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Effects of (Na1/2Nd1/2)TiO3 on the microstructure and microwave dielectric properties of PTFE/ceramic composites

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Abstract

A study on polytetrafluoroethylene (PTFE) composites with Na1/2Nd1/2TiO3 (NNT) ceramic and E glass shorten fiber (E-GF) was described. The E-GF content was fixed at 5 wt.%, and the NNT content varied from 12.1 vol.% to 42.8 vol.%. This paper systematically introduced the preparation process of composites and the effects of NNT filling content on the properties of composites. The surface modification of ceramic powders was observed by Fourier Transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS), which proved that NNT surfaces have been modified by Perfluorooctyltriethoxysilane (F8261) successfully. When the NNT filling content was 42.8 vol.%, substrate material with a low water absorption of 0.12%, high dielectric constant of 9.45, low dielectric loss of 0.0024, and τε of -222 ppm/°C were achieved, which is of great reference significance for the miniaturization and integration of microwave devices.

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Acknowledgements

This work has been supported by the Science and Technology Planning Project of Guangdong Province of China (No. 2017A010103001).

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Authors and Affiliations

  1. National Engineering Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, Jianshe Road, Chengdu, 610054, People’s Republic of China

    Minghao Yao, Ying Yuan, Enzhu Li, Bin Tang & Shuren Zhang

  2. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Jianshe Road, Chengdu, 610054, People’s Republic of China

    Minghao Yao, Ying Yuan, Enzhu Li, Bin Tang & Shuren Zhang

  3. Institute of Electronic and Information Engineering of UESTC in Guangdong, Dongguan, 523808, People’s Republic of China

    Ying Yuan

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  1. Minghao Yao
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  2. Ying Yuan
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Correspondence to Ying Yuan.

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Yao, M., Yuan, Y., Li, E. et al. Effects of (Na1/2Nd1/2)TiO3 on the microstructure and microwave dielectric properties of PTFE/ceramic composites. J Mater Sci: Mater Electron 29, 20680–20687 (2018). https://doi.org/10.1007/s10854-018-0206-7

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  • DOI: https://doi.org/10.1007/s10854-018-0206-7

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