Abstract: A soft magnetic powder has a composition represented by Fe100-a-b-c-d-e-f-g-hCuaSibBcMdM?eXfAlgTih (at %) (wherein M is at least one element selected from the group consisting of Nb and the like, M? is at least one element selected from the group consisting of V and the like, X is at least one element selected from the group consisting of C and the like, and a, b, c, d, e, f, g, and h satisfy the following formulae: 0.1?a?3, 0<b?30, 0<c?25, 5?b+c?30, 0.1?d?30, 0?e?10, 0?f?10, 0.002?g?0.032, and 0?h?0.038), wherein a crystalline structure having a particle diameter of 1 to 30 nm is contained in an amount of 40 vol % or more.

Abstract: A soft magnetic powder contains a particle having a composition represented by FexCuaNbb(S1-yBy)100-x-a-b, a, b, and x being numbers whose units are atomic %, in which 0.3?a?2.0, 2.0?b?4.0, and 73.0?x?79.5, and y being a number satisfying f(x)?y?0.99, and f(x)=(4×10?34)x17.56. When an XPS spectrum of the particle is obtained, and fitting processing is performed on an O1s peak, the O1s peak is separated into a first element peak of 532 eV or less and a second element peak of more than 532 eV, and S2/S1 is 1.5 or more where S1 is an area of the first element peak and S2 is an area of the second element peak.

Abstract: A soft magnetic powder of the invention has a composition represented by Fe100-a-b-c-d-e-fCuaSibBcMdM?eXf (at %) [wherein M is Nb, W, Ta, Zr, Hf, Ti, or Mo, M? is V, Cr, Mn, Al, a platinum group element, Sc, Y, Au, Zn, Sn, or Re, X is C, P, Ge, Ga, Sb, In, Be, or As, and a, b, c, d, e, and f are numbers that satisfy the following formulae: 0.1?a?3, 0<b?30, 0<c?25, 5?b+c?30, 0.1?d?30, 0?e?10, and 0?f?10], wherein a crystalline structure having a particle diameter of 1 nm or more and 30 nm or less is contained in an amount of 40 vol % or more, and the difference in the coercive force of the powder after classification satisfies predetermined conditions.

Abstract: A soft magnetic powder has a composition represented by Fe100-a-b-c-d-e-f-g-hCuaSibBcMdM?eXfAlgTih (at %) (wherein M is at least one element selected from the group consisting of Nb and the like, M? is at least one element selected from the group consisting of V and the like, X is at least one element selected from the group consisting of C and the like, and a, b, c, d, e, f, g, and h satisfy the following formulae: 0.1?a?3, 0<b?30, 0<c?25, 5?b+c?30, 0.1?d?30, 0?e?10, 0?f?10, 0.002?g?0.032, and 0?h?0.038), wherein a crystalline structure having a particle diameter of 1 to 30 nm is contained in an amount of 40 vol % or more.

Abstract: A soft magnetic powder has a composition represented by Fe100-a-b-c-d-e-fCuaSibBcMdM?eXf (at %) (wherein M is at least one element selected from the group consisting of Nb and the like, M? is at least one element selected from the group consisting of V and the like, X is at least one element selected from the group consisting of C and the like, and 0.1?a?3, 0<b?30, 0<c?25, 5?b+c?30, 0.1?d?30, 0?e?10, and 0?f?10). The powder contains a crystalline structure having a particle diameter of 1 nm or more and 30 nm or less in an amount of 40 vol % or more. When the apparent density is assumed to be 100, the tap density is 103 or more and 130 or less.

Abstract: A soft magnetic powder of the invention has a composition represented by Fe100-a-b-c-d-e-fCuaSibBcMdM?eXf (at %) [wherein M is Nb, W, Ta, Zr, Hf, Ti, or Mo, M? is V, Cr, Mn, Al, a platinum group element, Sc, Y, Au, Zn, Sn, or Re, X is C, P, Ge, Ga, Sb, In, Be, or As, and a, b, c, d, e, and f are numbers that satisfy the following formulae: 0.1?a?3, 0<b?30, 0<c?25, 5?b+c?30, 0.1?d?30, 0?e?10, and 0?f?10], wherein a crystalline structure having a particle diameter of 1 nm or more and 30 nm or less is contained in an amount of 40 vol % or more, and the difference in the coercive force of the powder after classification satisfies predetermined conditions.

Abstract: A soft magnetic powder has a composition represented by FexCuaNbb(Si1-yBy)100-x-a-b-cPc [provided that a, b, c, and x are each a number whose unit is at %, and are numbers satisfying 0.3?a?2.0, 2.0?b?4.0, 0.1?c?4.0, and 72.0?x?79.3, and y is a number satisfying f(x)?y?0.99, in which f(x)=(4×10?34)x17.56+0.07], and contains a crystalline structure having a particle diameter of 1.0 nm or more and 30.0 nm or less at 30 vol % or more.

Abstract: A soft magnetic powder has a composition represented by FexCuaNbb(Si1-yBy) 100-x-a-b-cCc [provided that a, b, c, and x are each a number whose unit is at %, and are numbers satisfying 0.3?a?2.0, 2.0?b?4.0, 0.1?c?4.0, and 72.0?x?79.3, and y is a number satisfying f(x)?y?0.99, in which f(x)=(4×1034)x17.56+0.07], and contains a crystalline structure having a particle diameter of 1.0 nm or more and 30.0 nm or less at 30 vol % or more.

