JPWO2016125466A1 - 磁性材料およびその製造方法 - Google Patents
磁性材料およびその製造方法 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
- H01F1/34—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 non-metallic substances, e.g. ferrites
- H01F1/342—Oxides
- H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
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- 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
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- 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
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Abstract
Description
本開示にかかる磁性材料及びその製造方法の実施の形態を説明する前に、本開示の基礎となった知見について説明する。
[1.用語の定義]
はじめに、本実施の形態で使用する用語の定義について説明する。
本実施の形態に係る磁性材料は、Fe、Al、Mnを含む酸化物であるフェライトFe(Al1−xMnx)2O4である。
以下、本実施の形態にかかるフェライトFe(Al1−xMnx)2O4の製造方法について説明する。
上述のように、xの値をx=0、0.2、0.4、0.5、0.6、0.7、0.8と変化させた場合のそれぞれのFe(Al1−xMnx)2O4の結晶構造について評価を行った。
次に、Fe(Al1−xMnx)2O4の磁気特性について説明する。
1b 溶液(クエン酸)
1c 溶液(エチレングリコール)
Claims (8)
- Fe(Al1−xMnx)2O4(0<x<1)という構成で表される、強磁性を示す
磁性材料。 - 前記磁性材料の質量磁化σs[emu/g]の値の範囲は、σs≧10である
請求項1に記載の磁性材料。 - 前記磁性材料において、前記xの値の範囲は、x≧0.2である
請求項1または2に記載の磁性材料。 - 前記磁性材料は、二酸化マンガンMnO2を原料に含む
請求項1〜3のいずれか1項に記載の磁性材料。 - 磁性材料の製造方法であって、
前記磁性材料は、Fe(Al1−xMnx)2O4(0<x<1)という構成で表される、強磁性を示す磁性材料であり、
出発原料であるFeの硝酸塩、Alの硝酸塩およびMnを含む酸化物を蒸留水に溶解して混合水溶液を調製する工程と、
前記混合水溶液にクエン酸とエチレングリコールとを混合して金属−クエン酸錯体を調製する工程と、
前記金属−クエン酸錯体をゲル状になるまで煮沸したのち乾燥することにより前駆体を得る工程と、
前記前駆体を焼結して前記磁性材料を得る焼結工程と、
を含む
磁性材料の製造方法。 - 前記焼結工程において、3価のFeイオンは2価のFeイオンに、4価のMnイオンは3価のMnイオンに還元される
請求項5に記載の磁性材料の製造方法。 - 前記Feの硝酸塩は、硝酸鉄(III)九水和物Fe(NO3)3・9H2Oであり、
前記Alの硝酸塩は、硝酸アルミニウム(III)九水和物Al(NO3)2・9H2Oであり、
前記Mnを含む酸化物は、二酸化マンガンMnO2である
請求項5または6に記載の磁性材料の製造方法。 - 前記金属−クエン酸錯体を調製する工程において、前記混合水溶液中の金属イオンのモル、前記クエン酸のモル、前記エチレングリコールのモル比は、1:3:9である
請求項5〜7のいずれか1項に記載の磁性材料の製造方法。
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PCT/JP2016/000433 WO2016125466A1 (ja) | 2015-02-04 | 2016-01-28 | 磁性材料およびその製造方法 |
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WO2015019576A1 (ja) * | 2013-08-07 | 2015-02-12 | パナソニックIpマネジメント株式会社 | 複合磁性材料とこれを用いたコイル部品ならびに電源装置 |
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WO2015019576A1 (ja) * | 2013-08-07 | 2015-02-12 | パナソニックIpマネジメント株式会社 | 複合磁性材料とこれを用いたコイル部品ならびに電源装置 |
Non-Patent Citations (2)
Title |
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HIROTA, K., ET AL.: ""Preparation of B-site Mn-doped Spinel Fe(Al1-xMnx)2O4 (0≦x≦0.9) Ferrite Powders using a Modified", 粉体および粉末冶金, vol. 64, no. 7, JPN6019017452, July 2017 (2017-07-01), JP, pages 383 - 391, ISSN: 0004033743 * |
植田将弘, 加藤将樹, 廣田健: ""スピネル型(Fe,Mn)Al2O4系フェライトのパルス通電加圧焼結と物性評価"", 粉体および粉末冶金, vol. 61, no. 4, JPN6016014237, 2 August 2014 (2014-08-02), JP, pages 171 - 178, ISSN: 0004033742 * |
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CN107408439A (zh) | 2017-11-28 |
US11056258B2 (en) | 2021-07-06 |
DE112016000609T8 (de) | 2017-11-30 |
DE112016000609T5 (de) | 2017-10-12 |
JP6550586B2 (ja) | 2019-07-31 |
CN107408439B (zh) | 2019-09-27 |
US20180033531A1 (en) | 2018-02-01 |
WO2016125466A1 (ja) | 2016-08-11 |
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