POWDER FOR MAGNETIC CORES, MAGNETIC CORE USING SAME, AND COIL COMPONENT

A powder for magnetic cores, which contains particles of a first Fe-based alloy having a region in which nano-sized FeSi crystals form a columnar texture and particles of a soft magnetic material composed of a metal texture different from that of the particles of the first Fe-based alloy. The column...

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Bibliographic Details
Main Authors CHIWATA Nobuhiko, KATO Tetsuro, OHTA Motoki
Format Patent
LanguageEnglish
French
Japanese
Published 31.10.2019
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
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Summary:A powder for magnetic cores, which contains particles of a first Fe-based alloy having a region in which nano-sized FeSi crystals form a columnar texture and particles of a soft magnetic material composed of a metal texture different from that of the particles of the first Fe-based alloy. The columnar texture is composed of multiple linear FeSi crystals that are arranged along in almost one direction and an amorphous phase that is present between the linear FeSi crystals, and is a striped texture in which the linear FeSi crystals are persent in parallel with each other. La présente invention concerne une poudre pour noyaux magnétiques, qui contient des particules d'un premier alliage à base de Fe ayant une région dans laquelle des cristaux de FeSi de taille nanométrique forment une texture en colonne et des particules d'un matériau magnétique doux composé d'une texture métallique différente de celle des particules du premier alliage à base de Fe. La texture en colonne est composée de multiples cristaux de FeSi linéaires qui sont disposés le long d'une direction pratiquement unique et une phase amorphe qui est présente entre les cristaux de FeSi linéaires, et est une texture en bandes dans laquelle les cristaux de FeSi linéaires sont disposés en parallèle les uns aux autres. ナノサイズのFeSi結晶が柱状組織をなす領域を備えた第一のFe基合金の粒子と、前記第一のFe基合金の粒子とは異なる金属組織からなる軟磁性材料の粒子とを含む磁心用粉末。柱状組織は、ほぼ一方向に沿って並んだ複数の線状のFeSi結晶と、その線状のFeSi結晶の間に存在する非晶質相とからなり、線状のFeSi結晶が平行に存在して現れる縞模様の組織となっている。
Bibliography:Application Number: WO2019JP17934