Reinforcement Tensile strength 9 Fibers 7 Scanning electron microscopy 5 Wear of materials 5 Bending strength 4 Cements 4 Fabrication 4 Hybrid composites 4 Mechanical properties 4 Metallic matrix composites 4 Physical properties 4 Water absorption 4 Carbon nanotubes 3 Epoxy resins 3 Friction 3 Glass fibers 3 Laminated composites 3 Mechanical performance 3 Nanocomposites 3 Palm oil 3 Powder metallurgy 3 Reinforced glass 3 Reinforced plastics 3 Tribology 3 reinforcement 3 3D printers 2 Analytical models 2 Axial compression 2 Bagasse 2