We have fabricated various amount of Li 2 CO 3 doped (Ba,Sr)TiO 3 (BST) ceramics for LTCCs (Low Temperature Co-fired Ceramics) applications through the conventional sintering method. By introducing Li 2 CO 3 into BST ceramics, the sintering temperature was decreased from 1350°C to 900°C. In this study, we discussed the crystalline and structural properties of Li 2 CO 3 doped BST ceramics. By scanning X-ray diffraction analysis, we found that 1, 3, and 5 wt% Li 2 CO 3 doped (Ba,Sr)TiO 3 ceramics have perovskite structure without any pyrochlore phases. Frequency dependent dielectric properties were analyzed and discussed. Scanning Electron Microscopy (SEM) images depending on the sintering temperature and dopants were prepared and discussed. The crystalline and dielectric properties of Li 2 CO 3 doped (Ba,Sr)TiO 3 were discussed.
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