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Influence of TiO2 addition on the sintering, dielectric, and mechanical properties of Li2(Mg0.96Ni0.04)SiO4 ceramic

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Abstract

The influence of TiO2 addition on LMNS ceramic sintering, dielectric and mechanical properties was studied. The characterisation method includes X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, network analyser, mechanical analyser, simultaneous thermal analyser and dynamic mechanical analyser. A two-phase composite (TiO2 and Li2(Mg0.96Ni0.04)SiO4) was obtained as shown in XRD patterns. With the increasing amount of TiO2, the grain size and crystallite size decreased. The starting point of shrinkage moves to a higher temperature, the activation energy increased, and the elasticity and stiffness were enhanced. With a densified microstructure, a near-zero τf (+ 1.03 ppm/°C) has obtained as x = 0.04, and other dielectric properties are that εr = 6.29, Q × f = 57,000 GHz, and relative density = 96.33% sintered at 1100 °C.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant No. 61771104 and 62071106), Jiangxi Innovative Talent Program, Sichuan Science and Technology Program (Grant No. 2021JDTD0026), and Jiangxi Guochuang & UESTC Joint R & D Center Program (Grant No. H04W190371).

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Authors and Affiliations

  1. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, China

    Rui Peng, Yongcheng Lu, Yuanxun Li, Hua Su & Huaiwu Zhang

  2. Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, 313001, China

    Yuanxun Li

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  1. Rui Peng
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  2. Yongcheng Lu
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  3. Yuanxun Li
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  4. Hua Su
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Correspondence to Yuanxun Li or Hua Su.

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Peng, R., Lu, Y., Li, Y. et al. Influence of TiO2 addition on the sintering, dielectric, and mechanical properties of Li2(Mg0.96Ni0.04)SiO4 ceramic. J Mater Sci: Mater Electron 32, 20651–20658 (2021). https://doi.org/10.1007/s10854-021-06574-2

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  • DOI: https://doi.org/10.1007/s10854-021-06574-2

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