The Effect of MgO & TiO2 on Wear Behavior of Composite Material

Abstract

Due to their exceptional hardness and capacity to withstand wear, aluminum metal matrix
nanocomposites have garnered significant interest for use in aerospace, automotive, and
marine applications. This work used powder metallurgy to create a metal matrix
nanocomposite made of titanium dioxide (TiO2) and magnesium oxide (MgO) nanofillers of
ceramics with an aluminum (Al) matrix. Brinell hardness, optical microscopy, X-ray
diffraction (XRD), field emission scanning electron microscopy (FESEM), and interfacial
region were used to assess the importance of controlling the nanofiller surface for improving
mechanical properties as well as the role of surface modifications and microstructure
properties. It was found that the hardness and wear resistance of the nanocomposite are
improved by the interface interaction between the nanofillers and the aluminum matrix. The
wear test was performed by varying the applied stresses as