Low-Temperature Sintering and Microwave Dielectric Properties of the Zn2SiO4 Ceramics |
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| Authors: | Jin-Seong Kim Ngoc-Huan Nguyen Jong-Bong Lim Dong-Soo Paik Sahn Nahm Jong-Hoo Paik Jong-Hee Kim Hwack-Joo Lee |
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| Affiliation: | Department of Materials Science and Engineering, Korea University, Seoul 136-701, Korea;
Korea Institute of Ceramic Engineering and Technology, Seoul 153-801, Korea;
New Materials Evaluation Center, Korea Research Institute of Standards and Science, Daejeon 305-600, Korea |
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| Abstract: | B2O3 was added to nominal composition Zn1.8SiO3.8 (ZS) ceramics to decrease their sintering temperature for application to low-temperature cofired ceramic (LTCC) devices. B2O3 reacted with SiO2 to form a liquid phase containing SiO2 and B2O3. The composition and melting temperature of the liquid phase depended on the sintering temperature and the B2O3 content. The specimen containing 20.0 mol% of B2O3 sintered at 900°C exhibited high microwave dielectric properties of Q × f =53 000 GHz, ? r=5.7, and τf=?16 ppm/°C, confirming the promising potential of the B2O3-added ZS ceramics as candidate materials for the LTCC devices. |
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