Melt atomization particle size distribution

The relative velocity between the liquid and the gas is considered to be one of the most important factors that affect the liquid breakup process during gas atomization. For a given gas nozzle design, particle size is controlled by the atomizing media pressure and melt flow rate. The droplet size distribution for various gas-atomized alloys has been reported generally to foUow a lognormal distribution [13-17]. Two numbers d o, median mass diameter, and ffg, geometric standard deviation, are usually used to describe the entire size distribution. The mass probability density function, p(d), of the droplet-size distribution can be expressed by [18-20] ... 

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