SOFT MAGNETIC ALLOY POWDER, MAGNETIC CORE, MAGNETIC COMPONENT, AND ELECTRONIC DEVICE

• Main Authors: HASEGAWA AKITO, HOSONO MASAKAZU, YOSHITOME KAZUHIRO, KAJIURA YOSHIKI
• Format: Patent
• Language: English; Japanese
• Published: 13.03.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CASTING; ELECTRICITY; INDUCTANCES; MAGNETS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; PERFORMING OPERATIONS; POWDER METALLURGY; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS; TRANSPORTING; WORKING METALLIC POWDER

To provide a soft magnetic alloy powder capable of producing a magnetic core with improved DC superposition characteristics and a magnetic core with improved DC superposition characteristics, a soft magnetic alloy powder, a magnetic component, and an electronic device.SOLUTION: The soft magnetic alloy powder has first to fifth particles, each of which has a particle diameter within a specific range. Among the first to fifth particles, the average particle diameter of the nth particle is denoted as xn (μm), the average circularity of the nth particle is denoted as yn, and the dispersion of the circularity of the nth particle is denoted as zn. The slope my of an approximate line when plotting points (xn,yn) (n=1 to 5) in the xy-plane is greater than or equal to -0.0030. The slope mz of an approximate line when plotting points (xn,zn)(n=1 to 5) in the xz plane is less than or equal to 0.00050.SELECTED DRAWING: None 【課題】直流重畳特性を改善した磁気コアを作製できる軟磁性合金粉末および直流重畳特性を改善した磁気コア、軟磁性合金粉末、磁性部品および電子機器を提供する。【解決手段】粒子径がそれぞれ特定の範囲内である第１粒子から第５粒子を有する軟磁性合金粉末である。第１粒子から第５粒子のうち、第ｎ粒子の平均粒子径をｘｎ（μｍ）、第ｎ粒子の平均円形度をｙｎ、第ｎ粒子の円形度の分散をｚｎとして、点（ｘｎ，ｙｎ）（ｎ＝１～５）をｘｙ平面にプロットする場合の近似直線の傾きｍｙが－０．００３０以上であり、点（ｘｎ，ｚｎ）（ｎ＝１～５）をｘｚ平面にプロットする場合の近似直線の傾きｍｚが０．０００５０以下である。【選択図】なし