Technology: general issues 39 TJ Mechanical engineering and machinery 26 History of engineering and technology 23 TP Chemical technology 23 Research & information: general 9 History of engineering & technology 7 Reinforcement 7 Sintering 7 Tensile strength 7 Fabrication 6 Mechanical properties 6 Microstructure 6 Scanning electron microscopy 6 Binary alloys 5 Chemistry 5 Deposition 5 FABRICATION 5 Graphene 5 Titanium dioxide 5 Composite materials 4 Copper alloys 4 Environmental science, engineering and technology 4 Hydroxyapatite 4 Injection molding 4 Materials science 4 Membranes 4 Metallic matrix composites 4 Nanocomposites 4 Nanoparticles 4 Silica 4