JP2014116332A - 磁性体複合材料 - Google Patents
磁性体複合材料 Download PDFInfo
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- JP2014116332A JP2014116332A JP2012266825A JP2012266825A JP2014116332A JP 2014116332 A JP2014116332 A JP 2014116332A JP 2012266825 A JP2012266825 A JP 2012266825A JP 2012266825 A JP2012266825 A JP 2012266825A JP 2014116332 A JP2014116332 A JP 2014116332A
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- magnetic
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- composite material
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002131 composite material Substances 0.000 title claims abstract description 39
- 239000002923 metal particle Substances 0.000 claims abstract description 50
- 230000035699 permeability Effects 0.000 claims abstract description 25
- 239000003989 dielectric material Substances 0.000 claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 229910000531 Co alloy Inorganic materials 0.000 claims description 6
- QVYYOKWPCQYKEY-UHFFFAOYSA-N [Fe].[Co] Chemical compound [Fe].[Co] QVYYOKWPCQYKEY-UHFFFAOYSA-N 0.000 claims description 6
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229920013716 polyethylene resin Polymers 0.000 description 5
- 239000006249 magnetic particle Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000005285 magnetism related processes and functions Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003050 poly-cycloolefin Polymers 0.000 description 1
- 229920000412 polyarylene Polymers 0.000 description 1
- 229920002577 polybenzoxazole Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- -1 polyphenylene Polymers 0.000 description 1
- 229920001955 polyphenylene ether Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- 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
- H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
- H01F1/442—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids the magnetic component being a metal or alloy, e.g. Fe
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
-
- 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
- H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
- H01F1/0306—Metals or alloys, e.g. LAVES phase alloys of the MgCu2-type
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Soft Magnetic Materials (AREA)
Abstract
本発明の課題は、高周波領域で機能する磁性体複合材料を提供することである。
【解決手段】
本発明は、磁性金属粒子を誘電体材料中に分散させ、3GHzの周波数における複素透磁率の実部μ'が1よりも大きく、かつ損失正接tanδが0.1以下である磁性体複合材料である。該金属粒子は、アスペクト比が1.5〜2.0の針状形状を有する。
【選択図】図2
Description
上記式(3)によれば、高周波領域においては共鳴周波数frが増大し、透磁率μが減少する。したがって共鳴周波数frと透磁率μとのいずれも高値で維持する場合には、飽和磁化Msが高い磁性体を用いることが好ましい。かかる観点から、本発明においては飽和磁化Msが高い鉄や鉄−コバルト合金を使用することが好ましい。これにより高周波数領域において、上記に説明した形状異方性に基づく磁気損失抑制効果と合わせて高透磁率を維持することができる。
