| http://www.w3.org/ns/prov#value | - arium or lead; ceramics such as aluminum oxide, boron nitride, silicon carbide, and sapphire; metals; semiconductors such as silicon, gallium arsenide, indium phosphide, and germanium; and various polymers such as polycarbonates, polyethylene terephthalate, polystyrene, polyimides, and acrylates including polymethylacrylate are just a few examples of the materials that may be utilized.
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