Abstract
In this paper aluminum nano-powder was produced by evaporation and condensation in a low pressure argon gas atmosphere. The process was modified according to the argon pressure to decrease the aluminum nano-particle size. Therefore, the argon gas pressure was changed from 0.1 to 1 mbar by change of injection flow rate, while other parameters were maintained constant. To evaluate the morphology of produced nano-powders at each argon pressure, the nano-powders were analyzed by Brunauer- Emmett- Teller (BET) method and transmission electron microscopy (TEM). It was found that the final particle diameter decreased with argon pressure. This decrease of particle size reaches a minimum of 85 nm, which corresponds to the pressure of 1 mbar. This powder had a specific surface area of 26.22 m2g-1.
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More From: International Journal of Modern Physics: Conference Series
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