Results of a study of the characteristics of ZrO2 powders stabilized by 3 mol% Y2O3 and fabricated by the method of ultrasound spray pyrolysis from aerosols of aqueous solutions of mineral salts are presented. Unlike powders of the same composition obtained by the conventional coprecipitation technique, aerosol powders have coarser particles with a narrower size distribution and do not contain agglomerates. The temperature of sintering coarse aerosol powders to a maximum density is not high (1450°C). Despite the larger grain size in ceramics sintered from aerosol powders, their strength is much higher than that of ceramics obtained from ultradisperse coprecipitated powders of a similar composition.
Refractories and Industrial Ceramics – Springer Journals
Published: Nov 27, 2007
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