SOFT MAGNETIC METAL POWDER, POWDER MAGNETIC CORE, AND MAGNETIC COMPONENT

To provide a powder magnetic core good in voltage resistance, and a magnetic component having the same, and a soft magnetic metal powder suitable for the powder magnetic core.SOLUTION: There is provided a soft magnetic metal powder containing a plurality of soft magnetic metal particles constituting...

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Main Authors HORINO KENJI, MATSUMOTO HIROYUKI, NAKANO TAKUMA, YOSHITOME KAZUHIRO, MORI SATOKO, TOKORO SEIGO
Format Patent
LanguageEnglish
Japanese
Published 19.09.2019
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:To provide a powder magnetic core good in voltage resistance, and a magnetic component having the same, and a soft magnetic metal powder suitable for the powder magnetic core.SOLUTION: There is provided a soft magnetic metal powder containing a plurality of soft magnetic metal particles constituting of Fe-based nanocrystal alloy containing Cu, the soft magnetic metal particles have a core part and a first shell part surrounding the core part, and B/A is 3.0 to 1000 when average crystallite diameter of Cu crystallite existing in the core part is A and maximum crystallite diameter of the Cu crystallite existing in the first shell part is B.SELECTED DRAWING: Figure 2 【課題】耐電圧性が良好な圧粉磁心、これを備える磁性部品および当該圧粉磁心に好適な軟磁性金属粉末を提供すること。【解決手段】Ｃｕを含むＦｅ系ナノ結晶合金から構成される軟磁性金属粒子を複数含む軟磁性金属粉末であって、軟磁性金属粒子は、コア部と、コア部の周囲を取り囲む第１のシェル部と、を有し、コア部に存在するＣｕ結晶子の平均結晶子径をＡとし、第１のシェル部に存在するＣｕ結晶子の最大結晶子径をＢとした場合、Ｂ／Ａが３．０以上１０００以下であることを特徴とする軟磁性金属粉末である。【選択図】図２
Bibliography:Application Number: JP20180043648