Skip to main content
SpringerLink
Log in

Influence of CeO2 on microstructure and microwave dielectric properties of Na1/2Sm1/2TiO3 ceramics

  • Published:
Journal of Materials Science: Materials in Electronics Aims and scope Submit manuscript

Abstract

Crystal structures and microwave dielectric properties of wt% CeO2-added Na1/2Sm1/2TiO3 (NST) ceramics were investigated systematically (x = 0.0, 0.3, 0.6, 0.9 and 1.2). Samples with CeO2 content ≤1.2 wt% were crystallized as single phase of orthorhombic perovskite structures. When Ce4+ initially entered into the A-site of perovskite structure, uniform grain growth was observed and the dielectric constant increased, but then as Ce4+ began to enter into the B-site of the perovskite structure, abnormal grains appeared and the ε r value reduced. The Q × f value was firstly enhanced to its maxim value of 9640 GHz due to the improvement of density and elimination of pores as Ce4+ content was in the range of 0.0–0.6 wt%, then sharply decreased. The temperature coefficient of resonant frequency (τ f ) slightly decreased from 199.7 to 185.1 ppm/°C. Typically, specimens sintered in air at 1425 °C for 2 h exhibited excellent microwave dielectric properties of ε r = 103.01, Q × f = 9640 GHz and τ f  = 192.8 ppm/°C. The relationships between microwave properties and crystal structures were also discussed in this paper.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

  1. B. Tang, Z.-X. Fang, H. Li, L. Liu, S.-R. Zhang, Microwave dielectric properties of H3BO3-doped Ca0.61La0.39Al0.39Ti0.61O3 ceramics. J. Mater. Sci. Mater. Electron. 26, 300–306 (2015)

    Article  Google Scholar 

  2. M.T. Sebastian, Dielectric Materials for Wireless Communication (Elsevier, Amsterdam, 2010)

    Google Scholar 

  3. Z. Dong-xiang, H. Ming-zhe, J. Sheng-lin, H. Jing, Microwave properties of CeO2-modified (PbCa)(FeNb)O3 dielectric ceramics. Mater. Lett. 58, 2684–2687 (2004)

    Article  Google Scholar 

  4. F. Azough, C. Leach, R. Freer, Effect of CeO2 on the sintering behaviour, cation order and properties of Ba3Co0.7Zn0.3Nb2O9 ceramics. J. Eur. Ceram. Soc. 26, 1883–1887 (2006)

    Article  Google Scholar 

  5. D. Pamu, G.L.N. Rao, K.V. Saravanan, K.C.J. Raju, Effect of CeO2 and Nd2O3 on the microstructure and microwave dielectric properties of (Zr0 .8, Sn0 .2)TiO4 ceramics. Integr. Ferroelectr. 117, 118–128 (2010)

    Article  Google Scholar 

  6. H. Sun, T. Pai, Y.-J. Nakamura, Y. Shan, Inaguma and M. Itoh, High temperature quantum paraelectricity in perovskite-type titanates Ln1/2 Na1/2 TiO3 (Ln = La, Pr, Nd, Sm, Eu, Gd and Tb). Ferroelectrics 200, 93–107 (1997)

    Article  Google Scholar 

  7. S.K. Barik, R.N.P. Choudhary, P.K. Mahapatra, Impedance spectroscopy study of Na1/2Sm1/2TiO3 ceramic. Appl. Phys. A 88, 217–222 (2007)

    Article  Google Scholar 

  8. R.T. Shannon, C.T. Prewitt, Effective ionic radii in oxides and fluorides. Acta. Crystallogr. Sect. B 25, 925–946 (1969)

    Article  Google Scholar 

  9. S. Ye, C.-H. Wang, X.-P. Jing, Photoluminescence and Raman spectra of double-perovskite Sr2Ca (Mo/W) O6 with A-and B-site substitutions of Eu3+. J. Electrochem. Soc. 155, J148–J151 (2008)

    Article  Google Scholar 

  10. D. Scarano, A. Zecchina, S. Bordiga, F. Geobaldo, G. Spoto, G. Petrini, G. Leofanti, M. Padovan, G. Tozzola, Fourier-transform infrared and Raman spectra of pure and Al-, B-, Ti- and Fe-substituted silicalites: stretching-mode region. J. Chem. Soc. Faraday Trans. 89, 4123–4130 (1993)

    Article  Google Scholar 

  11. H. Sreemoolanadhan, R. Ratheesh, M. Sebastian, N. Rodrigues, J. Philip, The synthesis, characterization and properties of Hf-substituted (dielectric ceramics. J. Phys. D Appl. Phys. 30, 1809 (1997)

