Coatings including pigments comprising substrate particles with ultrafine
metal oxide particles deposited on the surfaces thereof and made by a
plasma process are disclosed. The substrate particles may comprise an
oxide such as SiO.sub.2, Al.sub.2O.sub.3, Bi.sub.2O.sub.3 and the like.
The ultrafine metal oxide particles may be partially oxidized such as
Cu.sub.2O, Ti.sub.3O.sub.4 and the like. The pigments may be used in
coating compositions in which the substrate particles substantially match
the refractive index of the coating composition base, and the ultrafine
metal oxide particles provide the desired reflectance characteristics for
the coating.