| http://www.w3.org/ns/prov#value | - For ceramics, an example of a precursor material is a mixed oxide with at least two cations, the metal oxide of the first cation being soluble to function as the fugitive constituent, and the oxide of the second being non-soluble to function as the non-soluble constituent For forming, metal nanosize powders, the precursor can exist, for example, as an alloy or an intermetallic compound.
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