A novel approach of fabricating monodispersed spherical MoSiBTiC particles for additive manufacturing

Abstract It is very challenging to fabricate spherical refractory material powders for additive manufacturing (AM) because of their high melting points and complex compositions. In this study, a novel technique, freeze-dry pulsated orifice ejection method (FD-POEM), was developed MoSiBTiC particles without process. Elemental nanopowders were dispersed in water prepare high-concentration slurry, which subsequently extruded from an by diaphragm vibration frozen instantly liquid nitrogen. After freeze-drying process, composite with arbitrary composition ratios obtained. The FD-POEM had narrow size range uniform elemental distribution. Mesh structures formed within the particles, attributed sublimation ice crystals. Furthermore, owing morphology, low avalanche angle 42.6°, exhibiting good flowability. Consequently, combination has great potential developing components used industrial applications.