Skip to main content
SpringerLink
Log in

Dielectric behavior associated with the synergetic microstructure and oxygen vacancies in CaCu3Ti4O12 ceramics

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

Abstract

CaCu3Ti4O12 (CCTO) ceramics has been successfully fabricated by sol–gel processing. The microstructure of CCTO ceramics sintered at 1050 °C exhibits the inhomogeneity with the large grain in the order of several tens of micrometers separated by the nano-scale small grain in the grain boundary. And with the sintered temperatures increasing to 1075 °C, the small grain in the grain boundary gradually grows up, accompanied by the emergence of secondary phase CuxO. The temperature dependence of dielectric properties has been demonstrated that with the emergence of secondary phase, the dielectric constant for the ceramics sintered at 1075 °C is inferior to the one of the ceramics sintered at 1050 °C from room temperature to 250 °C. Defect model related to the contribution of the second ionized oxygen vacancies in the grain boundary are proposed, supported by the thermal activation theory.

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
Fig. 8

Similar content being viewed by others

References

  1. M.A. Subramanian, L. Dong, N. Duan, B.A. Reisner, A.W. Sleight, J. Solid State Chem. 151, 323–325 (2000)

    Article  Google Scholar 

  2. A.P. Ramirez, M.A. Subramanian, M. Gardel, G. Blumberg, D. Li, T. Vogt, S.M. Shapiro, Solid State Commun. 115, 217–220 (2000)

    Article  Google Scholar 

  3. C.C. Homes, T. Vogt, S.M. Shapiro, S. Wakimoto, A.P. Ramirez, Science 293, 673–676 (2001)

    Article  Google Scholar 

  4. D.C. Sinclair, T.A. Adams, F.D. Morrison, A.R. West, Appl. Phys. Lett. 80, 2153–2155 (2002)

    Article  Google Scholar 

  5. T.B. Adams, D.C. Sinclair, A.R. West, Adv. Mater. 14, 1321–1323 (2002)

    Article  Google Scholar 

  6. P. Lunkenheimer, R. Fichtl, S.G. Ebbinghaus, A. Loidl, Phys. Rev. B 70, 172102 (2004)

    Article  Google Scholar 

  7. L. Zhang, Z.J. Tang, Phys. Rev. B 70, 174306 (2004)

    Article  Google Scholar 

  8. A.R. West, T.B. Adams, F.D. Morrison, D.C. Sinclair, J. Eur. Ceram. Soc. 24, 1439–1448 (2004)

    Article  Google Scholar 

  9. G. Chiodeli, V. Massarotti, D. Capsoni, M. Bini, C.B. Azzoni, M.C. Mozzati, P. Lupotto, Solid State Commun. 132, 241–246 (2004)

    Article  Google Scholar 

  10. D. Capsoni, M. Bini, V. Massarotti, G. Chiodelli, M.C. Mozzatic, C.B. Azzoni, J. Solid State Chem. 177, 4494–4500 (2004)

    Article  Google Scholar 

  11. S.V. Kalinin, J. Shin, G.M. Veith, A.P. Baddorf, M.V. Lobanov, H. Runge, M. Greenblatt, Appl. Phys. Lett. 86, 102902 (2005)

    Article  Google Scholar 

  12. S.F. Shao, J.L. Zhang, P. Zheng, W.L. Zhong, C.L. Wang, J. Appl. Phys. 99, 084106 (2006)

    Article  Google Scholar 

  13. L. Singh, I.W. Kim, W.S. Woo, B.C. Sin, H.-I. Lee, Y. Lee, Solid State Sci. 43, 35–45 (2015)

    Article  Google Scholar 

  14. L.M. Jesus, J.C.A. Santos, D.V. Sampaio, L.B. Barbosa, R.S. Silva, J.-C. M’Peko, J. Alloys Compd. 654, 482–490 (2016)

