Skip to main content
SpringerLink
Log in

Microwave dielectric properties of Mg4Nb2O9 ceramics produced by hydrothermal synthesis

  • Published:
Journal of Electroceramics Aims and scope Submit manuscript

Abstract

Mg4Nb2O9 ceramics have been prepared by a hydrothermal synthesis in order to reduce the sintering temperature. The sintering and microwave dielectric properties of the hydrothermally processed Mg4Nb2O9 were studied under various sintering temperatures ranging from 900 to 1300°C. The highest Q×f o value of 26,069 GHz was obtained at the sintering temperature of 1300°C and is attributed to the increased density and appropriate grain growth. τ f value of −17.1 ppm/°C was improved by the addition of TiO2 and τ f value of 6.7 ppm/°C was obtained at 20 wt% TiO2. Chemical compatibility of Mg4Nb2O9 with Ag was tested to identity the possibility of using Mg4Nb2O9 for an LTCC application. Since any secondary phase was not observed in the XRD pattern of the mixtures of Mg4Nb2O9 and Ag powder heat treated at 900°C, it was considered that the Mg4Nb2O9 system is applicable to the multilayer microwave devices using Ag as an electrode.

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. A. Kan, H. Ogawa, A. Yokoi, H. Ohsato, J. Appl. Phys. 42, 6154 (2003)

    Article  CAS  Google Scholar 

  2. Y. Choi, J. Park, W. Ko, J. Park, S. Nahm, J. Park, J. Electroceram. 14, 157 (2005)

    Article  CAS  Google Scholar 

  3. D. Kim, J. Kim, S. Yoon, K.S. Hong, C.K. Kim, J. Am. Ceram. Soc. 85, 2759 (2002)

    Article  CAS  Google Scholar 

  4. C. Huang, M. Weng, C. Lion, C. Wu, Mater. Res. Bull. 35, 2445 (2000)

    Article  CAS  Google Scholar 

  5. H.T. Kim, S.H. Kim, S. Nahm, J.D. Byun, J. Am. Ceram. Soc. 82, 3043 (1999)

    Article  CAS  Google Scholar 

  6. H.T. Kim, S. Nahm, J.D. Byun, Y. Kim, J. Am. Ceram. Soc. 82, 3476 (1999)

    Article  CAS  Google Scholar 

  7. A. Yokoi, H. Ogawa, A. Kan, H. Ohsato, Y. Higashida, J. Eur. Ceram. Soc. 25, 2871 (2005)

    Article  CAS  Google Scholar 

  8. J. Bang, J. Eur. Ceram. Soc. 27, 3855 (2007)

    Article  CAS  Google Scholar 

  9. X G. Tang, J.Z. Liu, K. W. Kwok, H.L. W. Chan, J. Electroceram. 14, 119 (2005)

    Article  CAS  Google Scholar 

  10. A. Kan, H. Ogawa, J. Alloys Comp. 364, 247 (2004)

    Article  CAS  Google Scholar 

  11. D. Andeen, L. Loeffler, N. Padture, F.F. Lange, J. Crystal Growth. 220, 191 (2000)

    Article  Google Scholar 

  12. B.W. Hakki, P.D. Coleman, IRE Trans. Microwave Theory Tech. 8, 402 (1960)

    Article  ADS  Google Scholar 

  13. J. Yang, S. Nahm, C. Choi, H. Lee, H. Park, J. Am. Ceram. Soc. 85, 165 (2002)

    Article  CAS  Google Scholar 

  14. S. Kucheiko, J. Choi, H. Kim, H. Jung, J. Am. Ceram. Soc. 79, 2739 (1996)

    Article  CAS  Google Scholar 

  15. S.Y. Cho, C.K. Kim, D. Kim, K.S. Hong, J. Mater. Res. 14, 2484 (1999)

    Article  CAS  ADS  Google Scholar 

Download references

Acknowledgements

This work was supported by MOCIE (RTI04-01-02) through the BIT Wireless Communication Devices Regional Innovation Center at Soonchunhyang University.

Author information

Authors and Affiliations

  1. Department of Materials Science and Engineering, Soonchunhyang University, Asan, Choongnam, 336-745, South Korea

    Sung-woo Lim & Jaecheol Bang

Authors
  1. Sung-woo Lim
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Jaecheol Bang
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Jaecheol Bang.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Lim, Sw., Bang, J. Microwave dielectric properties of Mg4Nb2O9 ceramics produced by hydrothermal synthesis. J Electroceram 23, 116–120 (2009). https://doi.org/10.1007/s10832-007-9322-0

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10832-007-9322-0

Keywords

Search

Navigation