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