Strengthening Mechanisms of Aluminum Matrix Nanocomposites Reinforced with CNTs Produced by Powder Metallurgy

The present work aims to investigate the strengthening mechanisms in aluminum matrix nanocomposites reinforced by carbon nanotubes (CNTs). A classical powder metallurgy route produced Al-CNT using ultrasonication and ball milling as dispersion/mixture techniques. microstructural characterization is crucial for this study reach objective, being performed mainly electron backscattered diffraction (EBSD), transmission microscopy (TEM), high-resolution TEM (HRTEM). Uniform dispersion without damaging CNTs structure key nanocomposite production process. reinforcement effect occurs due several that act simultaneously. For a technique, observed improvement mechanical properties of can be attributed load transfer from CNTs. strain hardening second-phase also have small contribution nanocomposites.