PROCESSING AND MECHANICAL EVALUATION OF ALUMINIUM COMPOSITES REINFORCED WITH CARBON NANOTUBES

摘要

This work consists of the development of aluminium silicon composites reinforced with carbon nanotubes. The composites were obtained by powder metallurgy processes. The influence of different volume fraction of carbon nanotubes in metallurgical and mechanical properties was studied. Metallurgical evaluation was made by means of SEM/EDS for interface reaction between matrix and reinforcement and reinforcement distribution in matrix. Mechanical evaluation was made by tensile tests and fatigue tests. The materials were processed through conventional hot pressing powder metallurgy techniques.