Journal of Materials Science

, Volume 25, Issue 8, pp 3449–3455 | Cite as

Powder preparation and compaction behaviour of fine-grained Y-TZP

  • W. F. M. Groot Zevert
  • A. J. A. Winnubst
  • G. S. A. M. Theunissen
  • A. J. Burggraaf
Article

Abstract

Two wet chemical preparation methods are described for yttria-doped tetragonal zirconia powders. Both methods yield powders with an extremely small crystallite size (8 nm) and a narrow size distribution. The agglomerate and aggregate structure of these powders have been investigated by several techniques. Gel precipitation from an alkoxide solution in water (“alkoxide” synthesis) results in a ceramic powder with irregular-shaped weak and porous agglomerates, which are built up from dense aggregates with a size of 18 nm. Gel precipitates formed from a metal-chloride solution in ammonia (“chloride” synthesis) do not contain aggregates. Both types of agglomerate are fractured during isostatic compaction. Hydrolysis and washing under (strong) basic conditions probably decrease the degree of aggregation. The aggregate morphology and structure are key parameters in the microstructure development during sintering of a ceramic. Several characteristics of these powders are compared with those of a commerical one (Toyo Soda TZ3Y).

Keywords

Compaction Alkoxide Narrow Size Distribution Tetragonal Zirconia Small Crystallite Size 

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References

  1. 1.
    F. F. Lange,J. Mater. Sci. 17 (1982) 240.Google Scholar
  2. 2.
    T. Sato andS. Shimada,J. Amer. Ceram. Soc. 68 (1985) 356.Google Scholar
  3. 3.
    A. J. A. Winnubst, A. J. Burggraaf, “Advances in Ceramics, Vol. 24, Edited by S. Sorniya, N. Yamamoto and H. Yanagida (American Ceramic Society, Columbus, Ohio, 1989). p. 39.Google Scholar
  4. 4.
    D. E. Niesz, R. B. Bennett andM. J. Snyder,Amer. Ceram. Bull. 51 (1972) 677.Google Scholar
  5. 5.
    J. W. Halloran, in “Advances in Ceramics”, Vol. 9, edited by J. A. Mangels and G. L. Messing (American Ceramic Society, Columbus, Ohio, 1984) pp. 67–75.Google Scholar
  6. 6.
    J. W. Halloran, in “Ultrastructure Processing of Ceramics, Glasses and Composites”, edited by L. L. Hench and D. R. Ulrich (Wiley New York, 1984) p. 404.Google Scholar
  7. 7.
    A. J. Lecloux, P. Verleye, J. Bronckart, F. Noville, P. Marchot andJ. P. Pirard,Reactiv. Solids 4 (1988) 309.Google Scholar
  8. 8.
    M. A. C. G. Van De Graaf, J. H. H. Ter Maat andA. J. Burggaaf,J. Mater. Sci. 20 (1985) 1407.Google Scholar
  9. 9.
    M. A. C. G. Van De Graaf andA. J. Burggraaf in “Advances in Ceramics”, Vol. 12, edited by N. Claussen, M. Ruhle and A. H. Heuer, (American Ceramic Society, Columbus, Ohio, 1984) pp. 744–755.Google Scholar
  10. 10.
    M. A. C. G. Van De Graaf, T. Van Dirjk, M. A. De Jongh, A. J. Burggraaf, in “Science of Ceramics”, Vol. 9, edited by K. J. De Vries (Dutch Ceramic Society, The Netherlands, 1977) pp. 75–83.Google Scholar
  11. 11.
    A. G. Evans,J. Amer. Ceram. Soc. 65 (1982) 497.Google Scholar
  12. 12.
    H. Bosch andA. Peppelenbos,J. Phys. E. Sci. Instrum. 10 (1977) 605.Google Scholar
  13. 13.
    D. Dollimore andG. R. Heal,J. Appl. Chem. 14 (1964) 109.Google Scholar
  14. 14.
    P. D. L. Mercera, J. G. Van Ommen, E. B. M. Doesburg, A. J. Burggraaf andJ. R. H. Ross,Appl. Catal. 57 (1990) 127.Google Scholar
  15. 15.
    R. F. Fedors,Powder Technol. 22 (1979) 71.Google Scholar
  16. 16.
    J. D. F. Ramsay,ibid. 4 (1972) 29.Google Scholar
  17. 17.
    J. C. Fartnas, R. Moreno, J. Requena andJ. S. Moya,Materials Science and Engineering A109 (1989) 97.Google Scholar
  18. 18.
    G. S. A. M. Theunissen, A. J. A. Winnubst, W. F. M. Groot Zevert andA. J. Burggraaf,J. Amer. Ceram. Soc. submitted.Google Scholar

Copyright information

© Chapman and Hall Ltd 1990

Authors and Affiliations

  • W. F. M. Groot Zevert
    • 1
  • A. J. A. Winnubst
    • 1
  • G. S. A. M. Theunissen
    • 1
  • A. J. Burggraaf
    • 1
  1. 1.Faculty of Chemical Technology, Laboratory for Inorganic Chemistry, Materials Science and CatalysisUniversity of TwenteAE EnschedeThe Netherlands

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