| The magnetic properties of amorphous Fe_(80-x)Co_xSi_6B_(14)(10≤X≤70, X ; 10at% interval) and Fe_(80-x)Co_xSi_9B_9P₂(10≤X≤70, X, 15 at% interval) have been investigated. The amorphous alloys were fabricated into ribbons by a single-roller rapid quenching technique. The saturation magnetization and its temperature-dependence, coercive force and power loss were studied. The saturation magnetization of the amorphous Fe_(80-x)Co_xSi_9B_9P₂alloy shows similar tendency to that of amorphous Fe_(80-x)Co_xSi_6B_(14) alloy except Fe-rich composition at room temperature. The average effective magnetic moment per transition metal atom in both alloys is 2.10-141 μ_B, and decreases with Co content, but increases slightly with Co content from X=40. The coercive force and power loss are 0.31-0.11 Oe and 33-49 mW/Kg at 0.5 Tesla and 60 Hz, respectively, and decrease with Co content. |
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