Soft magnetic alloy, soft magnetic alloy ribbon, method of manufacturing soft magnetic alloy ribbon, magnetic core, and component
AssigneeProterial, Ltd.
InventorsYuichi Ogawa, Naoki Itoh, Takahiro Shiratake, Motoki Ohta
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Abstract
The soft magnetic alloy of the present disclosure is represented by a composition formula of FeaSibBcCudMe where M is at least one type of element selected from a group consisting of Nb, Mo, V, Zr, Hf, and W, and the formula satisfies 82.5≤a≤86, 0.3≤b≤3, 12.5≤c≤15.0, 0.05≤d≤0.9, and 0≤e<0.4 in at %. The soft magnetic alloy includes a structure that has a crystal grain with a grain diameter of 60 nm or less in an amorphous phase.
Claims10
A soft magnetic alloy ribbon including an alloy represented by a composition formula of FeaSibBcCudMe, M being at least one type of element selected from a group consisting of Nb, Mo, V, Zr, Hf, and W, and the formula satisfying 82.5≤a≤86, 0.3≤b≤3, 12.5≤c≤15.0, 0.05≤d≤0.9, and 0≤e<0.4 in at %, the soft magnetic alloy ribbon comprising:
- a structure that has a crystal grain with a grain diameter of 60 nm or less in an amorphous phase,
- wherein a saturation magnetic flux density of the soft magnetic alloy ribbon is 1.75 T or more,
- wherein an iron loss of the soft magnetic alloy ribbon at 1 kHz and at 1 T is 25 W/kg or less, and
- wherein a lamination factor of the soft magnetic alloy ribbon is 86% or more.
Dependencies are inferred from the claim text.