Abstract: Provided is a powder suitable for a magnetic member capable of suppressing noise in a frequency range of 100 kHz to 20 MHz. The powder for a magnetic member contains a plurality of particles 2. The main part of the particle 2 is made of an alloy. The alloy contains B. The content of B in the alloy is 5.0 mass % or more and 8.0 mass % or less. The alloy may further contain one or more elements selected from the group consisting of Cr, Mn, Co, and Ni. The content of these elements is 0 mass % or more and 25 mass % or less. The balance of the alloy is Fe and unavoidable impurities. The alloy contains an Fe2B phase. The area percentage of the Fe2B phase in the alloy is 20 mass % or more and 80 mass % or less.

Abstract: In order to provide a soft magnetic flaky powder having high electrical resistance and high corrosion resistance, and a magnetic sheet including the same, the present invention provides a soft magnetic flaky powder, including a plurality of soft magnetic flaky particles. Each of the plurality of soft magnetic flaky particles contains an Fe-based alloy flaky particle and a coating layer formed on a surface of the Fe-based alloy flaky particle. The coating layer contains one or two or more components selected from chromic acid and a hydrate thereof, and a metal salt of an inorganic acid and a hydrate thereof. The inorganic acid is selected from sulfuric acid, nitric acid, chromic acid, phosphoric acid, hydrofluoric acid and acetic acid. The metal salt is selected from a Na salt, an Al salt, a Ti salt, a Cr salt, a Ni salt, a Ga salt and a Zr salt. The coating layer has a thickness of 10 nm or more.

Abstract: Provided is a powder suitable for a magnetic member capable of suppressing noise in a frequency range of 100 kHz to 20 MHz. The powder for a magnetic member contains a plurality of particles 2. The main part of the particle 2 is made of an alloy. The alloy contains B. The content of B in the alloy is 5.0 mass % or more and 8.0 mass % or less. The alloy may further contain one or more elements selected from the group consisting of Cr, Mn, Co, and Ni. The content of these elements is 0 mass % or more and 25 mass % or less. The balance of the alloy is Fe and unavoidable impurities. The alloy contains an Fe2B phase. The area percentage of the Fe2B phase in the alloy is 20 mass % or more and 80 mass % or less.

Abstract: In order to provide a magnetic flaky powder that has a high real part magnetic permeability (??) and a high saturation magnetic flux density in addition to a high FR, and a magnetic sheet containing the same, the present invention provides a magnetic flaky powder, containing a plurality of magnetic flaky particles, wherein: each of the plurality of magnetic flaky particles contains, by mass %, C: 0.1% or more and 3.0% or less, Cr: 1.0% or more and less than 10%, Si: 0% or more and 1.5% or less, Mn: 0% or more and 1.5% or less, Ni: 0% or more and 1.5% or less, Co: 0% or more and 10% or less, and the remainder being Fe and unavoidable impurities; the magnetic flaky powder has a saturation magnetic flux density of more than 1.2 T; and the magnetic flaky powder has an average particle diameter D50 of 10 ?m or more and 65 ?m or less.

Abstract: In order to provide a soft magnetic flaky powder having high electrical resistance and high corrosion resistance, and a magnetic sheet including the same, the present invention provides a soft magnetic flaky powder, including a plurality of soft magnetic flaky particles. Each of the plurality of soft magnetic flaky particles contains an Fe-based alloy flaky particle and a coating layer formed on a surface of the Fe-based alloy flaky particle. The coating layer contains one or two or more components selected from chromic acid and a hydrate thereof, and a metal salt of an inorganic acid and a hydrate thereof. The inorganic acid is selected from sulfuric acid, nitric acid, chromic acid, phosphoric acid, hydrofluoric acid and acetic acid. The metal salt is selected from a Na salt, an Al salt, a Ti salt, a Cr salt, a Ni salt, a Ga salt and a Zr salt. The coating layer has a thickness of 10 nm or more.