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Microwave dielectric properties of low-temperature sintered (1 − x)CaMoO4−x(Li0.5Y0.5)MoO4 (0.1 ≤ x ≤ 0.8) ceramics

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Abstract

In this work, (1 − x)CaMoO4−x(Li0.5Y0.5)MoO4 ((1 − x)CM–xLYM, 0.1 ≤ x ≤ 0.8) ceramic specimens were successfully fabricated by the conventional solid-state reaction method at low temperatures (≤ 950 °C). The effects of sintering temperature and compositional variation on the microwave dielectric properties (MDPs) were investigated. The optimal MDPs of εr = 11.1, Q ×f = 30,568 GHz and τf =− 0.04 ppm/°C were achieved in the specimen with x = 0.15 at the sintering temperature of 800 °C. The mechanisms of the changes of the MDPs with respect to the compositional variation were studied by analyses of polarizability, packing fraction, bond valence, and Raman spectroscopy. Additionally, the present ceramic specimens showed outstanding compatibility with Ag electrodes, indicating that the (1 − x)CM–xLYM ceramics have great potential to be applied as low-temperature co-fired ceramic (LTCC) materials.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Nos. 11774083 and 51902093).

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Authors and Affiliations

  1. Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science and Engineering, Hubei University, Wuhan, 430062, China

    Ying Liu, Lin Gan, Juan Jiang, Jinzhao Wang & Tianjin Zhang

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  1. Ying Liu
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  2. Lin Gan
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Liu, Y., Gan, L., Jiang, J. et al. Microwave dielectric properties of low-temperature sintered (1 − x)CaMoO4−x(Li0.5Y0.5)MoO4 (0.1 ≤ x ≤ 0.8) ceramics. J Mater Sci: Mater Electron 33, 3566–3575 (2022). https://doi.org/10.1007/s10854-021-07550-6

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