The change law of D50 with the variations of grinding time of the agitation mill was studied and the contamination level of yttrium-stabilized zirconia balls on quartz micropowders was investigated.

Preparation of spherical zirconia by the wet chemical method;

Preparation of spherical zirconia and Ni-coated zirconia composite powders;

Through the research on the application of hollow sphere-shaped zirconium oxide powder in aero-engine field, hollow sphere-shaped zirconium oxide powder turns out to has higher deposit efficiency, less coating void, better powder liquidity and high-temperature thermal-resistant effect, besides stronger oxidation-resistant ability of bonder course compared with multi-edged zirconium oxide powder.