Dispersivity and Phase Composition of Zirconia-Based Powders

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.