Tohoku University Technology: Slurry and spherical particle production method: T20-505

Production of small size and dense spherical particle by cancelling slurry precipitation Possible to apply to MoSiBTiC alloy particle

Particles with a uniform size of few 10 to 100 ㎛ are expected to be used as raw material for additive manufacturing (3D printer). The Pulsated Orifice Ejection Method (POEM) and the freeze-dry POEM (FD-POEM) developed by the inventor are used for their production. From the point of view of composition control and spheronization by surface tension, the raw material is preferable to be in slurry form. However, the precipitation in a short time and consequently high particle concentration cannot be achieved.　 　This invention makes possible to disperse particle for a relatively long time at a high concentration and to produce small & dense spherical particle than the conventional one using FD-POEM. Moreover, this invention can be applied to particle production of MoSiBTiC alloy, which is an ultra-high temperature material.

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