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Characterization and microwave dielectric properties of BiCa2VO6 ceramic

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Abstract

A novel low-firing microwave dielectric ceramic BiCa2VO6 was prepared using the solid-state reaction method. It could be well sintered at 900 °C with a relative density of 97.9 %. X-ray diffraction result showed that orthorhombic single phase with space group Cmc2 1 was obtained for all sintered BiCa2VO6 ceramics. The sample sintered at 900 °C for 4 h exhibited a relative permittivity (ε r ) of 11.9, a quality factor (Q × f) of 23,175 GHz, and a temperature coefficient of resonant frequency (τ f ) of −86.7 ppm/°C. The Q × f value was largely dependent on the packing fraction, as well as the relative density. Chemical compatibility experiment showed no reaction between BiCa2VO6 ceramics and Ag electrodes.

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Acknowledgments

This work was supported by Natural Science Foundation of China (No. 21261007, 21561008, and 51502047), the Natural Science Foundation of Guangxi Zhuang Autonomous Region (Grant No. 2012GXNSFDA053024), Project of Department of Science and Technology of Guangxi (No. 114122005-28), and Projects of Education Department of Guangxi Zhuang Autonomous Region (Nos. YB2014160 and ZD2014160).

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Correspondence to Chunchun Li or Liang Fang.

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Li, C., Xiang, H., Luo, H. et al. Characterization and microwave dielectric properties of BiCa2VO6 ceramic. J Mater Sci: Mater Electron 26, 9546–9551 (2015). https://doi.org/10.1007/s10854-015-3617-8

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  • DOI: https://doi.org/10.1007/s10854-015-3617-8

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