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Colour simulation and prediction of complex nano-structured metal oxide films Test Case: Analysis and modeling of electro-coloured anodized aluminium

Publication date 2011
B-Phot Authors Erik Stijns
Citation
I. De Graeve et al., “Colour simulation and prediction of complex nano-structured metal oxide films Test Case: Analysis and modeling of electro-coloured anodized aluminium,” Surf. Coat. Technol, vol. 205, no. 19, pp. 4349–4354, 2011.
Abstract An optical modeling procedure is developed to predict and model the colour of electro-coloured anodized aluminium that has been modified in pore structure for the generation of interference colours. The relation between the multi-layered, nano-sized oxide microstructure and the colour is experimentally determined and translated into an optical model that is able to predict the colour as a function of microstructural variations. The optical modeling procedure is highly sensitive to changes on the nano-scale (porosity, percentage of metal deposition, presence of barrier regrowth...), and has high potential as a predictive tool to relate the microstructure of a surface to the final colour characteristics of the metal, and as such to the used electrolytic processing conditions.
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