The structure and properties of nanoparticles produced by electrospark treatment of aluminum pellets

Abstract

The results of research of structure and properties of the nanoparticles, which received by electrospark treatment of aluminum alloy in an organic liquid are shown. Aluminum and aluminum carbide (Al₃C₄) nanoparticles have average length, respectively, 36,6 and 13,1 nm, width 35 and 10,3 nm, the shape factor 1,05 and 1,3. It is found that of aluminum The oxygen and carbon absorb on the surface of nanoparticles during their the preparation and storage. It has been determined that the surface of the aluminum nanoparticles coated by non-uniform Al₂O₃ film. There are areas with a dense surface and a porous Al₂O₃ film, as well as areas where there is no Al₂O₃ film. The regularities of phase transformations in nanoparticles containing aluminum are determined and their difference is shown in comparison with the massive aluminum.