Preparation of Mono-sized ZrO 2 Particles by Freeze-dry Pulsated Orifice Ejection Method

Preparation of composite powders with uniform dispersion, high sphericity, suitable particle size and distribution is a great concern in fabricating high-performance components via additive manufacturing. Herein, we developed novel technology, namely freeze-dry pulsated orifice ejection method（FD-POEM）, to prepare monodispersed spherical particles. Taking ZrO 2 nano-powders as an example, high-concentration slurries homogeneous dispersion were prepared. The influence slurry concentrations or dispersant types on the behavior properties FD-POEM particles was thoro ughly investigated. This work demonstrates potential promising method fabricate powders.