| http://www.w3.org/ns/prov#value | - Thus, the chemical composition of the second material need not be limited to metallic materials (e.g., metal and alloys), but the particles may include non-metallic compounds, such as ceramics, for example, oxides (e.g., aluminum oxide), carbides (e.g., silicon carbide), and nitrides (e.g., titanium nitrides), as further illustrated by the exemplary materials listed above.
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