Advertisement

Journal of Materials Science

, Volume 44, Issue 7, pp 1851–1857 | Cite as

Electrophoretic deposition of ZrO2–Y2O3: a bi-component study concerning self-assemblies

  • Ricardo H. R. CastroEmail author
  • Paulo K. Kodama
  • Douglas Gouvêa
  • R. Muccillo
Article

Abstract

There are many industrial advantages of using mechanical multi-oxides mixtures to obtain ceramic parts by electrophoretic deposition (EPD). This is mainly because one could avoid complex chemical synthesis routes to achieve a desirable composition. However, EPD of these suspensions is not an easy task as well since many different surfaces are present, leading to unexpected suspension behavior. The particles surface potentials and interactions can, however, be predicted by an extension of the DLVO theory. Using this theory, one can control the suspension properties and particles distribution. The objective of this work was to apply the colloidal chemistry theories to promote the formation of a heterocoagulation between ZrO2 and Y2O3 particles in ethanol suspension to achieve a suitable condition for EPD. After identifying a condition where those particles had opposite surface charges and adequate relative sizes, heterocoagulation was observed at operational pH 7.5, generating an organized agglomerate with ZrO2 particles surrounding Y2O3, with a net zeta potential of −16.6 mV. Since the agglomerates were stable, EPD could be carried out and homogeneous deposits were obtained. The deposited bodies were sintered at 1600 °C for 4 h and partially stabilized ZrO2 could be obtained without traces of Y2O3 second phases.

Keywords

Y2O3 Solid Loading Electrophoretic Deposition Total Potential Hamaker Constant 

Notes

Acknowledgements

The authors wish to thank FAPESP (Fundação de Amparo à Pesquisa do Estado de São Paulo) Procs. 05/53241-9 and 05/55335-0, and CAPES (Coordenação do Aperfeiçoamento de Pessoal de Nível Superior) for the financial support.

References

  1. 1.
    Besra L, Liu M (2007) Prog Mater Sci 52:1CrossRefGoogle Scholar
  2. 2.
    Hogg R, Healy TW, Fuerstenau DW (1966) Trans Faraday Soc 62:1638CrossRefGoogle Scholar
  3. 3.
    Derjaguin BV (1954) Discuss Faraday Soc 18:60Google Scholar
  4. 4.
    Wang G, Nicholson PS (2001) J Am Ceram Soc 84:1250CrossRefGoogle Scholar
  5. 5.
    Bleier A, Westmoreland G (1991) J Am Ceram Soc 74:3100CrossRefGoogle Scholar
  6. 6.
    Mitchell TK, Nguyen AV, Evans GM (2005) Adv Colloid Interface Sci 114–115:227CrossRefGoogle Scholar
  7. 7.
    Boccaccini AR, Trusty PA, Tanplin DMR, Ponton CB (1996) J Eur Ceram Soc 16:1319CrossRefGoogle Scholar
  8. 8.
    Castro RHR, Marcos PJB, Gouvea D (2007) J Mater Sci 42:6946. doi: https://doi.org/10.1007/s10853-006-1279-x CrossRefGoogle Scholar
  9. 9.
    Jia L, Lu Z, Huang X, Liu Zy, Chen K, Sha X, Li G, Su W (2006) J Alloys Compd 424:299CrossRefGoogle Scholar
  10. 10.
    Negishi H, Yamaji K, Sakai N, Horita T, Yanagishita H, Yokokawa H (2004) J Mater Sci 39:833. doi: https://doi.org/10.1023/B:JMSC.0000012911.86185.13 CrossRefGoogle Scholar
  11. 11.
    Boccaccini AR, Zhitomirsky I (2002) Curr Opin Solid State Mater Sci 6:251CrossRefGoogle Scholar
  12. 12.
    Negishi H, Yamaji K, Imura T, Kitamoto D, Ikegami T, Yanagishita H (2005) J Electrochem Soc 152:J16CrossRefGoogle Scholar
  13. 13.
    Chen FL, Liu ML (2001) J Eur Ceram Soc 21:127CrossRefGoogle Scholar
  14. 14.
    Wang G, Sarkar P, Nicholson PS (1997) J Am Ceram Soc 80:965CrossRefGoogle Scholar
  15. 15.
    Bohmer MR, Heesterbeek WHA, Deratani A, Renard E (1995) Colloids Surf A 99:53CrossRefGoogle Scholar
  16. 16.
    Cao G (2004) Nanostructures and nanomaterials: synthesis, properties, and applications. Imperial College Press, DanversCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Ricardo H. R. Castro
    • 1
    Email author
  • Paulo K. Kodama
    • 1
  • Douglas Gouvêa
    • 2
  • R. Muccillo
    • 3
  1. 1.CDMat – Department of Materials EngineeringFEI University CenterSão Bernardo do CampoBrazil
  2. 2.Department of Metallurgical and Materials Engineering, Escola PolitécnicaUniversity of São PauloSão PauloBrazil
  3. 3.Centro Multidisciplinar para o Desenvolvimento de Materiais Cerâmicos – CCTM – Instituto de Pesquisas Energéticas e NuclearesPinheiros, São PauloBrazil

Personalised recommendations