長軸長45nm、アスペクト比1.5のFe70Co30合金針状粒子と、誘電体材料としてポリエチレン樹脂とを、針状磁性粒子とポリエチレン樹脂の割合が、30 vol%:70 vol%となるように秤量した。上記の材料に分散剤およびカップリング剤を適宜添加して、安田精機製作所製ミキシングロール(No191-TM/WM)を用いて、混練した。
アスペクト比が異なる他は、実施例1と同様の方法で実施例2〜6および比較例1〜3の磁性体複合材料を作製した。
作製した実施例1〜6および比較例1〜3のトロイダル状試料を用いて高周波特性を測定した。評価方法は、ネットワークアナライザー(Agilent社製HP8753E)と同軸管(外径:7 mm,内径:3mm)のSパラメータ用測定冶具を使用した。30 MHz〜6 GHzの測定周波数帯域でS11(複素反射率)及び、S21(複素透過率)パラメータを測定し、これらの値から複素比透磁率μr= μr’-jμr”を評価した(Sパラメータ法)。表1に実施例1〜6および比較例1〜3の3GHzでの複素比透磁率の実数部μ’と、損失正接tanδ(=μ”/μ’)と、周波数に対するμ”のピーク位置で定義される共鳴周波数とを示す。
2 誘電体材料
3 磁性体複合材料
X 磁性金属粒子の長軸長
Y 磁性金属粒子の短軸長
Claims (4)
- 磁性金属粒子を誘電体材料中に分散させ、3GHzの周波数における複素透磁率の実部μ'が1よりも大きく、かつ損失正接tanδが0.1以下である磁性体複合材料。
- 前記磁性金属粒子の形状が、アスペクト比(長軸長/短軸長)が1.5〜20の針状である請求項1に記載の磁性体複合材料。
- 前記磁性金属粒子は、鉄又は鉄−コバルト合金を主成分とする磁性金属粒子である請求項1又は請求項2に記載の磁性体複合材料。
- 前記磁性金属粒子を誘電体材料中に無配向に分散させた請求項1ないし請求項3に記載の磁性体複合材料。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012266825A JP2014116332A (ja) | 2012-12-06 | 2012-12-06 | 磁性体複合材料 |
KR1020130102490A KR20140074177A (ko) | 2012-12-06 | 2013-08-28 | 자성체 복합 재료 |
US14/098,979 US9418780B2 (en) | 2012-12-06 | 2013-12-06 | Magnetic composite material |
Applications Claiming Priority (1)
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---|---|---|---|
JP2012266825A JP2014116332A (ja) | 2012-12-06 | 2012-12-06 | 磁性体複合材料 |
Publications (1)
Publication Number | Publication Date |
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JP2014116332A true JP2014116332A (ja) | 2014-06-26 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2012266825A Pending JP2014116332A (ja) | 2012-12-06 | 2012-12-06 | 磁性体複合材料 |
Country Status (2)
Country | Link |
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JP (1) | JP2014116332A (ja) |
KR (1) | KR20140074177A (ja) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017063156A (ja) * | 2015-09-25 | 2017-03-30 | Dowaエレクトロニクス株式会社 | Fe−Co合金粉末およびその製造方法並びにアンテナ、インダクタおよびEMIフィルタ |
KR20170121237A (ko) | 2015-02-25 | 2017-11-01 | 도와 일렉트로닉스 가부시키가이샤 | 자성 컴파운드, 안테나 및 전자 기기 |
JP2019012750A (ja) * | 2017-06-29 | 2019-01-24 | Tdk株式会社 | コイル部品およびlc複合部品 |
JP2019176004A (ja) * | 2018-03-28 | 2019-10-10 | Tdk株式会社 | 複合磁性体 |
KR102019877B1 (ko) * | 2019-05-08 | 2019-11-04 | 국방과학연구소 | 코일형 전도성 미세 입자를 이용한 유효 투자율을 가지는 입자-매질 복합소재 |
JP2020102486A (ja) * | 2018-12-20 | 2020-07-02 | Tdk株式会社 | 複合磁性材料および磁心 |
US11056257B2 (en) | 2015-06-02 | 2021-07-06 | Dowa Electronics Materials Co., Ltd. | Magnetic compound and antenna |
US11114228B2 (en) | 2015-06-02 | 2021-09-07 | Dowa Electronics Materials Co., Ltd. | Magnetic powder composite, antenna and electronic device, and method for producing the same |
US11424059B2 (en) | 2018-03-28 | 2022-08-23 | Tdk Corporation | Composite magnetic body |
Families Citing this family (2)
