문지, Vol.49, No.5, pp.294-298, 2000   과학기술학회마을
8 이영희 등, '소결온도와 Sr몰비에 따른 $Mg_{1-x}Sr_xTiO_3$ 세라믹스의 구조 및 마이크로파 유전특성', 대한전기학회논문지, Vol. 50, No.5, pp. 226-231, 2001   과학기술학회마을
9 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] pp.1727-1740, 1997   DOI   ScienceOn
10 J. M. Wu, 'Reaction Sequence and Effect of Calcination and Sintering on Microwave Properties of $(Ba,Sr)O-Sm_2O_3-TiO_2$ Ceramics', J. Am. Ceram. Soc., Vol.73, No.6, pp.1599-1605, 1990   DOI
11 S. Nomura, K. Toyama, and K. Kaneta, 'Ba$(Mg_{\frac{1}{3}}Ta_{\frac{2}{3}})O_3$ Ceramics with Temperature -Stable Loss', Jpn. J. Appl. Phys, 21(10), L624-L626, 1982   DOI
12 M. Onoda, 'Ba$(Zn_{\frac{1}{3}}Nb_{\frac{2}{3}})O_3$-Sr$(Zn_{\frac{1}{3}}Nb_{\frac{2}{3}})O_3$ Solid Solution Ceramics with Temperature-Stable, High Dielectric Constant and Low Microwave Loss', Jpn. J. Appl., Vol.21, No.12, 1982
13 B. W. Hakki et al., 'A Dielectric Resonator Method of Measuring Inductive Capacities in the Millimeter Range', IRE Trans. on Microwave Theory and Technique, Vol. MTT-24, No. 10, 1960
14 Y. Kobayashi et al., 'Microwave Measurement of Dielectric Properties of Low-Loss Materials by the Dielectric Rod Resonator Method', IEEE Trans. on Microwave Theory and Techniques, Vol. MTT-33, No.7, 1985   DOI
15 K. Wakino, 'Relations between Microwave Dielectric Losses and Microstructure on $(Zn,Sn)TiO_3$ Dielectric Ceramics', 日本窯業協會誌, 88(8), pp.475-482, 1980
16 安井 至 外, 'セラミツクス キャラクタりゼショソ技術, 窯業協會, pp. 7-8, 1987
17 S. Kawashima et al., '$Ba(Zn_{1/3}Ta_{2/3})O_3$ Ceramics with Low Dielectric Loss at Microwave Frequencies', J. Am. Ceram. Soc., Vol.66, No.6, pp.421 -423, 1983   DOI   ScienceOn