Morphology of aluminium oxide nanostructures after calcination of arc discharge Al-C soot

The morphology of nanostructures that were formed during the calcination of aluminium-carbon composite and synthesized by the method of electric arc spraying was studied. It was shown that based on the aluminium content in the sprayed electrode and the buffer gas pressure, nanostructures of different morphologies are formed: chains of γAl2O3 nanoparticles, hollow γAl2O3 nanoparticles, γAl2O3 nanotubes, and hollow nanoparticles with inner partitions.