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WO2017078404A1 (ko) * | 2015-11-02 | 2017-05-11 | 주식회사 아모그린텍 | 형상 이방성 자성 입자, 이를 포함하는 전자파 흡수시트 및 이를 포함하는 안테나 모듈 |
KR101856561B1 (ko) * | 2015-11-02 | 2018-06-19 | 주식회사 아모그린텍 | 형상이방성 자성 입자의 제조방법 및 이를 포함하는 전자파 흡수시트의 제조방법 |
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JP2008147404A (ja) * | 2006-12-08 | 2008-06-26 | Sumitomo Electric Ind Ltd | 軟磁性複合材料 |
JP2009027450A (ja) * | 2007-07-19 | 2009-02-05 | Toshiba Corp | ハイインピーダンス基板 |
JP2012060071A (ja) * | 2010-09-13 | 2012-03-22 | Sumitomo Osaka Cement Co Ltd | 複合磁性体の製造方法及び複合磁性体製造用磁場配向装置 |
JP2012227406A (ja) * | 2011-04-21 | 2012-11-15 | Toray Ind Inc | ペースト組成物、磁性体組成物およびインダクタ |
JP2013236021A (ja) * | 2012-05-10 | 2013-11-21 | Dowa Electronics Materials Co Ltd | 磁性部品とそれに用いられる金属粉末およびその製造方法 |
-
2012
- 2012-12-06 JP JP2012266825A patent/JP2014116332A/ja active Pending
-
2013
- 2013-08-28 KR KR1020130102490A patent/KR20140074177A/ko not_active Application Discontinuation
Patent Citations (5)
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JP2008147404A (ja) * | 2006-12-08 | 2008-06-26 | Sumitomo Electric Ind Ltd | 軟磁性複合材料 |
JP2009027450A (ja) * | 2007-07-19 | 2009-02-05 | Toshiba Corp | ハイインピーダンス基板 |
JP2012060071A (ja) * | 2010-09-13 | 2012-03-22 | Sumitomo Osaka Cement Co Ltd | 複合磁性体の製造方法及び複合磁性体製造用磁場配向装置 |
JP2012227406A (ja) * | 2011-04-21 | 2012-11-15 | Toray Ind Inc | ペースト組成物、磁性体組成物およびインダクタ |
JP2013236021A (ja) * | 2012-05-10 | 2013-11-21 | Dowa Electronics Materials Co Ltd | 磁性部品とそれに用いられる金属粉末およびその製造方法 |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20170121237A (ko) | 2015-02-25 | 2017-11-01 | 도와 일렉트로닉스 가부시키가이샤 | 자성 컴파운드, 안테나 및 전자 기기 |
US11056257B2 (en) | 2015-06-02 | 2021-07-06 | Dowa Electronics Materials Co., Ltd. | Magnetic compound and antenna |
US11114228B2 (en) | 2015-06-02 | 2021-09-07 | Dowa Electronics Materials Co., Ltd. | Magnetic powder composite, antenna and electronic device, and method for producing the same |
JP2017063156A (ja) * | 2015-09-25 | 2017-03-30 | Dowaエレクトロニクス株式会社 | Fe−Co合金粉末およびその製造方法並びにアンテナ、インダクタおよびEMIフィルタ |
JP2019012750A (ja) * | 2017-06-29 | 2019-01-24 | Tdk株式会社 | コイル部品およびlc複合部品 |
JP2019176004A (ja) * | 2018-03-28 | 2019-10-10 | Tdk株式会社 | 複合磁性体 |
US11424059B2 (en) | 2018-03-28 | 2022-08-23 | Tdk Corporation | Composite magnetic body |
US11456097B2 (en) | 2018-03-28 | 2022-09-27 | Tdk Corporation | Composite magnetic body |
JP7172091B2 (ja) | 2018-03-28 | 2022-11-16 | Tdk株式会社 | 複合磁性体 |
JP2020102486A (ja) * | 2018-12-20 | 2020-07-02 | Tdk株式会社 | 複合磁性材料および磁心 |
JP7119979B2 (ja) | 2018-12-20 | 2022-08-17 | Tdk株式会社 | 複合磁性材料および磁心 |
KR102019877B1 (ko) * | 2019-05-08 | 2019-11-04 | 국방과학연구소 | 코일형 전도성 미세 입자를 이용한 유효 투자율을 가지는 입자-매질 복합소재 |
Also Published As
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