To obtain a magnetic core having an improved relative magnetic permeability and an improved withstand voltage property and the like. The magnetic core contains large particles observed as soft magnetic particles having a Heywood diameter of 5 ?m or more and 25 ?m or less and small particles observed as soft magnetic particles having a Heywood diameter of 0.5 ?m or more and 3 ?m or less in a cross section. 1.00?A1?1.50, 1.30?A2?2.50, and A1?A2 are satisfied, in which an average aspect ratio of the large particles is A1 and an average aspect ratio of the small particles is A2.

There is provided a laminate that improves the electromagnetic wave shielding effect in a low frequency region. A laminate includes at least one non-magnetic metal layer and at least one magnetic metal layer, wherein the at least one magnetic metal layer contains an amorphous phase.

A soft magnetic alloy has a main component of Fe. The soft magnetic alloy contains P. A Fe-rich phase and a Fe-poor phase are contained. An average concentration of P in the Fe-poor phase is 1.5 times or larger than an average concentration of P in the soft magnetic alloy by number of atoms.

An Fe-based amorphous alloy ribbon reduced in iron loss, less deformed, and highly productive in a condition of a magnetic flux density of 1.45 T is provided. One aspect of the present disclosure provides an Fe-based amorphous alloy ribbon having first and second surfaces, and is provided with continuous linear laser irradiation marks on at least the first surface. Each linear laser irradiation mark is formed along a direction orthogonal to a casting direction of the Fe-based amorphous alloy ribbon, and has unevenness on its surface. When the unevenness is evaluated in the casting direction, a height difference HL?width WA calculated from the height difference HL between a highest point and a lowest point in a thickness direction of the Fe-based amorphous alloy ribbon and the width WA which is a length of the linear irradiation mark on the first surface is 6.0 to 180 ?m.sup.2.

A Continuous Ultra-Rapid Annealing (CURA) method for producing a nanocrystalline alloy is provided. The method includes placing amorphous ribbons on a first reel, preheating a Cu wheel to a temperature of about 750? K to about 800? K, and unwinding the amorphous ribbons from the first reel to a second reel. The methods include directly contacting the amorphous ribbons between the first reel and the second reel with the Cu wheel for a length of time and under tension to produce the nanocrystalline alloy. The methods include winding the nanocrystalline alloy on the second reel.

The present disclosure provides a method for producing a magnetic component that enables efficient processing of an amorphous soft magnetic material or a nanocrystalline soft magnetic material. The method for producing a magnetic component comprising an amorphous soft magnetic material or nanocrystalline soft magnetic material comprises: a step of preparing a stacked body comprising a plurality of plate-shaped amorphous soft magnetic materials or nanocrystalline soft magnetic materials; a step of heating at least a portion of shearing in the stacked body to a temperature equal to or higher than the crystallization temperature of the soft magnetic materials; and a step of shearing the stacked body at the portion of shearing after the step of heating.

The present invention provides an iron-based metallic glass alloy powder comprising: an iron-based metal element group mainly comprising Fe; a setnimetal element group comprising Si, B, P, and C; a small amount of at least one degree-of-supercooling improvement element group selected from the group consisting of Nb and Mo; and optionally a corrosion resistance modification component, wherein the total amount of the semimetal element group and the total amount of the corrosion resistance modification component are set within predetermined ranges, and the iron-based metallic glass alloy powder has a particle size of 30 m or less.

The detection device comprises a cold finger which performs the thermal connection between a detector and a cooling system. The cold finger comprises at least one side wall at least partially formed by an area made from the amorphous metal alloy. Advantageously, the whole of the cold finger is made from the amorphous metal alloy.

Various embodiments provide apparatus and methods for melting materials and for containing the molten materials within melt zone during melting. Exemplary apparatus may include a vessel configured to receive a material for melting therein; a load induction coil positioned adjacent to the vessel to melt the material therein; and a containment induction coil positioned in line with the load induction coil. The material in the vessel can be heated by operating the load induction coil at a first RF frequency to form a molten material. The containment induction coil can be operated at a second RF frequency to contain the molten material within the load induction coil. Once the desired temperature is achieved and maintained for the molten material, operation of the containment induction coil can be stopped and the molten material can be ejected from the vessel into a mold through an ejection path.

An electromagnetic wave shielding thin film for shielding from electromagnetic waves generated in an electronic part is provided. The electromagnetic wave shielding thin film includes metal plate which has elastic limit of 1% or more, strength of 1000 MPa or more, and a volume fraction of an amorphous phase of 50% or more.