A component that is reflective for broadcast-frequency energy includes a nonmetallic
substrate having a substrate surface, and a layered coating overlying and contacting
the substrate. The layered coating has an electrically conductive layer overlying
and contacting the substrate surface, and a layer of a white paint overlying and
contacting the electrically conductive layer. The white paint is formed of a plurality
of particles including a plurality of pigment particles. Each pigment particle
has a composition of A[xAl(1-;x)Ga]2O4(D), A is selected
from the group consisting of zinc, cadmium, and magnesium, D is a dopant selected
from the group consisting of a cationic dopant having an ionic valence greater
than +2 and an anionic dopant, the value of x is from 0 to 1, and the value of
is from 0 to about 0.2. The paint further includes an inorganic or an organic
binder mixed with the particles to form a mixture.
