The microstructure and magnetic properties of rapidly solidified in Cu43.2Ag32.0La4.8Fe20 (at.%) alloy, which was designed as the combination of Cu-Ag-based Cu54Ag40La6 alloy with high glass forming ability and Fe, was investigated. The composite of an amorphous phase and crystalline phases was obtained in melt-spun ribbons. The spherical Fe globules, which was surrounded by Cu-rich crystalline phases, were embedded in Cu-Ag-La based amorphous matrix. The particular structure in melt-spun ribbons can be explained by the liquid phase separation and the crystallization of the separated Fe-rich liquid globules during the cooling of the thermal melt. The melt-spun ribbon shows the typical ferromagnetic magnetic properties due to the ten nano-meter ordered bcc-Fe based globules.
|Number of pages
|Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
|Published - 2018