Vol. 39, Issue 4, pp. 859-863 (2009)

Abstract

The primary crystallization of Co₇₈Si₉B₁₃ metallic glass starts at 648 K and as a consequence of this the ε-Co(Si) phase with needle morphology is created. The second stage of crystallization (at 773 K) is the eutectic and as a result of this α-Co(Si) and boron phases: (Co,Si)₃B, (Co,Si)₂B are formed. The crystallites of these phases have layer morphology. These characteristic morphologies in the first and second stages lead to the increase in coercivity.