JP2014120699A - Fe基軟磁性粉末、前記Fe基軟磁性粉末を用いた複合磁性粉末及び前記複合磁性粉末を用いた圧粉磁心 - Google Patents
Fe基軟磁性粉末、前記Fe基軟磁性粉末を用いた複合磁性粉末及び前記複合磁性粉末を用いた圧粉磁心 Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
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- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/14708—Fe-Ni based alloys
- H01F1/14733—Fe-Ni based alloys in the form of particles
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- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15358—Making agglomerates therefrom, e.g. by pressing
- H01F1/15366—Making agglomerates therefrom, e.g. by pressing using a binder
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- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/08—Cores, Yokes, or armatures made from powder
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Abstract
【解決手段】 本発明におけるFe基軟磁性粉末は、粉末表面での水酸基密度が、20(at%・g/cm2)以上100(at%・g/cm2)以下の範囲内であることを特徴とする。水酸基密度は、{O濃度×(Metal−OH比率)}/SAで示される。式中のMetal−OH比率は、粉末表面でのO濃度に対する水酸基の比率を示し、O濃度(at%)及びMetal−OH比率(%)は、XPSにより測定された分析結果であり、SAは粉末表面の比表面積(m2/g)を示す。
【選択図】図1
Description
ところで圧粉磁心はコアロスの低減等を図るべく電気抵抗率が高いことが望まれる。
以下の数式2にて示される粉末表面での水酸基密度が、20(at%・g/cm2)以上100(at%・g/cm2)以下の範囲内であることを特徴とするものである。
{O濃度×(Metal−OH比率)}/SA
図1に示すFe基軟磁性粉末1は、例えば、水アトマイズ法を用いて作製した非晶質軟磁性粉末である。本発明におけるFe基軟磁性粉末1は、例えば、組成式が、Fe100−a−b−c−x−y−z−tNiaSnbCrcPxCyBzSitで示され、0at%≦a≦10at%、0at%≦b≦3at%、0at%≦c≦6at%、6.8at%≦x≦10.8at%、2.0at%≦y≦9.8at%、0at%≦z≦8.0at%、0at%≦t≦5.0at%である。
ここで粉末表面1aでの水酸基密度を以下の数式3で表すこととした。
{O濃度×(Metal−OH比率)}/SA
また比表面積SAについては、BET1点法で測定した。
各圧粉磁心の電気抵抗及び透磁率は表1に示されている。
図11及び表1に示すように、実施例1〜7は、比較例に比べてO濃度が低くなった。
{O濃度×(Metal−OH比率)}/SA
2 コイル封入圧粉磁心
1a 粉末表面
3、11 圧粉磁心
4 コイル
10 複合磁性粉末
Claims (10)
- 以下の数式1にて示される粉末表面での水酸基密度が、20(at%・g/cm2)以上100(at%・g/cm2)以下の範囲内であることを特徴とするFe基軟磁性粉末。
(数式1)
{O濃度×(Metal−OH比率)}/SA
(式中のMetal−OH比率は、粉末表面でのO濃度に対する水酸基の比率を示し、O濃度(at%)及びMetal−OH比率(%)は、XPSにより測定された分析結果であり、SAは粉末表面の比表面積(m2/g)を示す) - 前記水酸基密度が、28(at%・g/cm2)以上96(at%・g/cm2)以下の範囲内である請求項1記載のFe基軟磁性粉末。
- 平均粒径(D50)が、10μm以上12.5μm以下である請求項1又は2に記載のFe基軟磁性粉末。
- 赤外線吸収法によるO濃度が、0.2wt%以下である請求項1ないし3のいずれか1項に記載のFe基軟磁性粉末。
- 前記Fe基軟磁性粉末は、Fe100−a−b−c−x−y−z−tNiaSnbCrcPxCyBzSitで示され、0at%≦a≦10at%、0at%≦b≦3at%、0at%≦c≦6at%、6.8at%≦x≦10.8at%、2.0at%≦y≦9.8at%、0at%≦z≦8.0at%、0at%≦t≦5.0at%である請求項1ないし4のいずれか1項に記載のFe基軟磁性粉末。
- 請求項1ないし5のいずれか1項に記載された多数のFe基軟磁性粉末をバインダー樹脂により結着してなることを特徴とする複合磁性粉末。
- 前記バインダー樹脂は、極性をもつ官能基を有する請求項6記載の複合磁性粉末。
- 前記官能基は、水酸基である請求項7記載の複合磁性粉末。
- 前記バインダー樹脂は、アクリル樹脂である請求項6ないし8のいずれか1項に記載の複合磁性粉末。
- 請求項6ないし9のいずれか1項に記載された前記複合磁性粉末を圧縮成型して得られることを特徴とする圧粉磁心。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012276588A JP5875159B2 (ja) | 2012-12-19 | 2012-12-19 | Fe基軟磁性粉末、前記Fe基軟磁性粉末を用いた複合磁性粉末及び前記複合磁性粉末を用いた圧粉磁心 |
| TW102137381A TWI484509B (zh) | 2012-12-19 | 2013-10-16 | Fe-based soft magnetic powder, a composite magnetic powder using the Fe-based soft magnetic powder, and a composite magnetic powder using the above-mentioned composite magnetic powder |
| KR1020130155452A KR101503349B1 (ko) | 2012-12-19 | 2013-12-13 | Fe기 연자성 분말, 상기 Fe기 연자성 분말을 이용한 복합 자성 분말 및 상기 복합 자성 분말을 이용한 압분 자심 |
