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AssigneesNEC Tokin Corporation, Tohoku University
InventorsAkiri Urata, Teruhiko Fujiwara, Hiroyuki Matsumoto, Yasunobu Yamada, Akihisa Inoue
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To provide an amorphous soft magnetic alloy having a supercooled liquid region and excellent in amorphous-forming ability and soft magnetic properties, by selecting and optimizing an alloy composition, and to further provide a ribbon, a powder, a high-frequency magnetic core, and a bulk member each using such an amorphous soft magnetic alloy. The amorphous soft magnetic alloy has a composition expressed by a formula of (Fe1-αTMα)100-w-x-y-zPwBxLySiz, wherein unavoidable impurities are contained, TM is at least one selected from Co and Ni, L is at least one selected from the group consisting of Al, V, Cr, Y, Zr, Mo, Nb, Ta, and W, 0≦α0.98, 2≦w≦16 at %, 2≦x≦16 at %, 0<y≦10 at %, and 0≦z≦8 at %).
An amorphous soft magnetic alloy having a composition expressed by a formula of (Fe1-αTMα)100-w-x-y-zPwBxLySiz, wherein unavoidable impurities are contained, TM is at least one selected from Co and Ni, L is at least one selected frown the group consisting of Al, V, Cr, Y Zr, Mo, Nb, Ta, and W. 0≦α≦0.98, 2≦w≦16 at %, 2≦x≦16 at %, 0<y≦10 at %, and 0≦z≦8 at %.
An amorphous soft magnetic alloy having a composition expressed by a formula of (Fe1-αTMα)100-w-x-y-zPwBxLySizTipCqMnrCus, wherein unavoidable impurities are contained, TM is at least one selected from Co and Ni, L is at least one selected from the group consisting of Al, Cr, Zr, Mo, and Nb, 0≦α≦0.3, 2≦w≦18 at %, 2≦x≦5 at %, 0≦y≦10 at %, 0≦z≦4 at %, and p, q, r, and s each represents an addition ratio given that the total mass of Fe, TM, P, B, L, and Si is 100, and are defined as 0≦p≦0.3, 0≦q≦0.5, 0≦r≦2, and 0≦s≦1.
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