Low temperature sintering and microwave dielectric properties of Ba4Sm9.33Ti18O54 ceramics |
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| Authors: | N. Santha M.T. Sebastian |
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| Affiliation: | 1. Laboratory of Glass-Ceramic Materials (VITROCER), Federal University of Santa Catarina (UFSC), PO Box 476, 88040-900 Florianópolis, SC, Brazil;2. Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), PO Box 476, 88040-900 Florianópolis, SC, Brazil;1. School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310012, China;2. College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, China;1. Laboratory of Condensed Matter and Nanosciences, Department of Physics, Faculty of Sciences of Monastir, Monastir 5019, Tunisia;2. Laboratory of Physics of Materials and Nanomaterials Applied to the Environment, Faculty of Sciences of Gabes, University of Gabes, City Erriadh 6079, Gabes, Tunisia;3. Laboratory of Materials Science and Engineering, Faculty of Mechanical Engineering and Process Engineering, University of Science and Technology Houari Boumediene, BP32 El Alia, Bab Ezzouar 16111, Algiers, Algeria |
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| Abstract: | ![]()
The effect of BaCu(B2O5) (BCB) on the sinterability, microstructure and microwave dielectric properties of Ba4Sm9.33Ti18O54 (BST) has been investigated. Dilatometric measurements reveal that the sintering temperature of BST can be reduced by the addition of BCB. Microstructural analysis shows abnormal grain growth with large amount of BCB. A ceramic composite with Q × f = 4000 GHz, ?r = 52 and τf = ?29 ppm/°C which can be sintered at 950 °C is obtained when 10 wt% BCB is added to BST. EDS analysis shows that the composite is chemically compatible with silver. |
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