Preparation of Aluminum–Carbon Nanotubes Composite Material by Hot Pressing

Abstract

A hot pressing method is developed for aluminum powder with preliminary sample and die heating to 600°C. The effect of modifying aluminum with carbon nanotubes in an amount of 0.01–1 wt.% is studied. The microstructure, phase composition, and mechanical and electrical properties of the specimens obtained are determined. It is established that the best uniformity and mechanical strength applies to aluminum specimens containing small additions of nanotubes, i.e., 0.01–0.05 wt.%. An increase in carbon nanotube content above 0.1 wt.% is a reason for the occurrence of inhomogeneity formed as a result of nanotube conglomerates.