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| Sub-fields of materials science | Definitions |
| 1. Nanotechnology | a) the study of the way by which atoms in a solid fill space, the defects associated with crystal structures such as grain boundaries and dislocations, and the characterization of these structures and their relation to physical properties |
| 2. Microtechnology | b) materials that are derived from and/or used with biological systems |
| 3. Crystallography | c) materials such as semiconductors used to create integrated circuits, storage media, sensors, and other devices |
| 4. Metallurgy | d) interactions and structures between solid-gas solid-liquid or solid-solid interfaces. |
| 5. Biomaterials | e) the study of materials and processes and their interaction, allowing microfabrication of structures of micrometric dimensions, such as MicroElectroMechanical Systems (MEMS). |
| 6. Electronic and magnetic materials | f) the study of the microstructures of high-temperature materials and refractories, including structural ceramics such as RCC, polycrystalline silicon carbide and transformation toughened ceramics |
| 7. Tribology | g) the study of metals and their alloys, including their extraction, microstructure and processing |
| 8) Surface science/Catalysis | h) the study of the wear of materials due to friction and other factors. |
| 9) Ceramography | i)it is the creation and the study of materials whose structural properties are defined by their dimensions being less one hundred nanometers |
SPEAKING
15Discuss in pairs the main points of technical description of a (chemical) product.
16 Search for technical descriptions of H2SO4 and HCl in Appendix. Why are these points important to mention in technical description?
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