Fabrication and Application of Mono-sized Spherical Micro Particles by Pulsated Orifice Ejection Method

Abstract

A novel technology called pulsated orifice ejection method(POEM) and used for preparing mono-sized and high-precision spherical micro particles was introduced in this article. The working principle of the technique was illustrated and it was in two modes:low-melting point diaphragm mode and high-melting point rod mode, depending on the different melting points of materials. The particles prepared by POEM have the advantages of mono-sized, uniform and controllable particle size, high sphericity, and consistent thermal history. By introducing the application of particles prepared by this method, showing the huge application prospects of this technology in electronic packaging, bioengineering, micro-fabrication, rapid solidification analysis of metal droplets, additive manufacturing and so on.With the development of POEM, this technology is predicted to have wider prospects due to its unique characteristics.

Keywords

• pulsated orifice ejection method
• mono-sized particle
• spherical
• controllable particle size