JP2016540710A - 波吸収材料及びその調製方法 - Google Patents
波吸収材料及びその調製方法 Download PDFInfo
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Abstract
Description
本願は、2013年9月25日に中華人民共和国国家知識産権局に出願された中国特許出願第201310441214.8号の優先権及び利益を主張し、これらの全文を参照により本明細書に援用する。
本実施形態E1は、波吸収材料及び前記波吸収材料を調製する方法を提供する。
波吸収材料A2〜A7を調製する方法は、対応する波吸収材料の含有量が異なり、表1に記載されている通りであることを除いて、実施形態1と実質的に同様である。
波吸収材料CA1〜CA3を調製する方法は、対応する波吸収材料の含有量が異なり、表1に記載されている通りであることを除いて、実施形態1と実質的に同様である。
波吸収材料CA4は、中国特許公開第102211929号明細書の実施形態1に従って調製した。
1)初期透磁率
初期透磁率は、Aglient Technologies,Inc,USから市販されているHP4284Aインピーダンスアナライザー及び専用フィクスチャ16454Aを用いて試験した。試験する予焼結粉末を、プレス成形によって円柱状に成形した。前記円柱の外径は20mm、内径は5mm、高さは8mmであった。前記円柱を1回巻きコイルとみなした。前記コイルのインピーダンスを検出することによってコイルのインダクタンスを得、次いで、試験した材料の初期透磁率を計算することができる。試験周波数は、100kHzであった。結果を表2に示す。
抵抗率は、Semilab社から市販されているRT−100抵抗率計を用いて試験した。試験する粉末を、長さ20mm〜25mm、断面対角線長10mm〜15mmの立方体状に成形した。前記立方体を抵抗率計で試験し、次いで、マニュアルに従って抵抗率を計算した。結果を表2に示す。
Claims (16)
- Fe2O3、MnO、ZnO、及びMgOのうちの少なくとも1つを含む主組成物と、
CeO2及びP2O5のうちの少なくとも1つを含む、CeO2のP2O5に対するモル比が約1:1〜約2:1である補助組成物と、
焼結添加剤と
を含むことを特徴とする波吸収材料。 - 前記波吸収材料の総モル量に基づいて、Fe2O3の含有量が約40モル%〜約54モル%であり、MnOの含有量が約12モル%〜約20モル%であり、ZnOの含有量が約22モル%〜約25モル%であり、MgOの含有量が約5モル%〜約10モル%であり、CeO2の含有量が約0.1モル%〜約3.5モル%であり、P2O5の含有量が約0.1モル%〜約2.5モル%であり、前記焼結添加剤の含有量が約0.2モル%〜約3.5モル%である請求項1に記載の波吸収材料。
- 前記波吸収材料の総モル量に基づいて、Fe2O3の含有量が約45モル%〜約50モル%であり、MnOの含有量が約13モル%〜約16モル%であり、ZnOの含有量が約22モル%〜約25モル%であり、MgOの含有量が約5モル%〜約10モル%であり、CeO2の含有量が約1.5モル%〜約3.0モル%であり、P2O5の含有量が約1モル%〜約2モル%であり、前記焼結添加剤の含有量が約0.2モル%〜約3.5モル%である請求項1に記載の波吸収材料。
- 前記焼結添加剤が、Nb2O5、MoO3、Bi2O3、V2O5、及びSiO2からなる群から選択される少なくとも1つである請求項1から3のいずれかに記載の波吸収材料。
- 前記波吸収材料の総モル量に基づいて、Nb2O5の含有量が約0.1モル%〜約2.5モル%であり、MoO3の含有量が約0.1モル%〜約1.5モル%であり、Bi2O3の含有量が約0.2モル%〜約1.5モル%であり、V2O5の含有量が約0.1モル%〜約1.5モル%であり、SiO2の含有量が約0.2モル%〜約2.5モル%である請求項4に記載の波吸収材料。
- 請求項1から5のいずれかに記載の波吸収材料を調製する方法であって、
主組成物及び焼結添加剤を含む混合物を提供する工程と、
前記混合物を溶媒及び分散剤と共に第1の粉砕及び第1の焼結に付して第1の粉末を形成する工程と、
前記第1の粉末をCeO2及びP2O5と共に第2の粉砕に付して第2の粉末を形成する工程と、
前記第2の粉末を成形及び第2の焼結に付す工程と
を含むことを特徴とする方法。 - 前記第1の粉砕が、湿式粉砕によって実施される請求項6に記載の方法。
- 前記第2の粉砕が、ボールミル粉砕によって実施される請求項6から7のいずれかに記載の方法。
