Refractories and Industrial Ceramics

, Volume 49, Issue 3, pp 189–193 | Cite as

Features of phase transitions in electrolyzer hearth block material between joints

  • V. V. Sharapova
  • B. P. Sereda
Scientific Research and Development

Phase transitions are considered for silicon oxycarbide material between joints in hearth blocks under aluminum electrolyzer operating conditions. It is established that in the electrolyzer there is formation of aluminum subcarbide, and also there is conversion of silicon carbide polytypes as a result of impurities of aluminum, sodium, magnesium, copper and iron. Due to phase transitions there is a reduction in joint strength, and therefore it is undesirable to use material based on corundum and black silicon carbide in hearth joints between blocks for aluminum electrolyzers. Use of pure α-SiO2 free from impurities is recommended for this purpose.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    A. L. Yurkov, “Refractories and carbon cathode materials for the aluminum industry,” Refractories and industrial ceramics, 47, No. 13, 139–145 (2006).CrossRefGoogle Scholar
  2. 2.
    G. V. Solonin, I. I. Lishchuk, V. V. Chesnyak, et al., “Study of processes occurring in hearth joint in an aluminum electrolyzer,” Tsvetnye Metally, No. 11, 63–66 (2004).Google Scholar
  3. 3.
    I. N. Frantsevich (editor), Silicon Carbide (Structure, Properties, Fields of Application) [in Russian], Naukova Dumka, Kiev (1966).Google Scholar
  4. 4.
    A. I. Belyaev, “Role of univalent aluminum in electrolytic preparation of aluminum,” Tsvetnye Metally, No. 6, 40–41 (1953).Google Scholar
  5. 5.
    D. V. Pruttskov, A. D. Bukher, V. P. Pirozhkova, et al., “Breakdown mechanism of aluminum electrolyzer linings,” Zh. Prikl. Khim, No. 1, 61–66 (1986).Google Scholar
  6. 6.
    L. V. Gurevich, I. V. Veits, V. A. Medvedev, et al., Thermodynamic Properties of Individual Substances: Reference edition in 4 vol., 3 rd ed. Reworked and expanded; Vol. 3, Book 1 [in Russian], Nauka, Moscow (1981); Vol. 3, Book 2, Nauka, Moscow (1981).Google Scholar
  7. 7.
    M. V. Rappaport, Carbon-Graphite Interlayer Joints and Their Value in Aluminum Metallurgy [in Russian], TsNII tsvetmetinformatsiya, Moscow (1967).Google Scholar
  8. 8.
    D. A. Frank-Kamenetskii, Diffusion and Heat Transfer in Chemical Kinetics [in Russian], Nauka, Moscow (1967).Google Scholar
  9. 9.
    A. I. Pogodaev, A. F. Shimanskii, I. S. Yakimov, et al., “Evolution of the composition of aluminosilicate refractory materials during operation of an aluminum electrolyzer,” Tsvetnye Metally, No. 3, 46–50 (2005).Google Scholar
  10. 10.
    Ya. E. Geguzin and M. A. Krivoglaz, Movement of Macroscopic Inclusions in Solids [in Russian], Metallurgiya, Moscow (1971).Google Scholar
  11. 11.
    V. P. Pirozhkova, L. K. Chebotar', and V. V. Lunev, “Mechanism of screen-like porosity formation in gray cast iron casting,” Izv. Vyssh. Uchebn. Zaved., Chernaya Metallurgiya, No. 7, 93–95 (1990).Google Scholar
  12. 12.
    V. A. Bychinskii, I. I. Shepelev, N. V. Golovnykh, et al., “Study of methods for cutting down drainage from slurry reservoirs into underground and river water by physicochemical activation of belite slurry,” Izv. Vyssh. Uchebn. Zaved., Tsvetnaya Metallurgiya, No. 4, 24–25 (2007).Google Scholar
  13. 13.
    A. N. Winchel and G. V. Winchel, Optical Properties of Artificial Minerals [Russian translation], Mir, Moscow (1967).Google Scholar
  14. 14.
    L. I. Derkachenko, G. M. Zaretskaya, A. P. Obukhov, et al., Mineralogy of Silicon Carbide (Silicon Carbide in Crude Stone and Rocks) [in Russian], Nauka, Leningrad Div., (1972).Google Scholar
  15. 15.
    D. E. Temkin and E. V. Givargizova (editors) Theory and Practice of Crystal Growth [Russian translation], Metallurgiya, Moscow (1968).Google Scholar
  16. 16.
    A. T. Tabereaus, “Reviewing advances if cathode refractory materials,” J. of Metals, No. 11, 20–26 (1992).Google Scholar

Copyright information

© Springer Science+Business Media, Inc. 2008

Authors and Affiliations

  • V. V. Sharapova
    • 1
  • B. P. Sereda
    • 1
  1. 1.GP UkrNIIspetsstal’, Zaporozhe State Engineering AcademyZaporozheUkraine

Personalised recommendations