Low-temperature firing and microwave dielectric properties of 16CaO–9Li2O–12Sm2O3–63TiO2 ceramics with V2O5 addition |
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Authors: | Yong-jun Gu Jin-liang Huang Qian Li Dao-ming Sun Hui Xu |
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Affiliation: | aInstitute of Materials Science, Shanghai University, Shanghai 200072, China;bSchool of Materials Science & Engineering, Henan University of Science & Technology, Luoyang 471003, China;cDepartment of Materials Science, Fudan University, Shanghai 200433, China |
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Abstract: | The sintering behaviors and microwave dielectric properties of the 16CaO–9Li2O–12Sm2O3–63TiO2 (abbreviated CLST) ceramics with different amounts of V2O5 addition had been investigated in this paper. The sintering temperature of the CLST ceramic had been efficiently decreased by nearly 100 °C. No secondary phase was observed in the CLST ceramics and complete solid solution of the complex perovskite phase was confirmed. The CLST ceramics with small amounts of V2O5 addition could be well sintered at 1200 °C for 3 h without much degradation in the microwave dielectric properties. Especially, the 0.75 wt.% V2O5-doped ceramics sintered at 1200 °C for 3 h have optimum microwave dielectric properties of Kr = 100.4, Q × f = 5600 GHz, and TCF = 7 ppm/°C. Obviously, V2O5 could be a suitable sintering aid that improves densification and microwave dielectric properties of the CLST ceramics. |
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Keywords: | Dielectric properties Perovskites Sintering V2O5 Functional applications |
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