JP5344171B2 - 異方性希土類−鉄系樹脂磁石 - Google Patents
異方性希土類−鉄系樹脂磁石 Download PDFInfo
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- JP5344171B2 JP5344171B2 JP2009223908A JP2009223908A JP5344171B2 JP 5344171 B2 JP5344171 B2 JP 5344171B2 JP 2009223908 A JP2009223908 A JP 2009223908A JP 2009223908 A JP2009223908 A JP 2009223908A JP 5344171 B2 JP5344171 B2 JP 5344171B2
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- Prior art keywords
- magnet
- hcjp
- magnet material
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- iron
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Classifications
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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
- H01F1/032—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 hard-magnetic materials
- H01F1/04—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 hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
- H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
- H01F1/0578—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together bonded together
-
- 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
- H01F1/032—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 hard-magnetic materials
- H01F1/04—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 hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/059—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and Va elements, e.g. Sm2Fe17N2
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0273—Imparting anisotropy
- H01F41/028—Radial anisotropy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0266—Moulding; Pressing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Description
ARave:平均アスペクト比
HcJpN:Nd2Fe14B系磁石材料の室温の保磁力
HcJpS:球状Sm2Fe17N3系磁石材料の保磁力
Hk/HcJRT:磁石の室温における減磁曲線の角型性
Hk/HcJ100:磁石の100℃の角型性
MrM:樹脂磁石の残留磁化
MrP:球状Sm2Fe17N3系磁石材料とNd2Fe14B系磁石材料との混合体の残留磁化
VfP:樹脂磁石に占める全磁石材料の体積分率
MrM/(MrP×VfP):磁石材料の整列度
Claims (6)
- 連続相を1)室温で固体のエポキシオリゴマーで30〜100nmの厚さで被覆した平均粒径1〜10μm、平均アスペクト比ARave(ただし、ARは粒子像の最長径をa、aに垂直な最大径をbとしたとき、b/a)が0.80以上で、かつSm−Fe系合金の窒化後に機械的な粉砕手段を適用することなく作製した球状Sm2Fe17N3系磁石材料、2)前記オリゴマーと反応し得る活性水素化合物を有する直鎖状ポリマー、3)必要に応じて適宜加える添加剤とで構成し、分散相を室温で固体のエポキシオリゴマーで30〜100nmの厚さで被覆した平均粒子径50〜150μm、平均アスペクト比ARave0.65以上のNd2Fe14B系磁石材料とし、かつ当該連続相と分散相との顆粒状複合体の空隙率を0%以上かつ5%以下とし、さらに、平均粒子径Dが0μm<D≦10μmの架橋剤を顆粒状複合体の表面に付着せしめた構成の組成物を成形圧力50MPa以下で所定形状に磁界中成形して、球状Sm2Fe17N3系磁石材料の保磁力をHcJpSとし、Nd2Fe14B系磁石材料の室温の保磁力をHcJpNとしたとき、HcJpNが1〜1.25MA/mであり、かつHcJpS≦HcJpNの構成とした異方性希土類−鉄系樹脂磁石。
- 球状Sm2Fe17N3系磁石材料の保磁力をHcJpS、Nd2Fe14B系磁石材料の室温の保磁力HcJpN、HcJpSとHcJpNの比(HcJpS/HcJpN)をαとしたとき、HcJpNが1〜1.25MA/mであり、かつαが0.65以上かつ0.75以下の構成とした請求項1記載の異方性希土類−鉄系樹脂磁石。
- 樹脂磁石の残留磁化をMrM、球状Sm2Fe17N3系磁石材料とNd2Fe14B系磁石材料との混合体の残留磁化をMrP、樹脂磁石に占める全磁石材料の体積分率をVfPとしたとき、80vol.%≦Vf P <100 vol.%とし、磁石材料の整列度MrM/(MrP×VfP)が0.96以上かつ0.98以下である請求項1、2記載の異方性希土類−鉄系樹脂磁石。
- 室温における最大エネルギー積(BH)max が170 kJ/m3以上かつ180 kJ/m 3 以下である請求項1から3のいずれか1項記載の異方性希土類−鉄系樹脂磁石。
- 室温の角型比をHk/HcJRTとし、100℃の角型比をHk/HcJ100としたとき、Hk/HcJRT< Hk/HcJ100である請求項1記載の異方性希土類−鉄系樹脂磁石。
- 円弧状、円筒状など環状形状、極対数1以上、およびパーミアンス係数Pcを3以上として鉄心との磁気回路を構成する請求項1記載の異方性希土類−鉄系樹脂磁石。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009223908A JP5344171B2 (ja) | 2009-09-29 | 2009-09-29 | 異方性希土類−鉄系樹脂磁石 |
US12/853,601 US8329056B2 (en) | 2009-09-29 | 2010-08-10 | Anisotropic rare earth-iron based resin bonded magnet |
DE102010037838A DE102010037838A1 (de) | 2009-09-29 | 2010-09-29 | Anisotroper Kunstharz-Verbundmagnet auf Seltenerd-Eisen Basis |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009223908A JP5344171B2 (ja) | 2009-09-29 | 2009-09-29 | 異方性希土類−鉄系樹脂磁石 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011077082A JP2011077082A (ja) | 2011-04-14 |
JP5344171B2 true JP5344171B2 (ja) | 2013-11-20 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2009223908A Expired - Fee Related JP5344171B2 (ja) | 2009-09-29 | 2009-09-29 | 異方性希土類−鉄系樹脂磁石 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8329056B2 (ja) |
JP (1) | JP5344171B2 (ja) |
DE (1) | DE102010037838A1 (ja) |
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JP2016536777A (ja) | 2013-06-27 | 2016-11-24 | リージェンツ オブ ザ ユニバーシティ オブ ミネソタ | 窒化鉄材料及び窒化鉄材料を含む磁石 |
JP6441371B2 (ja) | 2014-02-19 | 2018-12-19 | ハッチンソンHutchinson | 電極組成物又は磁気特性を有する組成物を作製する方法、該方法によって得られた混合物及び組成物、並びにそれらの電極 |
AU2015235987B2 (en) | 2014-03-28 | 2017-03-16 | Regents Of The University Of Minnesota | Iron nitride magnetic material including coated nanoparticles |
US9994949B2 (en) | 2014-06-30 | 2018-06-12 | Regents Of The University Of Minnesota | Applied magnetic field synthesis and processing of iron nitride magnetic materials |
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2009
- 2009-09-29 JP JP2009223908A patent/JP5344171B2/ja not_active Expired - Fee Related
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2010
- 2010-08-10 US US12/853,601 patent/US8329056B2/en not_active Expired - Fee Related
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US8329056B2 (en) | 2012-12-11 |
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