TW200516609A - Ferrite material, ferrite sintered compact, and inductor - Google Patents

Ferrite material, ferrite sintered compact, and inductor

Info

Publication number
TW200516609A
TW200516609A TW093122124A TW93122124A TW200516609A TW 200516609 A TW200516609 A TW 200516609A TW 093122124 A TW093122124 A TW 093122124A TW 93122124 A TW93122124 A TW 93122124A TW 200516609 A TW200516609 A TW 200516609A
Authority
TW
Taiwan
Prior art keywords
ferrite
ferrite material
mol
inductor
absolute value
Prior art date
Application number
TW093122124A
Other languages
English (en)
Other versions
TWI303073B (en
Inventor
Kensaku Asakura
Takuya Aoki
Taku Murase
Original Assignee
Tdk Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP2004126257A external-priority patent/JP4183187B2/ja
Priority claimed from JP2004177292A external-priority patent/JP4107667B2/ja
Application filed by Tdk Corp filed Critical Tdk Corp
Publication of TW200516609A publication Critical patent/TW200516609A/zh
Application granted granted Critical
Publication of TWI303073B publication Critical patent/TWI303073B/zh

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/6261—Milling
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C01G49/0063—Mixed oxides or hydroxides containing zinc
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/009—Compounds containing, besides iron, two or more other elements, with the exception of oxygen or hydrogen
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G53/00—Compounds of nickel
    • C01G53/006—Compounds containing, besides nickel, two or more other elements, with the exception of oxygen or hydrogen
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/265—Compositions containing one or more ferrites of the group comprising manganese or zinc and one or more ferrites of the group comprising nickel, copper or cobalt
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C01P2002/54—Solid solutions containing elements as dopants one element only
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/88—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by thermal analysis data, e.g. TGA, DTA, DSC
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/32—Thermal properties
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3275—Cobalt oxides, cobaltates or cobaltites or oxide forming salts thereof, e.g. bismuth cobaltate, zinc cobaltite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3279—Nickel oxides, nickalates, or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3281—Copper oxides, cuprates or oxide-forming salts thereof, e.g. CuO or Cu2O
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3284—Zinc oxides, zincates, cadmium oxides, cadmiates, mercury oxides, mercurates or oxide forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5409—Particle size related information expressed by specific surface values
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5445—Particle size related information expressed by the size of the particles or aggregates thereof submicron sized, i.e. from 0,1 to 1 micron
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5463—Particle size distributions
    • C04B2235/5481—Monomodal
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/608—Green bodies or pre-forms with well-defined density
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
    • C04B2235/782—Grain size distributions
    • C04B2235/784—Monomodal
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
    • C04B2235/786—Micrometer sized grains, i.e. from 1 to 100 micron
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Magnetic Ceramics (AREA)
  • Soft Magnetic Materials (AREA)
TW093122124A 2003-09-03 2004-07-23 Ferrite material, ferrite sintered body, and inductor TWI303073B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2003311813 2003-09-03
JP2004126257A JP4183187B2 (ja) 2004-04-22 2004-04-22 フェライト焼結体
JP2004177292A JP4107667B2 (ja) 2003-09-03 2004-06-15 フェライト材料及びインダクタ素子

Publications (2)

Publication Number Publication Date
TW200516609A true TW200516609A (en) 2005-05-16
TWI303073B TWI303073B (en) 2008-11-11

Family

ID=34139392

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093122124A TWI303073B (en) 2003-09-03 2004-07-23 Ferrite material, ferrite sintered body, and inductor

Country Status (6)

Country Link
US (1) US7034649B2 (zh)
EP (1) EP1512668B1 (zh)
KR (1) KR100617494B1 (zh)
CN (1) CN100339335C (zh)
DE (1) DE602004025886D1 (zh)
TW (1) TWI303073B (zh)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2141137B1 (en) 2007-04-17 2017-08-09 Hitachi Metals, Ltd. Low-loss ferrite, and electronic component using the same
JP4640377B2 (ja) * 2007-05-30 2011-03-02 Ｔｄｋ株式会社 積層インダクタ部品
JP5549063B2 (ja) * 2007-08-31 2014-07-16 日立金属株式会社 フェライト材料及びフェライト材料の製造方法
JP5347973B2 (ja) * 2007-12-25 2013-11-20 日立金属株式会社 積層インダクタ及びこれを用いた電力変換装置
TWI416550B (zh) * 2008-06-24 2013-11-21 Chilisin Electronics Corp Composition and method of ferrite material with stable permeability
CN103493158B (zh) * 2011-04-25 2016-07-06 株式会社东芝 磁性片和使用其的非接触受电装置、电子设备及非接触充电装置
CN102982965B (zh) * 2011-09-02 2015-08-19 株式会社村田制作所 共模扼流线圈及其制造方法
CN103000326A (zh) * 2011-09-09 2013-03-27 丹凤县荣毅电子有限公司 镍锌铁氧体磁屏蔽电感器产品及其制造方法
US9669431B2 (en) 2011-12-28 2017-06-06 Organix Solutions, Llc Compostable organic waste collection method and materials
CN102718472A (zh) * 2012-05-30 2012-10-10 广东风华高新科技股份有限公司 一种低温烧结多层片式电感用软磁铁氧体材料及其制备方法
KR102018411B1 (ko) * 2012-10-31 2019-09-04 도다 고교 가부시끼가이샤 페라이트 소결판 및 페라이트 소결 시트
JP6142950B1 (ja) * 2016-09-30 2017-06-07 Tdk株式会社 フェライト組成物および電子部品
CN110418774B (zh) * 2017-03-15 2022-09-13 日立金属株式会社 Ni系铁氧体烧结体、线圈部件及Ni系铁氧体烧结体的制造方法
EP3641057B1 (en) * 2017-06-13 2024-02-14 Proterial, Ltd. Coil device and antenna

