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Preparation, structure and microwave dielectric properties of 3MgO–Al2O3–3TiO2 ceramics

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Abstract

3MgO–Al2O3–3TiO2 (MAT) ceramics were prepared by a conventional solid-state reaction method. The crystal structure, sintering behavior and microwave dielectric properties of ceramics were investigated using X-ray diffraction, scanning electron microscopy and network analyzer. MAT ceramics contained the coexistence of three phases, including MgAl2O4, MgTiO3 and MgTi2O5. The ceramics sintered at 1350 °C for 4 h presented excellent comprehensive performances with relative permittivity (ε r ) of 15.4, quality factor (Q × f) of 91,000 GHz and temperature coefficient of resonant frequency (τ f ) about −55.1 ppm/°C.

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Acknowledgements

This work was supported by Natural Science Foundation of China (Nos.1146009, 11664008 and 11364012), Natural Science Foundation of Guangxi (Nos.2015GXNSFDA139033, 2014GXNSFAA118312, 2013GXNSFAA019291 and 2014GXNSFAA118326), and Project of Outstanding Young Teachers’ Training in Higher Education Institutions of Guangxi.

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Authors and Affiliations

  1. Collaborative Innovation Center for Exploration of Hidden Non-ferrous Metal Deposits and Development of New Materials in Guangxi, Guangxi Ministry-Province Jointly-Constructed Cultivation Base for State Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi Key Laboratory in Universities of Clean Metallurgy and Comprehensive Utilization for Non-ferrous Metals Resources, School of Materials Science and Engineering, Guilin University of Technology, Guilin, 541004, China

    Jin Huang, Huanfu Zhou, Nan Wang, Xianghu Tan & Guangchao Fan

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  1. Jin Huang
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  2. Huanfu Zhou
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Correspondence to Huanfu Zhou.

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Huang, J., Zhou, H., Wang, N. et al. Preparation, structure and microwave dielectric properties of 3MgO–Al2O3–3TiO2 ceramics. J Mater Sci: Mater Electron 28, 4565–4569 (2017). https://doi.org/10.1007/s10854-016-6092-y

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