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Refractories and Industrial Ceramics

, Volume 39, Issue 7–8, pp 283–287 | Cite as

Cold isostatic pressing as a method for fabricating ceramic products with high physicomechanical properties

  • G. Ya. Akimov
Research

Abstract

The experimental results published by the author and his co-workers in 24 earlier works and novel original data are analyzed. It is shown that the process of cold isostatic pressing (CIP) occurs with mechanical activation of the powder particles due to their self-deformation with a simultaneous self-compaction of the semiproduct. The CIP process of powders or traditionally shaped preforms is shown to elevate their density and activate the sintering processes but diminish their sintering temperature and increase the density, strength and crack resistance of the ceramics. The use of surface-active substances (SAS) in CIP is shown to elevate the level of the physicomechanical properties of the ceramics. The basic concepts of controlling the properties of ceramics by choosing the appropriate dispersity of the powder, the CIP pressure, the SAS, and the sintering regime are presented.

Keywords

Crack Resistance Physicomechanical Property High Hydrostatic Pressure Mechanochemical Activation Cold Isostatie Press 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    G. Ya. Akimov, “The phenomenon of self-deformation in hydrostatic pressing of powders consisting of ion-covalent single crystals of a submicron size,”FTT,38(2), 654–658 (1996).Google Scholar
  2. 2.
    A. A. Galkin, G. Ya. Akimov, V. I. Zaitsev, and V. A. Strel’tsov, “Dislocation density in NaCl single crystals deformed at a high hydrostatic pressure,”Dokl. Akad. Nauk SSSR,247(5), 1140–1142(1979).Google Scholar
  3. 3.
    G. Ya. Akimov and I. Yu. Prokhorov, “Fracture of hydrostatically compressed NaCl single crystals,”Phys. Stat. Sol. (A),79(2), 423–431(1983).CrossRefGoogle Scholar
  4. 4.
    G. Ya. Akimov, V. V. Storozh, and G. K. Volkova, “Effect of hydrostatic compression on the substructure and subsequent sintering of magnesium oxide powders of various dispersities,”Fiz. Tekh. Vysok. Davl., Issue 32, Naukova Dumka, Kiev (1989).Google Scholar
  5. 5.
    V. V. Storozh, G. Ya. Akimov, G. K. Volkova, and M. P. Gazhura, “Hydrostatic treatment of powder aluminum alpha-oxide. Part. 1. Microstructure of particles and sintering,”Ogneupory, No. 6, 13–19 (1994).Google Scholar
  6. 6.
    G. Ya. Akimov, V. M. Timchenko, and I. V. Gorelic, “Special features of phase transformations in fine disperse zirconia deformed by a high hydrostatic pressure,”FTT,36(12), 3582–3586(1994).Google Scholar
  7. 7.
    D. S. Rutman, Yu. S. Toropov, S. Yu. Pliner, et al.,Highly Refractory Zirconia Materials [in Russian], Metallurgiya, Moscow (1985).Google Scholar
  8. 8.
    J. Christian,The Theory of Transformations in Metals and Alloys, Pergamon Press, Oxford (UK) (1975).Google Scholar
  9. 9.
    V. V. Storozh, G. Ya. Akimov, I. V. Gorelik, and N. G. Labinskaya, “Polymorphic transformations in alumina,”Zh. Teor. Fiz.,64(11), 172–174(1994).Google Scholar
  10. 10.
    Ya. E. Geguzin,The Physics of Sintering [in Russian], Nauka, Moscow (1967).Google Scholar
  11. 11.
    A. A. Dabizha, A. V. Prokof’ev, G. Ya. Akimov, and V. A. Fomchenko, “The role of mechanochemical activation in the formation of structure and properties in reaction-bonded ceramics based on mullite and zirconia,”Ogneupory, No. 4, 2–3 (1993).Google Scholar
  12. 12.
    G. Ya. Akimov, V. V. Storozh, A. V. Prokof ev, and A. A. Dabizha, “Effect of the medium in mechanochemical activation of powder on the formation or reaction-bonded ceramics in the A12O3 SiO2-ZrO2 system,”Ogneupory, No. 9, 14–17 (1993).Google Scholar
  13. 13.
    A. A. Dabizha, V. V. Moiseev, N. A. Dabizha, et al., “Effect of hydrostatic compression on densification and sintering of corundum castings,”Ogneupory, No. 4, 6–9 (1988).Google Scholar
  14. 14.
    A. A. Dabizha, V. I. Ulrikh, N. A. Dabizha, et al., “Reactionbonded ceramics in the ZrO2-Y2O-A12O3-TiO2 system,”Ogneupory, No. 1, 18–21 (1989).Google Scholar
