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Microwave dielectric properties and low temperature firing of (1 − x)Li2Zn3Ti4O12 –xLi2TiO3 (0.2 ≤ x ≤ 0.8) ceramics with B2O3–CuO addition

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Abstract

In the present work, the (1 − x)Li2Zn3Ti4O12–xLi2TiO3 (0.2 ≤ x ≤0.8) ceramics were prepared via the solid state reaction method. The 0.8Li2Zn3Ti4O12–0.2Li2TiO3 ceramic sample sintered at 1,160 °C for 2 h demonstrated high microwave dielectric property with a relative permittivity of 18.0, a high quality factor (Q × f) ~ 100,000 GHz (at 7.2 GHz), and a temperature coefficient of resonant frequency about −47.8 ppm/°C. With 2.0 wt% 0.4B2O3–0.6CuO addition, a relative permittivity of 17.5, a Q × f value of 71,000 GHz and a temperature coefficient of resonant frequency of −44.4 ppm/oC can be obtained in 0.8Li2Zn3Ti4O12–0.2Li2TiO3 ceramic sintered at 925 °C for 5 h and the chemical compatibility with silver electrode indicates that the ceramics may be a suitable candidate for the low temperature co-fired ceramic technology application.

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Acknowledgments

This work was supported by the National Science Foundation of China (51202182, 51202178), the Fundamental Research Funds for the Central University, the headmaster foundation of Xi’an Technological University (XAGDXJJ1001) and the Foundation of Shaanxi Educational Committee (12JK0432).

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Authors and Affiliations

  1. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Xi’an Jiaotong University, Xi’an, 710049, Shaanxi, China

    Ying Wu, Di Zhou & Jing Guo

  2. Micro-optoelectronic Systems Laboratories, Xi’an Technological University, Xi’an, 710032, Shaanxi, China

    Li-Xia Pang

Authors
  1. Ying Wu
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  2. Di Zhou
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  3. Jing Guo
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  4. Li-Xia Pang
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Correspondence to Di Zhou.

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Wu, Y., Zhou, D., Guo, J. et al. Microwave dielectric properties and low temperature firing of (1 − x)Li2Zn3Ti4O12 –xLi2TiO3 (0.2 ≤ x ≤ 0.8) ceramics with B2O3–CuO addition. J Mater Sci: Mater Electron 24, 1505–1510 (2013). https://doi.org/10.1007/s10854-012-0962-8

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  • DOI: https://doi.org/10.1007/s10854-012-0962-8

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