Optical Reflectance of Metallic Coatings: Effect of Aluminum Flake Orientation
Li Piin Sung, Maria E. Nadal, M E. McKnight, Egon Marx, B Laurenti
The orientation of platelet-like pigments in coatings is affected by the processing conditions resulting in appearance variations of the final product. A set of aluminum-flake pigmented coatings having different flake orientations was pre-pared using various spray conditions. The orientations of individual flakes were determined using laser scanning confocal microscopy. The orientation distribution was then used as input to a ray scattering model to calculate the optical reflectance of these coatings. The pigment orientation distributions and the measured optical reflectance as a function of scattering angle will be presented and the latter will be compared to the calculated reflectance.
, Nadal, M.
, McKnight, M.
, Marx, E.
and Laurenti, B.
Optical Reflectance of Metallic Coatings: Effect of Aluminum Flake Orientation, Journal of Coatings Technology, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=860366
(Accessed December 1, 2023)