Abstract
Results of an electron microscopic and x-ray diffraction study and data on dispersivity (obtained using a microanalyzer) and density (obtained using a helium pycnometer) of powders in the ZrO2 – Al2O3 system containing 93.54 – 100 wt.% ZrO2 are presented. The powders are prepared by a chemical co-precipitation method. Crystalline and morphological structural features of powder particles are considered and compared to those of powder particles of close composition obtained by a plasma-assisted chemical method. Effects of morphology and structure of the particles on the processability of powders are discussed.
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REFERENCES
Yu. N. Vil'k, L. D. Fedorovich, E. D. Mnatsakanyan, et al., “On the dispersivity of industrial powders Al2O3 and tin and its variation under hot-compaction conditions,” in: Physical Chemistry of Ultra-Disperse Systems [in Russian], Nauka, Moscow (1987), pp. 161-164.
Yu. N. Vil'k, L. D. Fedorovich, and G. M. Klimashin, “Fine effects and grain growth kinetics in the Al2O3–TiN system under hot-compaction conditions,” Ogneupory, No. 3, 15-18 (1988).
Yu. N. Vil'k, “Dispersivity and phase composition of ZrO2-containing ultradisperse powders,” Ogneup. Tekh. Keram., No. 7, 22-25 (1998).
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Vil'k, Y.N. Dispersivity and Phase Composition of Zirconia-Based Powders. Refractories and Industrial Ceramics 42, 280–284 (2001). https://doi.org/10.1023/A:1012766412374
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DOI: https://doi.org/10.1023/A:1012766412374