Metals Fe,Al,Ni,Ti,Cu,etc Strong,stiff,dense,tough Co/WC Kevlar/Al Ceramics Polymer C,Al,O,SiC +Carbon/resin← Epoxy resin,PP,PU, Hard,stiff,light, etc high melting sic/C Composites Easily formed,soft, light SiO2/AI Car tyre Glass reinforced Car tyre polyester Glass Toughened Rubber Inorganic Polystyrene Elastomers Hard,stiff,transparent High extensionsMetals Fe, Al, Ni, Ti, Cu, etc Strong, stiff, dense, tough Rubber Elastomers High extensions Polymer Epoxy resin, PP, PU, etc Easily formed, soft, light Ceramics C, Al2O3 , SiC Hard, stiff, light, high melting Glass Inorganic Hard, stiff, transparent Composites Co/WC Kevlar/Al Carbon/resin SiO2 /Al Car tyre Toughened Polystyrene Glass reinforced polyester Car tyre SiC/C