    Article  Google Scholar 

  12. X. Sha, Z. Lü, X. Huang, J. Miao, Z. Liu, X. Xin, Y. Zhang, W. Su, Influence of the sintering temperature on electrical property of the Ce0.8Sm0.1Y0.1O1.9 electrolyte. J. Alloys Compd. 433, 274–278 (2007)

    Article  Google Scholar 

  13. H. Chen, B. Tang, A. Gao, S. Duan, H. Yang, Y. Li, H. Li, S. Zhang, Aluminum substitution for titanium in Ba3.75Nd9.5Ti18O54 microwave dielectric ceramics. J. Mater. Sci. Mater. Electron. 26, 405–410 (2015)

    Article  Google Scholar 

  14. S.H. Yoon, D.-W. Kim, S.-Y. Cho, K.S. Hong, Investigation of the relations between structure and microwave dielectric properties of divalent metal tungstate compounds. J. Eur. Ceram. Soc. 26, 2051–2054 (2006)

    Article  Google Scholar 

  15. N.I. Santha, M.T. Sebastian, P. Mohanan, N.M. Alford, K. Sarma, R.C. Pullar, S. Kamba, A. Pashkin, P. Samukhina, J. Petzelt, Effect of doping on the dielectric properties of cerium oxide in the microwave and far-infrared frequency range. J. Am. Ceram. Soc. 87, 1233–1237 (2004)

    Article  Google Scholar 

  16. L. Fang, Y. Tang, D. Chu, H. Zhou, H. Zhang, X. Chen, Q. Liu, Effect of B2O3 addition on the microstructure and microwave dielectric properties of Li2CoTi3O8 ceramics. J. Mater. Sci. Mater. Electron. 23, 478–483 (2012)

    Article  Google Scholar 

  17. R.T. Shannon, Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta. Crystallogr. Sect. A 32, 751–767 (1976)

    Article  Google Scholar 

  18. S. Yu, S. Zhang, B. Tang, X. Zhou, Y. Fang, Microwave dielectric properties of BaO–2(1 − x)ZnO–xNd2O3–4TiO2 (x–1.0) ceramics. Ceram. Int. 38, 613–618 (2012)

    Article  Google Scholar 

  19. C.-F. Tseng, T.-C. Wei, S.-C. Lu, Influence of A-site Ba substitution on microwave dielectric properties of (BaxMg1−x)(A0.05Ti0.95)O3 (A=Zr, Sn) ceramics. Ceram. Int. 40, 7081–7085 (2014)

    Article  Google Scholar 

  20. Y. Li, H. Li, J. Li, B. Tang, S. Zhang, H. Chen, Y. Wei, Effect of TiO2 ratio on the phase and microwave dielectric properties of Li2ZnTi3+x O8+2x ceramics. J. Electron. Mater. 43, 1107–1111 (2014)

    Article  Google Scholar 

  21. G.-H. Chen, C.-L. Yuan, C.-R. Zhou, Y. Yang, Low-firing high permittivity Ca0.6Sm0.8/3TiO3–(Li0.5Nd0.5)TiO3 ceramics with BaCu(B2O5) addition. Ceram. Int. 39, 9763–9766 (2013)

    Article  Google Scholar 

  22. H.S. Park, K.H. Yoon, E.S. Kim, Relationship between the bond valence and the temperature coefficient of the resonant frequency in the complex perovskite (Pb1−xCax)[Fe0.5(Nb1−yTay)0.5]O3. J. Ame. Ceram. Soc. 84, 99–103 (2001)

    Article  Google Scholar 

  23. H. Takahashi, Y. Baba, K. Ezaki, Y. Okamoto, K. Shibata, K. Kuroki, S. Nakano, Dielectric characteristics of (A1/2 1+· A1/2 3+) TiO3 ceramics at microwave frequencies. Jpn. J. App. Phys. 30, 2339 (1991)

    Article  Google Scholar 

Download references

Acknowledgments

This work is supported by National Natural Science Funds of China (Grant No. 51402039).

Author information

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

    Zi-xuan Fang, Bin Tang, Feng Si & Shu-ren Zhang

Authors
  1. Zi-xuan Fang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Bin Tang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Feng Si
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Shu-ren Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Bin Tang.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Fang, Zx., Tang, B., Si, F. et al. Influence of CeO2 on microstructure and microwave dielectric properties of Na1/2Sm1/2TiO3 ceramics. J Mater Sci: Mater Electron 27, 1913–1919 (2016). https://doi.org/10.1007/s10854-015-3973-4

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10854-015-3973-4

Keywords

Search

Navigation