Boeing patents spectrally selective coatings

October 6, 2011

Patent No. U.S. 2010304044
Spectrally selective coatings and associated methods for minimising the effects of lighting strikes (discloses a method for reducing structural damage to a substrate resulting from interaction between the substrate and a plasma, the method including the steps of identifying a wavelength at which a spectral radiance of the plasma is at a peak, the wavelength being a function of a temperature of the plasma, preparing a coating capable of imparting to the substrate a threshold electromagnetic reflectivity over a spectral band about the wavelength, and applying the coating to the substrate. In embodiments the coating includes a binder and a plurality of pigment particles, said pigment particles of said plurality including a quarter wave stack including silicon dioxide and titanium dioxide).