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Refractories and Industrial Ceramics

, Volume 52, Issue 3, pp 178–181 | Cite as

Sintering of nanostructured powders

  • A. V. Galakhov
  • L. V. Vinogradov
  • B. I. Antipov
  • A. G. Kolmakov
Scientific Research and Development
  • 45 Downloads

Results are provided for a study of the internal structure of submicron spherical particles in ZrO2–Y2O3 aerosol powders synthesized by ultrasonic atomization pyrolysis. It is shown the sintering potential for these powders is determined mainly by their internal nanostructural parameters, and not the degree of starting powder fineness. It is detected that the activity of submicron nanostructured powders is commensurate with the activity of ultrafine powders. In contrast to the latter, these powders consist of individual particles not joined in stable multiparticle formations, i.e., agglomerates. This simplifies considerably their practical application without loss of quality for the material obtained.

Keywords

nanopowders spherical particles agglomerates coherent scattering range (CSR) particle size distribution intergranular boundaries 

References

  1. 1.
    A. V. Galakhov, “Features of sintering aerosol powders,” Ogneupory Tekhn. Keram., No.1/2,29–33 (1999).Google Scholar
  2. 2.
    A. V. Galakhov, “Agglomerates in nanopowders and ceramic technology,” Refr. Ind. Ceram., 50, No. 5, 348 – 353 (2009).CrossRefGoogle Scholar
  3. 3.
    V. N. Selivanov and E. F. Smyslov, “x-ray structural analysis of polycrystal dislocation structure with respect to microstrain distribution,” Zavod. Lab., 60, No. 2, 31 – 36 (1996).Google Scholar
  4. 4.
    Ya. E. Geguzin, Physics of Sintering [in Russian], Nauka, Moscow (1984).Google Scholar

Copyright information

© Springer Science+Business Media, Inc. 2011

Authors and Affiliations

  • A. V. Galakhov
    • 1
  • L. V. Vinogradov
    • 1
  • B. I. Antipov
    • 1
  • A. G. Kolmakov
    • 1
  1. 1.A. A. Baikov Institute of Metallurgy and Materials ScienceRussian Academy of SciencesMoscowRussia

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