| CN201310703788.8A CN103887031B (zh) | 2012-12-19 | 2013-12-19 | Fe基软磁性粉末、使用了其的复合磁性粉末及使用了上述复合磁性粉末的压粉磁芯 |
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| JP2012276588A JP5875159B2 (ja) | 2012-12-19 | 2012-12-19 | Fe基軟磁性粉末、前記Fe基軟磁性粉末を用いた複合磁性粉末及び前記複合磁性粉末を用いた圧粉磁心 |
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| JP2014120699A true JP2014120699A (ja) | 2014-06-30 |
| JP5875159B2 JP5875159B2 (ja) | 2016-03-02 |
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| JP2012276588A Active JP5875159B2 (ja) | 2012-12-19 | 2012-12-19 | Fe基軟磁性粉末、前記Fe基軟磁性粉末を用いた複合磁性粉末及び前記複合磁性粉末を用いた圧粉磁心 |
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| JP (1) | JP5875159B2 (ja) |
| KR (1) | KR101503349B1 (ja) |
| CN (1) | CN103887031B (ja) |
| TW (1) | TWI484509B (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019045100A1 (ja) * | 2017-09-04 | 2019-03-07 | Dowaエレクトロニクス株式会社 | 軟磁性粉末、Fe粉末又はFeを含む合金粉末の製造方法、軟磁性材料、並びに圧粉磁心の製造方法 |
| JP2019044256A (ja) * | 2017-09-04 | 2019-03-22 | Dowaエレクトロニクス株式会社 | Fe粉末又はFeを含む合金粉末の製造方法 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710771B (zh) * | 2016-12-28 | 2018-11-02 | 深圳顺络电子股份有限公司 | 一种软磁合金材料及其制备方法、功率电感 |
| WO2020145047A1 (ja) * | 2019-01-08 | 2020-07-16 | パナソニックIpマネジメント株式会社 | 磁性材料の製造方法、圧粉磁心の製造方法、コイル部品の製造方法、圧粉磁心、コイル部品および造粒粉 |
| TWI741888B (zh) * | 2020-11-30 | 2021-10-01 | 奇力新電子股份有限公司 | 電感製造方法及電感 |
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2013
- 2013-10-16 TW TW102137381A patent/TWI484509B/zh active
- 2013-12-13 KR KR1020130155452A patent/KR101503349B1/ko active Active
- 2013-12-19 CN CN201310703788.8A patent/CN103887031B/zh active Active
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| JPS631003A (ja) * | 1986-06-20 | 1988-01-06 | Hitachi Maxell Ltd | 磁性粉末 |
| JPH06256457A (ja) * | 1993-03-08 | 1994-09-13 | Hitachi Maxell Ltd | 樹脂および磁気記録媒体の製造方法 |
| JP2004022814A (ja) * | 2002-06-17 | 2004-01-22 | Alps Electric Co Ltd | 磁気素子及びインダクタ及びトランス |
| JP2005307291A (ja) * | 2004-04-22 | 2005-11-04 | Alps Electric Co Ltd | 非晶質軟磁性合金粉末及びそれを用いた圧粉コアと電波吸収体 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019045100A1 (ja) * | 2017-09-04 | 2019-03-07 | Dowaエレクトロニクス株式会社 | 軟磁性粉末、Fe粉末又はFeを含む合金粉末の製造方法、軟磁性材料、並びに圧粉磁心の製造方法 |
| JP2019044256A (ja) * | 2017-09-04 | 2019-03-22 | Dowaエレクトロニクス株式会社 | Fe粉末又はFeを含む合金粉末の製造方法 |
| JP2019077952A (ja) * | 2017-09-04 | 2019-05-23 | Dowaエレクトロニクス株式会社 | 軟磁性粉末、軟磁性材料、並びに圧粉磁心の製造方法 |
| KR20200050948A (ko) * | 2017-09-04 | 2020-05-12 | 도와 일렉트로닉스 가부시키가이샤 | 연자성 분말, Fe 분말 또는 Fe를 포함하는 합금 분말의 제조 방법, 연자성 재료, 및 압분자심의 제조 방법 |
| KR102428560B1 (ko) | 2017-09-04 | 2022-08-02 | 도와 일렉트로닉스 가부시키가이샤 | 연자성 분말, Fe 분말 또는 Fe를 포함하는 합금 분말의 제조 방법, 연자성 재료, 및 압분자심의 제조 방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103887031B (zh) | 2016-09-07 |
| TW201435930A (zh) | 2014-09-16 |
| KR20140079720A (ko) | 2014-06-27 |
| CN103887031A (zh) | 2014-06-25 |
| KR101503349B1 (ko) | 2015-03-18 |
| JP5875159B2 (ja) | 2016-03-02 |
| TWI484509B (zh) | 2015-05-11 |
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