Abstract
The interactions of light with particles are of critical importance to the coatings industry. Understanding these interactions provides the paint formulator with the information needed to develop a cost- and performance-optimized coatings system.
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Notes
- 1.
There is a slight complication here, and that is that the “scattering area” refers to the area of a cross section of the particle whereas “specific surface area” refers to the area of the surface of the particle. For spheres, however, these two are related to one another by a constant factor of 4, and for this reason we include a factor of ¼ in the equation for total scattering area per gram.
- 2.
Rutile is far from unique in this regard, and a dependence of refractive index on wavelength is the rule rather than the exception. Familiar examples of this are water droplets and glass prisms, both of which disperse white light into the spectrum of its colored components based on slight differences in the refractive indices of these materials for different wavelengths of light.
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© 2014 E. I. du Pont de Nemours and Company
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Diebold, M. (2014). Scattering by a Single Particle. In: Application of Light Scattering to Coatings. Springer, Cham. https://doi.org/10.1007/978-3-319-12015-7_1
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DOI: https://doi.org/10.1007/978-3-319-12015-7_1
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