(Fe)-NICKEL (Ni) ALLOY POWDER, GREEN COMPACT OR SHEET INCLUDING ALLOY POWDER, AND INDUCTOR, REACTOR, CHOKE COIL, NOISE FILTER, TRANSFORMER, ROTARY MACHINE, POWER GENERATOR, OR RADIO WAVE ABSORBER INCLUDING GREEN COMPACT OR SHEET

• Main Authors: YUKINOBU MASAYA, SHIN MIN SEOB, MIZUNO SHIORI
• Format: Patent
• Language: English; Japanese
• Published: 22.09.2022
• Subjects: ALLOYS; BASIC ELECTRIC ELEMENTS; CASTING; CHEMISTRY; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; INDUCTANCES; MAGNETS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

To provide an iron-nickel alloy powder having superior powder characteristics and magnetization characteristics, a green compact or a sheet including the alloy powder, and an inductor, a reactor, a choke coil, a noise filter, a transformer, a rotary machine, a power generator, or a radio wave absorber including the green compact or sheet.SOLUTION: An iron (Fe)-nickel (Ni) alloy powder contains at least iron (Fe) and nickel (Ni) as magnetic metals. The alloy powder has an average particle size of 0.10 μm or more and 0.60 μm or less. The alloy powder has a coefficient of variation (CV value) of 25% or less, which is determined by the following formula (1) from an average particle size and a standard deviation in number size distribution.SELECTED DRAWING: Figure 8 【課題】粉体特性及び磁気特性に優れる鉄－ニッケル系合金粉、前記合金粉を含む圧粉体又はシート、並びに前記圧粉体又はシートを備えたインダクタ、リアクトル、チョークコイル、ノイズフィルタ、トランス、回転機、発電機、又は電波吸収体を提供すること。【解決手段】少なくとも鉄（Ｆｅ）及びニッケル（Ｎｉ）を磁性金属として含む鉄（Ｆｅ）－ニッケル（Ｎｉ）系合金粉であって、平均粒径が０．１０μｍ以上０．６０μｍ以下であり、個数粒度分布における平均粒径及び標準偏差から下記（１）式にしたがって求められる変動係数（ＣＶ値）が２５％以下である、合金粉。TIFF2022138129000036.tif15134【選択図】図８