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http://dx.doi.org/10.4191/KCERS.2004.41.2.165

Low Temperature Sintering and Microwave Dielectric Properties of Zn1-x(Li1/2La1/2)xTiO3 Ceramics  

김응수 (경기대학교 재료공학과)
한기문 (경기대학교 재료공학과)
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Abstract
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.
Keywords
$Zn_{1-x}(Li_{1/2}La_{1/2})_xTiO_3$; ${H_3}{BO_3}$; Low temperature sintering; Microwave dielectric property;
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