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Effect of the second phase on the microwave dielectric properties of strontium titanate

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Abstract

In this study, the effects of the second phase, either in the form of particulate or of lamella, on the microwave dielectric properties are investigated. Strontium titanate (SrTiO3) is considered to be a model system for this examination. Although SrTiO3 is an intermediate compound between SrO and TiO2, the solubilities of SrO and TiO2 in SrTiO3 are extremely low. Excess SrO and excess TiO2 lead to the formation of second phases as Sr3Ti2O7 and TiO2, respectively, within SrTiO3. TiO2 exists as particulates, and its presence marginally affects the microwave dielectric properties of SrTiO3. The Sr3Ti2O7 lamella is located on the long axis of the elongated SrTiO3 grain. With the formation of the Sr3Ti2O7 lamella, the permittivity decreases, and the product of quality factor and resonant frequency increases.

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References

  1. S.J. Penn, M.N.M. Alford, A. Templeton, X. Wang, M. Xu, M. Reece, K. Schrapel, Effect of porosity and grain size on the microwave dielectric properties of sintered alumina. J. Am. Ceram. Soc. 80, 1885–1888 (1997)

    Article  CAS  Google Scholar 

  2. F. Liu, X.-Y. Liu, C.-L. Yuan, T. Yang, G.H. Chen, C.-R. Zhou, Crystal structure and dielectric properties of (1 − x)SrTiO3-xCa0.4Sm0.4TiO3 ceramic system at microwave frequencies. Mater. Chem. Phys. 148, 1083–1088 (2014)

    Article  CAS  Google Scholar 

  3. F. Liu, C. Yuan, X. Liu, G. Chen, C. Zhou, J. Qu, Microstructures and dielectric properties of (1 − x)SrTiO3-xCa0.61Nd0.26TiO3 ceramic system at microwave frequencies. J. Mater. Sci. 26, 128–133 (2015)

    CAS  Google Scholar 

  4. A. Tkach, P.M. Vilarinho, A.M.R. Senos, A.L. Kholkin, Effect of nonstoichiometry on the microstructure and dielectric properties of strontium titanate ceramics. J. Eur. Ceram. Soc. 25, 2769–2772 (2005)

    Article  CAS  Google Scholar 

  5. L. Amaral, A.M. Senos, P.M. Vilarinho, Sintering kinetic studies in nonstoichiometric strontium titanate ceramics. Mater. Res. Bull. 44, 263–270 (2009)

    Article  CAS  Google Scholar 

  6. M. Bäurer, H. Kungl, M.J. Hoffmann, Influence of Sr/Ti stoichiometry on the densification behavior of strontium titanate. J. Am. Ceram. Soc. 92, 601–606 (2009)

    Article  Google Scholar 

  7. S. Sturm, A. Recnik, C. Scheu, M. Ceh, Formation of ruddlesden-popper faults and polytype phases in SrO-doped SrTiO3. J. Mater. Res. 15, 2131–2139 (2000)

    Article  CAS  Google Scholar 

  8. B.V. Beznosikov, K.S. Aleksandrov, Perovskite-Like crystals of the Ruddlesden-Popper series. Cryst. Rep. 45, 792–798 (2000)

    Article  Google Scholar 

  9. M.A. Mccoy, R.W. Grimes, W.E. Lee, Phase stability and interfacial structures in the SrO–SrTiO3 system. Philos. Mag. A 75, 833–846 (1997)

    Article  CAS  Google Scholar 

  10. R. Neville, B. Hoeneisen, C. Mead, Permittivity of strontium titanate. J. Appl. Phys. 43, 2124–2131 (1972)

    Article  CAS  Google Scholar 

  11. V. Randle, Electron backscatter diffraction: strategies for reliable data acquisition and processing. Mater. Charact. 60, 913–922 (2009)

    Article  CAS  Google Scholar 

  12. N. Shomrat, D. Haviv, Y. Tsur, The correlation between non-stoichiometry and charge compensation in perovskites. J. Electroceram. 33, 135–141 (2014)

    Article  CAS  Google Scholar 

  13. P.L. Wise, J.M. Reaney, W.E. Lee, J.J. Price, D.M. Iddles, D.S. Cannell, Structure-microwave property relations in (SrxCa(1-x))n+1TinO3n+1. J. Eur. Ceram. Soc. 21, 1723–1726 (2001)

    Article  CAS  Google Scholar 

  14. L. Amaral, M. Fernandes, I.M. Reaney, M.P. Harmer, A.M. Senos, P.M. Vilarinho, Grain growth anomaly and dielectric response in Ti-rich strontium titanate ceramics. J. Phys. Chem. C 117, 24787–24795 (2013)

    Article  CAS  Google Scholar 

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Acknowledgements

The present study was supported by the Ministry of Science and Technology, Taiwan, through Contract Number of MOST 105-2221-E-002-054-MY2.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan

    Yi-Ting Su, Pei-Yi Hsu & Wei-Hsing Tuan

  2. Prosperity Dielectric Co. Ltd., Taoyüan, 338, Taiwan

    Chung-Ya Tsao

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  1. Yi-Ting Su
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  2. Pei-Yi Hsu
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Correspondence to Wei-Hsing Tuan.

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Su, YT., Hsu, PY., Tuan, WH. et al. Effect of the second phase on the microwave dielectric properties of strontium titanate. J Mater Sci: Mater Electron 30, 17654–17660 (2019). https://doi.org/10.1007/s10854-019-02114-1

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