Abstract：A wire electrical explosion device for preparing metal powder production was designed. By changing the initial voltage and wire diameter, the electrical explosion experiment of the tantalum micron powders carried out. The prepared tantalum micron powders was characterized. The results show that density of energy deposition per unit volume of the metal wire can be improved by increasing initial voltage, the average particle size of tantalum micron powders can be reduced, the particle size distribution becomes narrow. When the voltage increases to a certain degree, the particle size distribution becomes wide. the average particle size of the powder is in a relative stable value. The average particle sizes of the prepared tantalum micron powders are 15 μm.
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2020, Vol. 27 