  15. 15.
    G. Ya. Akimov, V. M. Tmchenko, and I. V. Gorelik, “Effect of the cold isostatic pressing conditions on the properties of the powder compacts,”Int. Conf. Shaping of Advanced Ceramics,Ext. Abst. Mol., Belgium, April 25-27, 1995, (1995), pp 47–50.Google Scholar
  16. 16.
    G. Ya. Akimov, I. Yu. Prokhorov, and E. V. Chaika, “Experimental method for manufacturing ceramic parts,”Ogneup. Tekh. Keram., No. 6, 15–27 (1996).Google Scholar
  17. 17.
    G. Ya. Akimov, E. V. Chaika, and V. M. Timchenko, “Effect of the firing temperature of aluminum hydroxide on the possibility of shaping articles with the help of CIP and on the properties of corundum ceramics,”Ogneup. Tekh. Keram., No. 11, 34–36 (1996).Google Scholar
  18. 18.
    V. V. Storozh and G. Ya. Akimov, “Effect of hydrostatic treatment of powder on physicomechanical properties of sintered magnesium oxide,”Ogneupory, No. 5, 13–15 (1992).Google Scholar
  19. 19.
    G. Ya. Akimov, V. M. Timchenko, and P. A. Arsen’ev, “Mechanical properties of specimens of hydroxyapatite fabricated by cold isostatic pressing,”Ogneupory, No. 5, 19–21 (1994).Google Scholar
  20. 20.
    G. Ya. Akimov, I. Yu. Prokhorov, I. V. Gorelik, et al., “The role of cold isostatic pressing in the formation of properties of ZrO2-base ceramics fabricated from ultradisperse powders,”Ogneupory, No. 2, 12–19 (1995).Google Scholar
  21. 21.
    G. Ya. Akimov, A. A. Dabizha, and V. I. Ulrikh, “High stability of mechanical properties: a result of hydrostatic treatment of semiproducts,” in:Structures and Technologies for Manufacturing Parts from Nonmetallic Materials. Part 1. High-Strength Ceramic Materials, Abs. Rep. XI All-union Conf. Obninsk, 1988 [in Russian], VNII Mezhotrasl. Inf., Moscow (1988).Google Scholar
  22. 22.
    G. Ya. Akimov and V. V. Storozh, “Compacting by a high hydrostatic pressure and subsequent sintering of MgO powder,”Fiz. Khim. Obrab. Mat., No. 4, 112–115 (1989).Google Scholar
  23. 23.
    A. A. Dabizha, V. V. Storozh, G. Ya. Akimov, and N. A. Dabizha, “Effect of hydrostatic treatment of semiproducts and sintering regimes on the properties of ceramics in the thialite mullite corundum system,”Ogneupory, No. 2, 12–15(1993).Google Scholar
  24. 24.
    V. V. Storozh, G. Ya. Akimov, N. G. Labinskaya, et al., “Effect of hydrostatic treatment of the sol-gel powder on the sintering and properties of ceramics in the A12O3-SiO2-ZrO3 system,”Ogneupory, No. 12, 13–17 (1993).Google Scholar
  25. 25.
    V. V. Storozh and G. Ya. Akimov, “Hydrostatic treatment of powder alpha-alumina,” Part 2. Estimating the mechanisms of acceleration of sintering,”Ogneupory, No. 9, 14–20 (1994).Google Scholar
  26. 26.
    G. Ya. Akimov, V. M. Timchenko, and E. V. Chaika, “Effect of the pressure of cold isostatic pressing and the sintering temperature of the properties of ceramics from partially stabilized ZrO2,”Ogneup. Tekh. Keram., No. 8, 17–21 (1997).Google Scholar
  27. 27.
    S. Yu. Pliner, Yu. I. Komolikov, and V. G. Peichev, “Effect of hydrostatic treatment on the properties of ceramics from tetragonal zirconia,”Ogneupory, No. 4, 9–11 (1988).Google Scholar
  28. 28.
    A. P. Andrievskii and I.I. Spivak,Strength of Refractory Compounds and Materials Based on Them [in Russian], Metallurgiya, Chelyabinsk (1989).Google Scholar
  29. 29.
    P. A. Rebinder and E. D. Shchukin, “Surface phenomena in solids in the processes of their deformation and fracture,”Usp. Fiz. Nauk,108(1), 3 -42 (1972).Google Scholar
  30. 30.
    V. V. Storozh, G. Ya. Akimov, and N. G. Labinskaya, “An x-ray study of the effect of adsorbed substances on the formation of dislocations in the process of deformation of alumina single crystals,”FTT,37(4), 1244–1246 (1995).Google Scholar

Copyright information

© Kluwer Academic/Plenum Publishers 1999

Authors and Affiliations

  • G. Ya. Akimov
    • 1
  1. 1.Donetsk Physicotechnical Institute of the National Academy of Sciences of UkraineDonetskUkraine

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