Abstract: A soft magnetic powder has a composition represented by FexCua(Nb1-zZnz)b(Si1-yBy)100-x-a-b [provided that a, b, and x are each a number whose unit is at %, and are numbers satisfying 0.3?a?2.0, 2.0?b?4.0, and 73.0?x?79.5, and y is a number satisfying f(x)?y<0.99, in which f(x)=(4×10?34)x17.56, and z is a number satisfying 0<z?1.0], and contains a crystalline structure having a particle diameter of 1.0 nm or more and 30.0 nm or less at 30 vol % or more.

Abstract: A soft magnetic powder of the invention has a composition represented by Fe100-a-b-c-d-e-fCuaSibBcMdM?eXf (at %) [wherein M is Nb, W, Ta, Zr, Hf, Ti, or Mo, M? is V, Cr, Mn, Al, a platinum group element, Sc, Y, Au, Zn, Sn, or Re, X is C, P, Ge, Ga, Sb, In, Be, or As, and a, b, c, d, e, and f are numbers that satisfy the following formulae: 0.1?a?3, 0<b?30, 0<c?25, 5?b+c?30, 0.1?d?30, 0?e?10, and 0?f?10], wherein a crystalline structure having a particle diameter of 1 nm or more and 30 nm or less is contained in an amount of 40 vol % or more, and the difference in the coercive force of the powder after classification satisfies predetermined conditions.

Abstract: A soft magnetic powder has a composition represented by Fe100-a-b-c-d-e-fCuaSibBcMdM?eXf (at %) (wherein M is at least one element selected from the group consisting of Nb and the like, M? is at least one element selected from the group consisting of V and the like, X is at least one element selected from the group consisting of C and the like, and 0.1?a?3, 0<b?30, 0<c?25, 5?b+c?30, 0.1?d?30, 0?e?10, and 0?f?10). The powder contains a crystalline structure having a particle diameter of 1 nm or more and 30 nm or less in an amount of 40 vol % or more. When the apparent density is assumed to be 100, the tap density is 103 or more and 130 or less.

Abstract: A soft magnetic powder has a composition represented by Fe100-a-b-c-d-e-fCuaSibBcMdM?eXf (at %) (wherein M is Nb, W, Ta, Zr, Hf, Ti, or Mo, M? is V, Cr, Mn, Al, a platinum group element, Sc, Y, Au, Zn, Sn, or Re, X is C, P, Ge, Ga, Sb, In, Be, or As, and a, b, c, d, e, and f are numbers that satisfy the following formulae: 0.1?a?3, 0<b?30, 0<c?25, 5?b+c?30, 0.1?d?30, 0?e?10, and 0?f?10), wherein a crystalline structure having a particle diameter of 1 nm or more and 30 nm or less is contained in an amount of 40 vol % or more, and the Vickers hardness of the particles is 1000 or more and 3000 or less.

Abstract: A soft magnetic powder has a composition represented by Fe100a-b-c-d-e-f-g-hCuaSibBcMdM?eXfAlgTih (at %) (wherein M is at least one element selected from the group consisting of Nb and the like, M? is at least one element selected from the group consisting of V and the like, X is at least one element selected from the group consisting of C and the like, and a, b, c, d, e, f, g, and h satisfy the following formulae: 0.1?a?3, 0<b?30, 0<c?25, 5?b+c?30, 0.1?d?30, 0?e?10, 0?f?10, 0.002?g?0.032, and 0?h?0.038), wherein a crystalline structure having a particle diameter of 1 to 30 nm is contained in an amount of 40 vol % or more.

Abstract: A soft magnetic powder has a composition represented by Fe100-a-b-c-d-e-fCuaSibBcMdM?eXf (at %) (wherein M is at least one element selected from the group consisting of Nb and the like, M? is at least one element selected from the group consisting of V and the like, X is at least one element selected from the group consisting of C and the like, and a, b, c, d, e, and f satisfy the following formulae: 0.1?a?3, 0<b?30, 0<c?25, 5?b+c?30, 0.1?d?30, 0?e?10, and 0?f?10), wherein a crystalline structure having a particle diameter of 1 nm or more and 30 nm or less is contained in an amount of 40 vol % or more, and an oxygen content is between 50 ppm and 700 ppm (mass ratio).

Abstract: A soft magnetic powder of the invention has a composition represented by Fe100-a-b-c-d-e-fCuaSibBcMdM?eXf (at %) [wherein M is Nb, W, Ta, Zr, Hf, Ti, or Mo, M? is V, Cr, Mn, Al, a platinum group element, Sc, Y, Au, Zn, Sn, or Re, X is C, P, Ge, Ga, Sb, In, Be, or As, and a, b, c, d, e, and f are numbers that satisfy the following formulae: 0.1?a?3, 0<b?30, 0<c?25, 5?b+c?30, 0.1?d?30, 0?e?10, and 0?f?10], wherein a crystalline structure having a particle diameter of 1 nm or more and 30 nm or less is contained in an amount of 40 vol % or more, and the difference in the coercive force of the powder after classification satisfies predetermined conditions.

Abstract: A soft magnetic powder has a composition represented by Fe100-a-b-c-d-e-fCuaSibBcMdM?eXf (at %) (wherein M is Nb, W, Ta, Zr, Hf, Ti, or Mo, M? is V, Cr, Mn, Al, a platinum group element, Sc, Y, Au, Zn, Sn, or Re, X is C, P, Ge, Ga, Sb, In, Be, or As, and a, b, c, d, e, and f are numbers that satisfy the following formulae: 0.1?a?3, 0<b?30, 0<c?25, 5?b+c?30, 0.1?d?30, 0?e?10, and 0?f?10), wherein a crystalline structure having a particle diameter of 1 nm or more and 30 nm or less is contained in an amount of 40 vol % or more, and the Vickers hardness of the particles is 1000 or more and 3000 or less.