metallisulam, mille metalliline maatriks on kõvendatud/tugevdatud keemiliselt stabiilse submikroonse mittemetallilise faasi sisseviimise teel (vt dispersioontugevdus; vrd sadestustugevdatud sulam), a metallic material strengthened/hardened by incorporating chemically stable submicron size particles of a nonmetallic phase to metallic matrix (see also: dispersion strengthening; compare: prepicitation strengthened alloy)