A consolidated metallic glass structure is formed by fabricating [200] metallic glass nanoparticles with a solution-phase synthesis that provides coated metallic glass nanoparticles with a polymer ligand layer; stripping [202] the polymer ligand layer from the coated metallic glass nanoparticles to provide bare metallic glass nanoparticles; depositing [204] the bare metallic glass nanoparticles on a substrate to provide a deposited structure; and sintering [206] the deposited structure with heat and/or pressure to provide the consolidated metallic glass structure. The metallic glass nanoparticles are preferably composed substantially of nickel and boron, iron and boron, or cobalt and boron.

Provided is a soft magnetic alloy which has high saturation flux density and low coercivity and is represented by the compositional formula (Fe.sub.(1−(α+β))X1.sub.αX2.sub.β).sub.(1−(a+b+c+d+e+f))M.sub.aP.sub.bSi.sub.cCu.sub.dX3.sub.eB.sub.f, wherein X1 is at least one element selected from the group consisting of Co and Ni, X2 is at least one element selected from the group consisting of Ti, V, Mn, Ag, Zn, Al, Sn, As, Sb, Bi, and rare earth elements, X3 is at least one element selected from the group consisting of C and Ge, and M is at least one element selected from the group consisting of Zr, Nb, Hf, Ta, Mo, and W, and wherein 0.030≤a≤0.120, 0.010≤b≤0.150, 0≤c≤0.050, 0≤d≤0.020, 0≤e≤0.100, 0≤f≤0.030, α≥0, β≥0, and 0≤α+β≤0.55.

One embodiment of the present invention provides an Fe-based amorphous alloy ribbon for an Fe-based nanocrystalline alloy, the Fe-based amorphous alloy ribbon being a cooled body of a molten metal that has been applied to a surface of a chill roll, wherein the Fe-based amorphous alloy ribbon includes a recess having a depth of 1 μm or more in a 0.647 mm×0.647 mm region located in a central part, in the ribbon width direction, of a ribbon surface, which is a cooled surface, in which a maximum area of the recess having a depth of 1 μm or more is 3000 μm.sup.2 or less; and a method of manufacturing the same.

A magnetic piece, a multilayer magnetic piece and a multilayer core with an adhesive agent of excellent saturation magnetic flux density are provided. The magnetic piece includes a soft magnetic amorphous alloy ribbon 1 and a resin layer 2 provided on at least one surface of the soft magnetic amorphous alloy ribbon. The resin layer contains a resin whose Shore D hardness is not more than 60. The resin may have a Shore D hardness of not more than 25 or may have a Shore D hardness of not less than 1.

A magnetic piece, a multilayer magnetic piece and a multilayer core with an adhesive agent of excellent saturation magnetic flux density are provided. The magnetic piece includes a soft magnetic amorphous alloy ribbon 1 and a resin layer 2 provided on at least one surface of the soft magnetic amorphous alloy ribbon. The resin layer contains a resin whose Shore D hardness is not more than 60. The resin may have a Shore D hardness of not more than 25 or may have a Shore D hardness of not less than 1.

A metallic glass coating material is composed of an alloy of Fe, B, and one of the metals Nb, Mo, Zr, or W. The ratios of Fe, B, and the metal are predetermined using machine learning predictions and high-throughput experiments. In one example, the material is an alloy of Fe, Nb, Mo and B, of the form Fe.sub.x(Nb, Mo).sub.yB.sub.z, where x is in the range 18-28, y is in the range 35-45, and z is in the range 32-42. In another example, the material may be the alloy Fe.sub.23(Nb, Mo).sub.40B.sub.37. The alloy may be doped with Zr and/or W, where the Zr and/or W comprises at most 10% of the alloy.

A metallic glass coating material is composed of an alloy of Fe, B, and one of the metals Nb, Mo, Zr, or W. The ratios of Fe, B, and the metal are predetermined using machine learning predictions and high-throughput experiments. In one example, the material is an alloy of Fe, Nb, Mo and B, of the form Fe.sub.x(Nb, Mo).sub.yB.sub.z, where x is in the range 18-28, y is in the range 35-45, and z is in the range 32-42. In another example, the material may be the alloy Fe.sub.23(Nb, Mo).sub.40B.sub.37. The alloy may be doped with Zr and/or W, where the Zr and/or W comprises at most 10% of the alloy.

A soft magnetic alloy contains Fe and at least one of metalloid element. An amorphous material and a nanocrystal having a grain size of 5 to 30 nm are mixed. A coefficient of determination between an atomic concentration of Fe and an atomic concentration of the at least one of metalloid element is 0.700 or more.

A soft magnetic alloy contains Fe and at least one of metalloid element. An amorphous material and a nanocrystal having a grain size of 5 to 30 nm are mixed. A coefficient of determination between an atomic concentration of Fe and an atomic concentration of the at least one of metalloid element is 0.700 or more.

An alloy includes: an average Ni concentration of 1.5 at.% or more and 15.5 at.% or less; an average Co concentration of 0 at.% or more and 10.0 at.% or less; an average B concentration of 3.0 at.% or more and 16.0 at.% or less; an average P concentration of 0.5 at.% or more and 10.0 at.% or less; an average Cu concentration of 0 at.% or more and 2.0 at.% or less; an average Si concentration of 0 at.% or more and 6.0 at.% or less; an average C concentration of 0 at.% or more and 6.0 at.% or less; a total of average concentrations of Nb, Mo, Zr, W, V, Hf, Ta, Al, Ti, and Cr of 0 at.% or more and 6.0 at.% or less; and a total of an average Fe concentration, the average Ni concentration, and the average Co concentration of 78.0 at.% or more and 88.0 at.% or less.