After successful completion of the course, students are able to identify different production methods for nanoparticles and nanomaterials, identify the problems of compaction of nanoparticles into compact solids and components, and name specific properties.
Synthesis of nano-powders (ceramic, metallic): deposition of particles from gas-phase, hydrothermal synthesis, polyol-process (introduction) Characterization/analytics: SEM, TEM, AFM, STM, health and safety aspects of nano particles From powders to components: ceramic/metallic nano-composites, problems concerning the retention of the nanostructure with increasing temperature (grain growth, grain growth inhibitor, dispersion hardening), carbon nanotube composites, electronic components, coatings (hardmetals, hard disc,), consolidation processes (SPS, ECAP,), characterization techniques, mechanical properties of nano-composites, microsystems technology.
An overview of the generation of nanoparticles, their measurement, their morphology and possible uses will be given. First, the special properties of nano-particle collectives are reported. An example is the production and application of nanodefects in crystals and their technical use as electronic switching units. The practical use of nanoparticles in display technology, medicine, etc. is reported. Furthermore, the following production methods for nanoparticle collectives in the gaseous state are explained: - grinding process - plasma process - gas condensation method - laser ablation process - reduction process The nanoparticle separation from the gaseous state using filtering separators is then discussed. Then the characterization of nano-particle collectives is explained by means of: - electron-optical methods - scanning tunneling microscopy - force microscopy - near-field microscopy - laser diffraction measuring devices - time-of-flight analyzers - mobility analyzers. Finally, the dangers of using nanoparticle collectives are discussed and their implications for environmental systems are discussed.