- 前記第1の粉砕が、約400r/分〜約450r/分の粉砕速度で約8時間〜約12時間実施される請求項6から8のいずれかに記載の方法。
- 前記第1の焼結が、
前記第1の粉砕工程から得られる粉砕生成物を約3℃/分〜約5℃/分の昇温速度で約700℃〜約950℃の温度に加熱する第1の加熱と、
前記第1の加熱工程から得られる加熱生成物を約700℃〜約950℃の温度で約1時間〜約4時間維持することと
を含む請求項6から9のいずれかに記載の方法。 - 前記第2の粉砕が、約300r/分〜約450r/分の粉砕速度で約4時間〜約10時間実施される請求項6から10のいずれかに記載の方法。
- 前記成形が、ブレード鋳造、コーティング、プレス成形、及び射出成形のうちの少なくとも1つによって実施される請求項6から11のいずれかに記載の方法。
- 前記第2の焼結が、
前記第1の焼結工程から得られる焼結生成物を約0.5℃/分〜約3℃/分の昇温速度で約1,000℃〜約1,150℃の温度に加熱する第2の加熱と、
前記第2の加熱工程から得られる加熱生成物を約1,000℃〜約1,150℃の温度で約2時間〜約4時間維持することと
を含む請求項6から12のいずれかに記載の方法。 - 前記成形工程の前に、前記第2の粉末を篩分けすることを更に含む請求項6から13のいずれかに記載の方法。
- 前記第1の焼結工程の前に、前記第1の粉砕工程から得られる粉砕生成物を乾燥させることを更に含む請求項6から14のいずれかに記載の方法。
- 前記乾燥が、約60℃〜約80℃の温度で約10時間〜約20時間実施される請求項15に記載の方法。
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Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4952809A (ja) * | 1972-09-21 | 1974-05-22 | ||
JPH1050512A (ja) * | 1996-08-02 | 1998-02-20 | Kawasaki Steel Corp | 高透磁率酸化物磁性材料およびその製造方法 |
JPH1074612A (ja) * | 1996-08-30 | 1998-03-17 | Tokin Corp | 高透磁率酸化物磁性材料 |
JP2003109814A (ja) * | 2001-09-28 | 2003-04-11 | Nec Tokin Corp | 酸化物磁性材料 |
JP2005289667A (ja) * | 2004-03-31 | 2005-10-20 | Tdk Corp | MnZn系フェライト及びその製造方法 |
JP2005330126A (ja) * | 2004-05-18 | 2005-12-02 | Nec Tokin Corp | MnZnフェライト及びその製造方法 |
JP2008177242A (ja) * | 2007-01-16 | 2008-07-31 | Tdk Corp | 電波吸収体 |
JP2009152256A (ja) * | 2007-12-19 | 2009-07-09 | Nec Tokin Corp | MnZnフェライト |
JP2009196841A (ja) * | 2008-02-20 | 2009-09-03 | Nec Tokin Corp | MnZnフェライト及びMnZnフェライトコア |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3672161B2 (ja) * | 1997-07-16 | 2005-07-13 | Tdk株式会社 | フェライトの製造方法およびインダクタの製造方法 |
JPH1179785A (ja) * | 1997-09-03 | 1999-03-23 | Tdk Corp | 薄膜磁気ヘッド |
JP3389170B2 (ja) | 1999-10-12 | 2003-03-24 | ティーディーケイ株式会社 | NiMnZn系フェライト |
JP3889354B2 (ja) * | 2002-12-20 | 2007-03-07 | Tdk株式会社 | Mn−Zn系フェライト、トランス用磁心およびトランス |
CN1306542C (zh) | 2003-12-03 | 2007-03-21 | 横店集团东磁股份有限公司 | 方型偏转磁芯的制备方法及其材料 |
JP4195400B2 (ja) | 2004-02-13 | 2008-12-10 | 電気化学工業株式会社 | 電磁波吸収体の製造方法 |
