Advertisement

Interceram - International Ceramic Review

, Volume 63, Issue 4–5, pp 208–210 | Cite as

Protective Engobes for Si3N4 Ceramics Sintered in Air-Atmosphere Furnace

  • N. Tsanova
  • S. Djambazov
  • Y. Dimitriev
Building Materials
  • 3 Downloads

Abstract

Silicon nitride ceramics were sintered at 1640°C in an air-atmosphere furnace using an alumina crucible, alumina packing powder, and protective Al2O3 engobes as well as glass ceramic engobes obtained from the system SiO2-ZnO-Al2O3 The Si3N4 composite was prepared from β-Si3N4 powder with addition of MgO and Al2O3 as sintering aids. It was found that the densest silicon nitride ceramic with only partial oxidation was the sample covered with the Al2O3 engobe. Three phases were identified by XRD analysis: β-Si3N4, α-Si3N4, and Si2N2O. The obtained results are promising and encourage continuous research in this field to ensure protection from and prevention of intensive oxidation.

Keywords

Si3N4 ceramics air atmosphere protective engobes sintering 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Riley, F: Structural Ceramics: Fundamentals and Case Studies, Cambridge University Press (2009) 246–296Google Scholar
  2. [2]
    Singhal S.C.: J. Mater. Sci. 11 (1976) [3] 500–509CrossRefGoogle Scholar
  3. [3]
    Cubiccotti D., Lau K.H.: J. Am. Ceram. Soc. 61 (1978) [11–12] 512–517CrossRefGoogle Scholar
  4. [4]
    C.N. Babini, A. Bellosi and P. Vincenzini: J. Mater. Sci. 19 (1984) [3] 1029–1042CrossRefGoogle Scholar
  5. [5]
    Bouarroud A., Goursat P. and Besson J.L.: J. Mater. Sci. 20 (1985) [4] 1150–1159CrossRefGoogle Scholar
  6. [6]
    Mieskowski M., Sanders W.A.: J. Am. Ceram. Soc. 68 (1985) [7] C160–C163.CrossRefGoogle Scholar
  7. [7]
    Andrews P., Riley F.L.: J. Eur. Ceram. Soc. 5 (1989) [4] 245–256CrossRefGoogle Scholar
  8. [8]
    Biswas S.K., Mukerji J., Das P.K.: Key Eng. Mater. 89–91 (1994) 271–274Google Scholar
  9. [9]
    Wada S., Hattori T., Yokoyama K.: J. Ceram. Japan. 109 (2001) [1267] 281–283CrossRefGoogle Scholar
  10. [10]
    Djambazov S., Yoleva A., Hristov V., Valkanov S.: Proceedings 3rd Balkan Conference on Glass Science and Technology — edited by B. Samuneva, S. Bachvarov, I. Gutzow, Y. Dimitriev (2007) 96–101Google Scholar
  11. [11]
    Wada, S.: Material Integration. 14 (2001) [1] 7–11Google Scholar
  12. [12]
    Plucknett K.P., Lin H.T.: J. Am. Ceram. Soc. 88 (2005) [12] 3538–3541CrossRefGoogle Scholar
  13. [13]
    Wangmookland N, Sujirote K., Jinawath S., Wada S.: J. Eur. Ceram. Soc. 27 (2007) [4] 2111–2117CrossRefGoogle Scholar
  14. [14]
    Hansson R., Zhao B., Hayes P., Jak E.: Metall. Mater. Trans. B, 36B (2005) [2] 187–193CrossRefGoogle Scholar

Copyright information

© Springer Fachmedien Wiesbaden 2014

Authors and Affiliations

  • N. Tsanova
    • 1
  • S. Djambazov
    • 1
  • Y. Dimitriev
    • 1
  1. 1.University of Chemical Technology and MetallurgySofiaBulgaria

Personalised recommendations