| http://www.w3.org/ns/prov#value | - After drying such as at room temperature, the slip cast part is green machined and sintered at a suitable temperature such as around 1500 to 2000??? C., the sintered part is purified in an acid bath, the cleaned part is subjected to impregnation with silicon to fill the porosity (e.g., 15 to 20%) of the part such as by melting powdered silicon and wicking the melted silicon through porous graphite
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