Use of an electron accelerator to produce nanopowders by evaporation of initial materials at atmospheric pressure

Abstract

High-purity nanodispersed powders with extraordinary properties that can be used in various technologies (electronics, catalysis, ceramics, modification of composite rheology, and so on) can be produced by evaporation of various initial materials at atmospheric pressure. In particular, the authors succeeded in producing nanodispersed powders of oxides [including silicon dioxide and oxide (SiO ₂ and SiO) and magnesium (MgO), aluminum (Al ₂ O ₃), and cuprous (Cu ₂ O) oxides], metals [including tantalum (Ta), molybdenum (Mo), aluminum (Al), silver (Ag), and some others] in various atmospheres, semiconductors [including silicon (Si)], nitrides [including aluminum (AlN) and titanium (TiN) nitrides], and other materials. It is important for the developed production process that the main component of the setup (an industrial accelerator) is capable of creating high temperatures for evaporation of any refractory materials. The production process has high efficiency and productivity (reaching several kilograms of oxides per hour).