Skip to main content
SpringerLink
Log in

Refractories in the MgO-Y2O3 system

  • Scientific Research
  • Published:
Refractories Aims and scope

Conclusions

We established the positive influence of yttrium oxide on the volatilization of ceramics in the MgO-Y2O3 system in vacuum at 1923–2073°K.

According to the results of x-ray-phase, x-ray structural, and microprobe testings, the reduction in the volatilization of magnesia ceramics due to the introduction of yttria cannot be explained by the formation of solid solutions or chemical compounds.

On the basis of the investigation of magnesia ceramics with additions of Y2O3 in characteristic radiation Y Lα and Mg Kα we propose a mechanism for the shielding of the grains of MgO by yttrium oxide, as a result of which there is a substantial reduction in the free surface volatilization of the periclase.

We established the positive influence of Y2O3 on the sintering of MgO. The yttria, concentrating on the grain boundaries of MgO, as is assumed, carries out the role of intrinsic “lubricant”, facilitating the slipping of the particles during sintering, and a contribution is possible from boundary diffusion or contact fusion.

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

Literature cited

  1. K. K. Strelov, Structure and Properties of Refractories [in Russian], 2nd ed., Metallurgiya, Moscow (1982).

    Google Scholar 

  2. G. V. Samsonov (ed.), Physiochemical Properties of Oxides (Handbook) [in Russian], Metallurgiya, Moscow (1978).

    Google Scholar 

  3. L. B. Borovkova, E. S. Lukin, and D. N. Poluboyarinov, Ogneupory, No. 11, 39–45 (1970).

    Google Scholar 

  4. S. G. Tresvyatskii and L. M. Lopato, Poroshk. Metall., No. 5, 35–39 (1964).

    Google Scholar 

  5. L. M. Lopato and S. G. Tresvyatskii, Poroshk. Metall., No. 6, 32–35 (1963).

    Google Scholar 

  6. L. M. Lopato, S. G. Tresvyatskii, and A. A. Ogorodnikov, Izv. Akad. Nauk SSSR, Neorg. Mater., No. 11, 2020 (1971).

    Google Scholar 

  7. H. E. Otto, C. R. Lehin, and H. F. Dobbins, in: The Murdie Phase Diagrams for Ceramists, Columbus (1964), p. 30.

  8. I. I. Vishnevskii, Izv. Akad. Nauk SSSR, Neorg. Mater., No. 7, 1276–1279 (1979).

    Google Scholar 

  9. Ya. E. Geguzin, Why and How the Cavity Disappears [in Russian], 2nd ed., Nauka, Moscow (1983).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. S. M. Kirov Urals Polytechnical Institute, USSR

    K. K. Strelov, V. A. Kamenskikh, Yu. P. Gilev & S. G. Sennikov

Authors
  1. K. K. Strelov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. V. A. Kamenskikh
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Yu. P. Gilev
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. S. G. Sennikov
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Translated from Ogneupory, No. 9, pp. 6–10, September, 1984.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Strelov, K.K., Kamenskikh, V.A., Gilev, Y.P. et al. Refractories in the MgO-Y2O3 system. Refractories 25, 497–502 (1984). https://doi.org/10.1007/BF01397828

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01397828

Keywords

Search

Navigation