Skip to main content
SpringerLink
Log in

Thermal processing and properties of BaTi4O9 and Ba2Ti9O20 dielectric resonators

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

Abstract

Sn-doped and undoped barium titanates pressed powder pellets were sintered at 1360 and 1390°C for 5 h. Though batched to form Ba2Ti9O20, a two-phase microstructure of BaTi4O9 and TiO2 formed from the undoped system. The dielectric constant at 6 GHz was 40 without SnO2 additions. Doping with 1.64 mol % SnO2 stabilized Ba2Ti9O20 and formed a single-phase microstructure but resulted in higher porosity. Dilatometry studies implied that SnO2 additions facilitated a greater fraction of reaction to occur in the solid state, causing a lower quantity of pore-filling fluid to form above 1317°C. As a result of the higher porosity, the dielectric constants and quality factors were also reduced.

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

Similar content being viewed by others

References

  1. T. Negas, G. Yeager, S. Bell, N. Coats and I. Minis, Amer. Ceram. Soc. Bull. 72 (1993) 80.

    Google Scholar 

  2. A. J. Moulson and J. M. Herbert, “Electroceramics: materials, properties, and applications” (Chapman and Hall, New York, 1990).

    Google Scholar 

  3. G. H. Jonker and W. Kwestroo, J. Amer. Ceram. Soc. 41 (1958) 390.

    Google Scholar 

  4. J.-M. Wu and H.-W. Wang, ibid. 71 (1988) 869.

    Google Scholar 

  5. H. M. O'bryan, J. Thompson and J. K. Plourde, ibid. 57 (1988) 450.

    Google Scholar 

  6. J. Yu, H. Zhao, J. Wang and F. Xia, ibid. 77 (1994) 1052.

    Google Scholar 

  7. K. Lukaszewicz, Rocz. Chem. 31 (1957) 1111.

    Google Scholar 

  8. P. K. Davies and R. S. Roth, J. Solid State Chem. 71 (1987) 490.

    Google Scholar 

  9. H. Tamura, Amer. Ceram. Soc. Bull. 73 (1994) 92.

    Google Scholar 

  10. Y. Kobayashi and M. Katoh, IEEE Trans. on Microwave Theory Tech. MTT-33 (1985) 586.

    Google Scholar 

  11. R. C. Weast, “CRC handbook of chemistry and physics” (CRC Press, Ohio, 1977).

    Google Scholar 

  12. G. S. Zhbdanov, “Crystal physics” (Academic Press, New York, 1965).

    Google Scholar 

  13. D. E. Rase and R. Roy, J. Amer. Ceram. Soc. 38 (1955) 103.

    Google Scholar 

  14. H. M. O'bryan and J. Thompson, ibid. 57 (1974) 522.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332-0245

    Wen-Yi Lin, Rosario A. Gerhardt & Robert F. Speyer

  2. Materials Research Laboratory, ITRI, Chutong, Taiwan

    Jen Yan Hsu

Authors
  1. Wen-Yi Lin
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Rosario A. Gerhardt
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Robert F. Speyer
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Jen Yan Hsu
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Lin, WY., Gerhardt, R.A., Speyer, R.F. et al. Thermal processing and properties of BaTi4O9 and Ba2Ti9O20 dielectric resonators. Journal of Materials Science 34, 3021–3025 (1999). https://doi.org/10.1023/A:1004624510902

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1004624510902

Keywords

Search

Navigation