Investigation of the Electrical Properties of AA5052–TiO₂ Composite

Abstract

This work aims to study the role of  nanoparticles added by stir casting to make AA5052/  at concentrations of 0%, 3% and 5%, observing their effect on electrical conductivity and skin effect phenomenon. It was revealed that the AA5052-  composites were prepared successfully which was demonstrated using SEM micrographs. The Tio₂ added to the matrix is ​​considered very pure at 99.9%. The phenomenon of the skin effect appeared on the aluminum matrix, which changes with each added amount of Tio₂, and its occurrence decreases depending on the increase in the amount of frequency. Also, Electrical conductivity results were also obtained for samples of aluminum AA5052, as at each specific concentration ratio of titanium dioxide, the electrical conductivity varied, as the results indicate that the frequency is directly proportional to the conductivity for all samples subject for testing. The three samples were compared with each other, and the highest electrical conductivity was observed in sample AA5052 + 3%  at frequency 5MHz, reaching about 35.9583.  Electrical studies also reported evidence of an improvement in vehicles in comparison with the basic matrix.