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Uniform precipitation of Yttria-Stabilized zirconia

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An experiment on precipitation of zirconia by urea, urotropin, and ammonium hydroxide precipitants is described. The morphological and phase composition of the precipitated powders are investigated. It is shown that a buffer has a positive effect on reducing the agglomeration. The agglomeration factor for the ammonium hydroxide precipitant is reduced from 175 to 40. A powder consisting of “soft” agglomerates having a developed surface and easily disintegrated in milling to a size of < 1 µm is obtained. Individual particles are 0.06–0.08 µm in size.

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Translated from Ogneupory, No. 6, pp. 2–5, June, 1995.

The work has been supported by the Fund for Fundamental Investigations of the Russian Academy of Sciences.

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Podzorova, L.I., Il'icheva, A.A., Mikhailina, N.A. et al. Uniform precipitation of Yttria-Stabilized zirconia. Refractories 36, 163–166 (1995). https://doi.org/10.1007/BF02238653

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  • Precipitation
  • Ammonium
  • Zirconia
  • Urea
  • Hydroxide