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J. Korean Ceram. Soc. > Volume 41(2); 2004 > Article
Journal of the Korean Ceramic Society 2004;41(2): 165.
doi: https://doi.org/10.4191/kcers.2004.41.2.165
Zn1-x(Li1/2La1/2)xTiOM3계 세라믹스의 저온 소결 및 마이크로파 유전특성
김응수, 한기문
경기대학교 재료공학과
Low Temperature Sintering and Microwave Dielectric Properties of Zn1-x(Li1/2La1/2)xTiO3 Ceramics
Microwave dielectric properties and the behavior of low-temperature sintering of $Zn_{1-x}(Li_{1/2}La_{1/2})_xTiO_3$ ($0.01{leq}x{leq}0.05$) with 4 wt% $H_3BO_3$ were investigated as a function of $(Li_{1/2}La_{1/2})^{2+}$ content. The sintering temperature of the specimens can be reduced from $1150^{circ}C$ to $875^{circ}C$ with the addition of 4 wt% $H_3BO_3$ as a sintering agent. Dielectric constant (K) and Temperature Coefficient of resonant Frequency (TCF) with the substitution of ($(Li_{1/2}La_{1/2})^{2+}$ ion depended on dielectric mixing rule. Quality factor (Qf) depended on density and microstructure. Typically, K of 26.5, Qf of 19,030 GHz and TCF of 7.5 ppm$/^{circ}C$ were obtained for the specimens with x=0.03 sintered at $875^{circ}C$ for 3 h.
Key words: $Zn_{1-x}(Li_{1/2}La_{1/2})_xTiO_3$, ${H_3}{BO_3}$, Low temperature sintering, Microwave dielectric property
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