| http://www.w3.org/ns/prov#value | - Examples of suitable absorber materials include chromium, nickel, iron, titanium, aluminum, tungsten, molybdenum, niobium, combinations, compounds or alloys thereof, such as INCONEL??? (Ni???Cr???Fe), metals mixed in a dielectric matrix, or other substances that are capable of acting as a uniform or selective absorber in the visible spectrum.
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