Manufacturing process of nanostructured deposition coatings

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Nanostructured porous surface layers and coatings have very promising applications e.g. as gas sensor as well as in catalysis and optoelectronic devices. Guidelines for controlled and reproducible process conditions need to be derived for bringing the basic technology of nanoparticle production into successful manufacturing processes. Especially the very promising new development of in situ gas phase mixing of multiple flame sprays is only poorly understood. The successful prediction of spray flame mixing with respect to species and temperature can create an efficient processing tool for defined nano-interfaces such as heterojunctions for many types of electron transports / storage issues (e.g. water splitting, solar cells). The main aim of the project is the determination of the suitable process conditions for controlled manufacturing of nanostructured coatings and layers on specimen by employing the flame spray pyrolysis process with subsequent nanoparticle deposition. Experimental data acquisition (Uni Bremen) for the development and validation of numerical models (Uni Blumenau) is employed to represent the nanoparticle production and deposition processes aiming for process tailoring and scale-up studies. In situ experimental process monitoring of flame and spray key parameters will be based on laser diagnostic measurements.The main objectives of the project ManuNanoDep within the BRAGECRIM framework may be summarized as:- Derivation of suitable process conditions for manufacturing of tailored nanostructured coatings.- Development of suitable in situ diagnostic techniques for process monitoring (process metrology).- Development of combined integral process models for description and scaling of nanostructured deposition manufacturing.