CN1285545C (zh) | 2004-12-15 | 2006-11-22 | 横店集团东磁有限公司 | 软磁Mg-Zn铁氧体材料及其低温烧结工艺 |
CN100491569C (zh) | 2006-02-27 | 2009-05-27 | 乳源东阳光磁性材料有限公司 | 一种镁锌系铁氧体及其制备方法 |
EP2277838B1 (en) * | 2008-03-19 | 2014-01-22 | Hoya Corporation | Magnetic recording media substrates and magnetic recording media |
JP2010248031A (ja) * | 2009-04-16 | 2010-11-04 | Hoya Corp | 略板状ガラスの製造方法、プレス成型装置、情報記録媒体用基板の製造方法、情報記録媒体製造方法、および、光学部品の製造方法 |
CN102173762A (zh) * | 2010-12-13 | 2011-09-07 | 北矿磁材科技股份有限公司 | 用于注射成型的铁氧体吸波材料及其制备方法与磁性吸波器件 |
CN102211929A (zh) | 2011-03-23 | 2011-10-12 | 泰兴市中恒建筑装饰工程有限公司 | 一种低温烧结高磁导率NiCuZn铁氧体材料 |
CN103693951B (zh) * | 2013-09-02 | 2015-05-27 | 横店集团东磁股份有限公司 | 一种抗电磁干扰的锰锌铁氧体材料及其制备方法 |
CN104446408B (zh) | 2013-09-25 | 2016-12-07 | 比亚迪股份有限公司 | 一种吸波材料及其制备方法 |
CN103641464B (zh) * | 2013-11-07 | 2015-06-17 | 横店集团东磁股份有限公司 | 一种抗电磁干扰的镁锌铁氧体材料及其制备方法 |
-
2013
- 2013-09-25 CN CN201310441214.8A patent/CN104446408B/zh active Active
-
2014
- 2014-08-22 EP EP14850054.9A patent/EP3027578B1/en active Active
- 2014-08-22 JP JP2016516860A patent/JP6267788B2/ja not_active Expired - Fee Related
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-
2016
- 2016-03-08 US US15/064,504 patent/US10308555B2/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4952809A (ja) * | 1972-09-21 | 1974-05-22 | ||
JPH1050512A (ja) * | 1996-08-02 | 1998-02-20 | Kawasaki Steel Corp | 高透磁率酸化物磁性材料およびその製造方法 |
JPH1074612A (ja) * | 1996-08-30 | 1998-03-17 | Tokin Corp | 高透磁率酸化物磁性材料 |
JP2003109814A (ja) * | 2001-09-28 | 2003-04-11 | Nec Tokin Corp | 酸化物磁性材料 |
JP2005289667A (ja) * | 2004-03-31 | 2005-10-20 | Tdk Corp | MnZn系フェライト及びその製造方法 |
JP2005330126A (ja) * | 2004-05-18 | 2005-12-02 | Nec Tokin Corp | MnZnフェライト及びその製造方法 |
JP2008177242A (ja) * | 2007-01-16 | 2008-07-31 | Tdk Corp | 電波吸収体 |
JP2009152256A (ja) * | 2007-12-19 | 2009-07-09 | Nec Tokin Corp | MnZnフェライト |
JP2009196841A (ja) * | 2008-02-20 | 2009-09-03 | Nec Tokin Corp | MnZnフェライト及びMnZnフェライトコア |
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