抄録
Numerous techniques have been developed to synthesize powders with improved physical and chemical characteristics, and various production techniques are applied to the powder processing. Thermal plasma is one of the most attractive surface treatments in recent years. The thermal plasma produces a high temperature flame (about 10, 000K) to evaporate raw materials and quench the vapor rapidly outside the plasma flame so that nanoparticles form as a result of high supersaturation. The method has distinctive advantages over the conventional gas phase synthesis methods of nanoparticles. This paper reviews the synthesis of nanoparticles and the spheroidization of powder by radio frequency (RF) thermal plasma method.
