Skip to main content
Log in

Formation of microstructure in bauxite ceramics

  • Research
  • Published:
Refractories and Industrial Ceramics Aims and scope

Abstract

The effect of TiO2 additives on the formation of the microstructure of bauxite ceramics is considered. It is shown that the thialite phase formed in the roasting process “cleans” the corundum phase and the glass phase from impurities. The thialite grains reinforce the corundum matrix, hamper the growth of corundum grains in roasting, and improve the resistance of the material to crack propagation when it fractures. Playing the role of bridges connecting the “banks” of a crack, thialite grains enhance the crack resistance of the material.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. N.M. Pavlushkin,Sintered Corundum [in Russian], Gosstroiizdat, Moscow (1961).

  2. E. S. Lukin, “Modern high-density oxide ceramics with controlled microstructure,”Ogneup. Tekh. Keram., No. 4, 2–13 (1996).

    Google Scholar 

  3. E. S. Lukin, “Modern high-density oxide ceramics with controlled microstructure,”Ogneup. Tekh. Keram., No. 5, 2–9 (1996).

  4. B. A. Goldin, Z. I. Kormshchikova, and Yu. I. Ryabkov, “Crack-resistant ceramics based on bauxites,”Ogneup. Tekh. Keram., No. 9, 2–6(1998).

    Google Scholar 

  5. B. K. Vainshtein, V. M. Fridkin, and V. L. Indenbom,Modern Crystallography, Vol. 2 [in Russian], Nauka, Moscow (1979).

  6. H. Song and R. L. Coble, “Origin and growth kinetics of platelike abnormal grains in liquid-phase-sintered alumina,”J. Am. Ceram. Soc,7(73), 2077–2085 (1990).

    Article  Google Scholar 

  7. J. Rodel and A. M. Glaeser, “Anisotropy of grain growth in alumina,”J. Am. Ceram. Soc.,11(73), 3292–3300 (1990).

    Article  Google Scholar 

  8. C. A. Handwerker, P. A. Morris, and R. L. Coble, “Effect of chemical inhomogeneities on grain growth and microstructurein Al2O3J. Am. Ceram. Soc,1(72), 130–36 (1989).

    Article  Google Scholar 

  9. V. Ya. Shevchenko and S. M. Barinov,Technical Ceramics [in Russian], Nauka, Moscow (1993).

  10. K. Khamako, “Effect of titania on sintering of alumina ceramics,”Ege Kekaisi,5(94), 505–511 (1986).

    Google Scholar 

  11. N. A. Toropov, V. P. Barzakovskii, V. V. Lapin, and N. N. Kurtseva,Phase Diagrams of Silicate Systems, A Handbook [in Russian], Nauka, Moscow (1969).

  12. D. D. Gulamova and M. Kh. Sarkisova, “Effect of additives and the method of synthesis on the properties of ceramics from aluminum titanate,”Ogneupory, No. 7, 18 — 21 (1993).

  13. G. N. Shveikin, B. N. Dudkin, T. L. Lekanova, and O. A. Sevbo, “Effect of the nonstoichiometry of titania and titanium (III) oxide additives on the properties of ceramics obtained by relaxation sintering from alumotitanate,”Neorg. Mater.,29(6), 859–861 (1993).

    CAS  Google Scholar 

  14. L. Yu. Nazarova, V. é. Grass, and P. V. Istomin, “X-ray investigation of products of carbothermal reduction of leucoxenes,” in:Nauch. Dokl. Komi NTs UrO RAN, Issue 378 [in Russian], Komi NTs UrO RAN, Syktyvkar (1996).

  15. R. F. Cook and A. G. Schrott, “Calcium segregation to grain boundaries in alumina,”J. Am. Ceram. Soc,1(71), 50–58 (1988).

    Article  Google Scholar 

  16. S. M. Barinov, N. V. Ivanov, S. V. Orlov, and V. Ya. Shevchenko, “Effect of loading rate on the strength of GB-7 ceramics,”Ogneup. Tekh. Keram., No. 5, 11 13 (1998).

  17. A. G. Evans, “Perspective of the development of high-toughness ceramics,”J. Am. Ceram. Soc,2(73), 187–206(1990).

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

Translated from Ogneupory i Tekhnicheskaya Keramika, No. 3, pp. 2–6, March, 2000.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kormshchikova, Z.I., Goldin, B.A., Ryabkov, Y.I. et al. Formation of microstructure in bauxite ceramics. Refract Ind Ceram 41, 75–79 (2000). https://doi.org/10.1007/BF02693831

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02693831

Keywords

Navigation