    Article  Google Scholar 

  15. B. Barbier, C. Combettes, S. Guillemet-Fritsch, T. Chartier, F. Rossignol, A. Rumeau, T. Lebey, E. Dutarde, J. Eur. Ceram. Soc. 29, 731–735 (2009)

    Article  Google Scholar 

  16. W. Wan, C.K. Liu, H.Y. Sun, Z.K. Luo, W.-X. Yuan, H.S. Wu, T. Qiu, J. Eur. Ceram. Soc. 35, 3529–3534 (2015)

    Article  Google Scholar 

  17. R. Kumar, M. Zulfequar, V.N. Singh, J.S. Tawale, T.D. Senguttuvan, J. Alloys Compd. 541, 428–432 (2012)

    Article  Google Scholar 

  18. Z. Li, H.Q. Fan, Solid State Ionics 192, 682–687 (2011)

    Article  Google Scholar 

  19. N. Kolev, R.P. Bontchev, A.J. Jacobson, V.N. Popov, V.G. Hadjiev, A.P. Litvinchuk, M.N. Iliev, Phys. Rev. B 66, 132102 (2002)

    Article  Google Scholar 

  20. L. He, J.B. Neaton, M.H. Cohen, D. Vanderbilt, C.C. Homes, Phys. Rev. B 65, 214112 (2002)

    Article  Google Scholar 

  21. L. He, J.B. Neaton, D. Vanderbilt, M.H. Cohen, Phys. Rev. B 67, 012103 (2003)

    Article  Google Scholar 

  22. D. Valim, A.G. Souza Filho, P.T.C. Freire, S.B. Fagan, A.P. Ayala, J. Mendes Filho, A.F.L. Almeida, P.B.A. Fechine, A.S.B. Sombra, J. Staun Olsen, L. Gerward, Phys. Rev. B 70, 132103 (2004)

    Article  Google Scholar 

  23. R. Coelho, Physics of Dielectrics (Elsevier, New York, 1978)

    Google Scholar 

  24. A.S. Nowick, B.S. Berry, Anelastic Relaxation in Crystalline Solids (Academic, New York, 1972)

    Google Scholar 

  25. A. Chen, Z. Yu, L.E. Cross, Phys. Rev. B 62, 228–236 (2000)

    Article  Google Scholar 

  26. S.A. Long, R.N. Blumenthal, J. Am. Ceram. Soc. 54, 577–583 (1971)

    Article  Google Scholar 

  27. O. Bidault, P. Goux, M. Kchikech, M. Belkaoumi, M. Maglione, Phys. Rev. B 49, 7868–7873 (1994)

    Article  Google Scholar 

  28. I. Burn, S. Neirman, J. Mater. Sci. 17, 3510–3524 (1982)

    Article  Google Scholar 

Download references

Acknowledgments

This work has been supported by the National Key Basic Research Program of China (2015CB655105), the Natural Science Foundation of Shaanxi Province (2015JQ5190), the Special Fund for Basic Scientific Research of Central Colleges (310831161006), Chang’an University, and the fund of the State Key Laboratory of Solidification Processing in NWPU (SKLSP201409) of China.

Author information

Authors and Affiliations

  1. School of Materials Science and Engineering, Chang’an University, Xi’an, 710061, China

    Zhuo Li, Peng Zhao, Zhuo Wang, Xiaohui Xue & Zongting Li

  2. State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an, 710072, China

    Huiqing Fan

Authors
  1. Zhuo Li
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Peng Zhao
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Zhuo Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Xiaohui Xue
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Zongting Li
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Huiqing Fan
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Zhuo Li.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Li, Z., Zhao, P., Wang, Z. et al. Dielectric behavior associated with the synergetic microstructure and oxygen vacancies in CaCu3Ti4O12 ceramics. J Mater Sci: Mater Electron 27, 7327–7334 (2016). https://doi.org/10.1007/s10854-016-4702-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10854-016-4702-3

Keywords

Search

Navigation