| http://www.w3.org/ns/prov#value | - The particulates may be of any shape, including but not limited to, spherical or non-spherical particles or elongated or flattened shapes (e.g., metal or metal-coated spheres, hollow metal or metal-coated spheres, short metal-coated fibers or fabrics, and flakes), regular shapes (e.g., metal crystals), and irregular shapes (e.g., aggregated spheres).
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