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Radu-Robert PITICESCU; Thermal assessment of nanostructured inorganic coatings by differential scanning calorimetry; Advanced NanoMaterials and Technologies for Energy Sector; 2018:2(1): 188-195
Development of nanostructured coatings play a crucial role in surface engineering for energy harvesting applications. Thermal characterization methods are one of the most accessible tools to study, model and predict the process parameters required to control nanostructure development during thermal treatment of different novel multi-material coating systems. Differential scanning calorimetry (DSC) is often used as a standard method to put in evidence different thermal events associated with different processes occurring in the coating materials during nucleation and growth as well as at the substrate/coating interfaces. Thermal analysis of inorganic and hybrid coatings is an essential tool for the validation of the new developed coating processes, allowing to study the reaction chemistry associated with the elimination of solvent compounds, nucleation and crystallization form solution to obtain the desired nanostructures and properties. Once the chemistry of the coating process is established, thermal stability of the coating in the temperature range required for a specific application may be assessed to obtain the desired crystalline phases and avoiding any other subsequent processes producing decomposition, internal stress and delamination of the film. The present paper is a first attempt to show some examples on how thermal analysis methods may be used to assess the thermal behaviour of novel inorganic coatings for developing novel energy harvesting systems.