Improvement of Sintering and Microwave Dielectric Characteristics of Ba(Mg1/3Ta2/3)O3 Ceramics by Addition of BaTi4O9

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概要

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• BaTi4O9 (BT4) calcined at 1150°C and Ba(Mg1/3Ta2/3)O3 (BMT) calcined at 1200°C are mixed, the sintering and the microwave dielectric characteristics of 0.18 mol BT4 and 0.82 mol BMT ceramics are determined (BT4-BMT). The required sintering temperature of BT4-BMT ceramics is decreased to approximately 1320°C. As the sintering temperatures increase from 1240 to 1360°C, the microwave dielectric properties of BT4-BMT ceramics change as follows: The $\varepsilon_{\text{r}}$ values increase from 23.5 to 28.0, the $Q$*$f$ values increase from 25200 to 64700 and the $\tau_{\text{f}}$ values linearly change from 2.0 ppm/°C to 4.3 ppm/°C. The $\varepsilon_{\text{r}}$ values, the $Q$*$f$ values and the $\tau_{\text{f}}$ values are saturated in 1320°C-sintered ceramics.

• Japan Society of Applied Physicsの論文
• 2004-03-15

著者

• CHENG Ping-Shou

  Department of Electrical Engineering, National Sun Yat-Sen University

• Cheng Ping-shou

  Department Of Electronic Engineering National Kaohsiung University Of Applied Sciences

関連論文

• The Effect of the Crystalline Phase on the Sintering and Microwave Dielectric Properties of CuO-doped (Bi_Sm_)NbO_4 Ceramics
• Improvement of Sintering and Microwave Dielectric Characteristics of Ba(Mg1/3Ta2/3)O3 Ceramics by Addition of BaTi4O9

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