Skip to main content
SpringerLink
Log in

Microwave dielectric properties of Ca4La2Ti5O17–LaAlO3 system ceramic materials

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

Abstract

Compositions in the (1 − x) Ca4La2Ti5O17–xLaAlO3 system were prepared in order to modify the positive temperature coefficient of the resonant frequency (τ f ) of Ca4La2Ti5O17. The microwave dielectric properties and phase composition of this system ceramics were investigated. X-ray powder diffraction results showed that Ca4La2Ti5O17 and LaAlO3 formed a solid solution only when x ≤ 0.2. The τ f values showed a near linear decrease with increasing additions of LaAlO3. It was observed that near zero τ f value can be achieved as x = 0.64. The permittivity (εr) and the quality factor (Q × f) values exhibited a non-linear behavior with LaAlO3 additions. The microwave dielectric properties were strongly correlated with composition, secondary phases and grain sizes. For practical application, a permittivity (εr) of 42, a quality factor (Q × f value) of 12,450 GHz and a temperature coefficient of resonant frequency (τ f ) of ~0 ppm/°C for 0.36 Ca4La2Ti5O17−0.64 LaAlO3 were proposed.

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

Similar content being viewed by others

References

  1. M.T. Sebastian, Dielectric materials for wireless communications (Elsevier Publishers, Oxford, 2008)

    Google Scholar 

  2. E.A. Nenasheva, L.P. Mudroliubova, N.F. Kartenko, J. Eur. Ceram. Soc. 23, 2443 (2003)

    Google Scholar 

  3. L. Fang, S.S. Men, H. Zhang, Z.Q. Liu, H.F. Liu, J. Electroceram. 21, 137 (2008)

    Google Scholar 

  4. H. Zheng, I.M. Reaney, G.D. Gyorgyfalva, R. Ubic, J. Yarwood, M.P.Seabra, V.M. Ferreira, J. Mater. Res. 19, 488 (2004)

    Google Scholar 

  5. I. M. Reaney, D. Iddles, J. Am. Ceram. Soc. 89, 2063 (2006)

  6. R. Rejini, G. Subodh, M.T. Sebastian, J. Mater. Sci.: Mater. Electron. 19, 1153 (2008)

    Google Scholar 

  7. E.R. Kipkoech, F. Azough, R. Freer, J. Appl. Phys. 97, 064103–1 (2005)

    Google Scholar 

  8. S.-Y Cho, I.-T Kim, K.S. Hong, J. Mater. Res 14, 114 (1999)

    Google Scholar 

  9. C.-H. Hsu, H.-A. Ho, Mater. Lett. 64, 396 (2010)

    Google Scholar 

  10. J. Zhu, E.R. Kipkoech, W. Lu, J. Eur. Ceram. Soc. 26, 2027 (2006)

    Google Scholar 

  11. D. Suvorov, M. Valant, S. Skapin, D. Kolar, J. Mater. Sci. 33, 85 (1998)

    Google Scholar 

  12. F. Azough, W. Wang, R. Freer, J. Am. Ceram. Soc. 92, 2093 (2009)

  13. X.M. Chen, D. Liu, R.Z. Hou, X. Hu, J. Am. Ceram. Soc. 87, 2208 (2004)

    Google Scholar 

  14. H. Liu, H. Yu, Z. Tian, Z. Meng, Z. Wu, S. Ouyang, J. Am. Ceram. Soc. 88, 453 (2005)

    Google Scholar 

Download references

Acknowledgments

This work was supported by the Natural Science Foundation of Guangxi Province, China (2010GXNSFA013029) and Specific Project Construction of Infrastructure Platform for Science and Technology, Guangxi, China (Grant No. 10-046-13).

Author information

Authors and Affiliations

  1. School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, China

    Guo-hua Chen, Jie-chang Di, Hua-rui Xu, Yun Yang, Chang-lai Yuan, Chang-rong Zhou, Jun Cheng & Xin-yu Liu

  2. Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin, 541004, China

    Guo-hua Chen, Hua-rui Xu, Yun Yang, Chang-lai Yuan, Chang-rong Zhou, Jun Cheng & Xin-yu Liu

Authors
  1. Guo-hua Chen
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Jie-chang Di
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Hua-rui Xu
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Yun Yang
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Chang-lai Yuan
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Chang-rong Zhou
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. Jun Cheng
    View author publications

    You can also search for this author in PubMed Google Scholar

  8. Xin-yu Liu
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Guo-hua Chen.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Chen, Gh., Di, Jc., Xu, Hr. et al. Microwave dielectric properties of Ca4La2Ti5O17–LaAlO3 system ceramic materials. J Mater Sci: Mater Electron 23, 280–284 (2012). https://doi.org/10.1007/s10854-011-0404-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10854-011-0404-z

Keywords

Search

Navigation