2 - Generation of metal nanoparticles using reactive plasma arc evaporation

Abstract

The plasma heating methods are technique to obtain nanoparticles by metal plasma evaporation. The reactive plasma arc evaporation method is one of plasma heating methods. In the reactive plasma arc evaporation method can be conducted under atmospheric pressure of diatomic molecular gas such as nitrogen and hydrogen. The nanoparticle generation mechanism under H2 gas atmosphere involves dissociation of diatomic molecular gases to single atoms in the arc plasma, and then dissolving of these atoms in the molten metal. The chapter describes the metal nanoparticle generation with the reactive plasma arc evaporation method. The reactive plasma arc evaporation method can produce larger amount of metal nanoparticles with high quality, therefore it is suitable for industrial manufacturing.