Theoretical simulations of preparation of nanometal Particles by Flow-levitation Method

This paper describes the principle of flow-levitation method. An analytical model for preparation of nanometal powders in inert gases is presented. Associated with the relation between dynamics of gas flow and temperature, the process of thermal diffusion, nucleation, condensation and crystallization of powders is studied. The results of theoretical analysis are in agreement with the practice. It indicates that we can control the particle-size distribution by choosing appropriate characteristic technological parameters.