Skip to main content
SpringerLink
Log in

Influence of SiO2 addition on the PTCR characteristics of Ba0.92(Bi0.5K0.5)0.08TiO3 ceramics

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

Abstract

As a candidate of lead-free positive temperature coefficient of resistivity (PTCR) materials, Ba0.92(Bi0.5K0.5)0.08TiO3–0.0005Nb2O5–xSiO2 (x = 0–0.03) ceramics were prepared by the conventional solid state reaction method. The effects of SiO2 addition on the crystal structure, microstructure and PTCR characteristics have been investigated. For x ≥ 0.01, the secondary phases of Ba2TiSi2O8 and BaSiO3 were found. SEM–EDS spectra revealed that the secondary phases existed at intergranular regions as liquid phase resulted in the enhancement of densification and the optimization of PTC effect. Scanning electron microscopy observations revealed that the grain size did not change greatly for all samples. With the increasing SiO2 content, the room temperature resistivity increased. For x = 0.001, the Curie temperature of the sample increased to 149.5 °C. A further study was conducted by impedance spectroscopy so as to study the effects of SiO2 addition on the resistivity of grains and grain boundaries.

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
Fig. 7

Similar content being viewed by others

References

  1. T. Murakami, T. Miyashita, M. Nakahara, E. Sekine, J. Am. Ceram. Soc. 56, 294–297 (1973)

    Article  Google Scholar 

  2. H. Takeda, W. Aoto, T. Shiosaki, Appl. Phys. Lett. 87, 163–170 (2005)

    Article  Google Scholar 

  3. J.Q. Qi, Z.L. Gui, Y.L. Wang, Ceram. Int. 28, 141–143 (2002)

    Article  Google Scholar 

  4. B. Huybrechts, K. Ishizaka, M. Takata, J. Mater. Sci. 30, 2463–2474 (1995)

    Article  Google Scholar 

  5. J.F. Wei, Y.P. Pu, Y.Q. Mao, J.F. Wang, J. Am. Ceram. Soc. 93, 1527–1529 (2010)

    Article  Google Scholar 

  6. S.L. Leng, G.R. Li, L.Y. Zheng, T.B. Wang, Q.R. Yin, J. Am. Ceram. Soc. 92, 2772–2775 (2009)

    Article  Google Scholar 

  7. H.L. Li, J.N. Kang, F. Guo, Ceram. Int. 39, 7589–7593 (2013)

    Article  Google Scholar 

  8. J.K. Lee, J.S. Park, K.S. Hong, J. Am. Ceram. Soc. 85, 1173–1179 (2002)

    Article  Google Scholar 

  9. M.A. Zubair, C. Leach. J. Appl. Phys. 103, 103711 (2008)

    Article  Google Scholar 

  10. H.P. Abicht, H.T. Langhammer, K.H. Felgner, J. Mater. Sci. 26, 2337 (1991)

    Article  Google Scholar 

  11. C.Y. Su, C. Pithan, D.F. Hennings, R. Waser, J. Eur. Ceram. Soc. 33, 2105–2116 (2013)

    Article  Google Scholar 

  12. D. Gulwade, P. Gopalan, Solid State Commun. 146, 340–344 (2008)

    Article  Google Scholar 

  13. G.S. Liu, R.D. Roseman, J. Mater. Sci. 34, 4439–4445 (1999)

    Article  Google Scholar 

  14. D.X. Zhou, X.X. Cheng, Q.Y. Fu, Ceram. Int. 38, 6389–6397 (2012)

    Article  Google Scholar 

  15. J.R. Dygas, G. Fafilek, M.W. Breiter, Solid State Ion. 119, 115–125 (1999)

    Article  Google Scholar 

  16. J.G. Kim, W.S. Cho, K. Park, Mater. Sci. Eng. B 94, 149–154 (2002)

    Article  Google Scholar 

  17. M.A. Zubair, C. Leach. J. Eur. Ceram. Soc. 30, 107–112 (2010)

    Article  Google Scholar 

  18. Q.L. Yin, S.G. Yuan, Q. Dong, C.G. Tian, J. Alloy Compd. 491, 340–343 (2010)

    Article  Google Scholar 

  19. X.X. Wang, H. L.W Chan, C.L. Choy. J. Eur. Ceram. Soc. 24, 1227–1231 (2004)

    Article  Google Scholar 

Download references

Acknowledgments

This research was supported by the National Natural Science Foundation of China (51372144), the New Century Excellent Talents Program of Chinese Education Ministry (NCET-11-1042), the Key Program of Innovative Research Team of Shaanxi Province (2014KCT-06) and the International Science and Technology Cooperation Project Funding of Shaanxi Province (2012KW-06).

Author information

Authors and Affiliations

  1. School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi’an, 710021, People’s Republic of China

    Jiaojiao Zhao, Yongping Pu, Yurong Wu & Panpan Zhang

Authors
  1. Jiaojiao Zhao
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Yongping Pu
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Yurong Wu
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Panpan Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Yongping Pu.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zhao, J., Pu, Y., Wu, Y. et al. Influence of SiO2 addition on the PTCR characteristics of Ba0.92(Bi0.5K0.5)0.08TiO3 ceramics. J Mater Sci: Mater Electron 26, 6051–6056 (2015). https://doi.org/10.1007/s10854-015-3182-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10854-015-3182-1

Keywords

Search

Navigation