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Sn-Bi nanometer powders were produced by an electrohydrodynamic technique. The effects of processing variables on the size of Sn-Bi nanometer powders were studied. Experimental results indicate that with an increase in high voltage and a decrease in diameter of the capillary nozzle, the size of Sn-Bi nanometer powders decreases. In addition, the feed pressure for delivering the molten alloy to the...
Ultrafine silicon powders with a mean particle diameter of 20-200 nm and a mean crystallite diameter of 18-37 nm were synthesized from high purity SiH 4 by laser induced gas phase reactions. the Si powders have been characterized by TEM, XPS, FTIR, XRD and BET techniques, and the effects of processing variables including SiH 4 flow rate, laser power, cell pressure and the Ar/SiH ...
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