“…Analysis of the literature shows that diverse nanoreinforcements were used to prepare alumina hybrid nanocomposite materials. This includes Al 2 O 3 -SiC-CNTs [32,40,41,43,133], Alumina-GNPs-SiC [39,134], Alumina-Graphene-CNTs [53,135], Alumina-modified multilayer graphene nanoplatelets [136], Al 2 O 3 –ZrO 2 -Graphene [137], Al 2 O 3 -SiCw-TiC [54,55], Al 2 O 3 -TiC-Ni [56], Al 2 O 3 -CNFs-SiC [57], and Alumina-Graphene based nanocomposites [58,59]. The majority of the performed studies were dedicated to the evaluation of mechanical properties and few researchers considered the tribological [54], electrical [40,54,58,59,60], and thermal properties [40,60].…”