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5910565B2 (ja) 1980-07-05 1984-03-09 ティーディーケイ株式会社 透磁率の温度係数が負となる磁性材料
JPH01228108A (ja) 1988-03-09 1989-09-12 Tokin Corp Ｎｉ−Ｃｕ−Ｚｎ系酸化物磁性材料とその製造方法
JP2679716B2 (ja) 1990-01-25 1997-11-19 株式会社村田製作所 フェライトコア焼成用材料
JPH0732095B2 (ja) 1991-04-23 1995-04-10 日立フェライト株式会社 耐熱衝撃フェライト材料
JPH053112A (ja) 1991-06-24 1993-01-08 Murata Mfg Co Ltd 酸化物磁性材料
JP3147496B2 (ja) * 1992-05-25 2001-03-19 株式会社村田製作所 フェライト材料
JP3405630B2 (ja) 1994-12-26 2003-05-12 京セラ株式会社 フェライト材料
US5906768A (en) * 1996-04-03 1999-05-25 Tdk Corporation Ferrite magnetic material, and ferrite core
JP3181560B2 (ja) * 1998-10-23 2001-07-03 ティーディーケイ株式会社 フェライト酸化物磁性材料
JP3947343B2 (ja) * 2000-06-05 2007-07-18 Ｔｄｋ株式会社 磁性フェライト材料
JP3635016B2 (ja) * 2000-08-21 2005-03-30 Ｔｄｋ株式会社 フェライト材料
JP3487552B2 (ja) * 2000-08-28 2004-01-19 Ｔｄｋ株式会社 フェライト材料
DE60129568T2 (de) * 2000-08-21 2008-04-17 Tdk Corp. Ferritmaterial
JP4668404B2 (ja) * 2000-10-26 2011-04-13 Ｔｄｋ株式会社 磁性材料とその磁性材料を用いたコイル部品
CN1304905A (zh) * 2000-10-30 2001-07-25 广东肇庆风华电子工程开发有限公司 低温烧结材料
CN1210728C (zh) * 2000-10-30 2005-07-13 广东肇庆风华电子工程开发有限公司 低温烧结电感器材料

Also Published As

Publication number Publication date
KR20050025264A (ko) 2005-03-14
EP1512668A1 (en) 2005-03-09
EP1512668B1 (en) 2010-03-10
KR100617494B1 (ko) 2006-09-04
US20050062576A1 (en) 2005-03-24
CN100339335C (zh) 2007-09-26
DE602004025886D1 (de) 2010-04-22
TWI303073B (en) 2008-11-11
CN1590343A (zh) 2005-03-09
US7034649B2 (en) 2006-04-25

Similar Documents

Publication Publication Date Title
TW200516609A (en) Ferrite material, ferrite sintered compact, and inductor
CN106587977B (zh) 一种功率型镍锌铁氧体材料及其制备方法
CN1677579B (zh) 宽频锰锌系高磁导率软磁铁氧体材料
EP1314697A4 (en) MATERIAL IN FERRITE
EP1953123A4 (en) MAGNETIC MATERIAL ON OXID BASE, MANUFACTURING METHOD, SINTERED FERRITE MAGNET AND MANUFACTURING METHOD THEREFOR
CN100368341C (zh) 频率特性优异的高磁导率锰锌系铁氧体及其制备方法
KR100436639B1 (ko) 페라이트 소결체
EP1661869A3 (en) Ferrite material and electronic component using same
EP1286366A3 (en) Mn-Zn ferrite and coil component with magnetic core made of same
US6440323B1 (en) Mn-Zn ferrite and production process thereof
CN109485403A (zh) 一种高Bs低损耗软磁铁氧体材料及其制备方法
EP1279651A3 (en) Magnetic core for transformer, Mn-Zn based ferrite composition and methods of producing the same
IL120061A (en) Ceramic composition for absorbing electromagnetic waves and a method for manufacturing the same
TW200506975A (en) Ni-Zn ferrite low temperature sintered leadfree flux composition
CN106278228A (zh) 宽温宽频的磁锰锌铁氧体及其制备方法
EP1078901A3 (en) Magnetic ferrite material and manufacture method thereof
EP1138648A3 (en) Mn-Zn ferrite and production process thereof
JP2005330126A (ja) ＭｎＺｎフェライト及びその製造方法
EP1447825A3 (en) Mn-Zn ferrite containing less than 50 mol% Fe2O3
CN100344572C (zh) 高叠加性能锰锌系铁氧体及其制备方法
US6858155B1 (en) Ferrite materials, methods of preparing the same, and products formed therefrom
KR100468082B1 (ko) ＭｎＭｇＣｕＺｎ 페라이트 재료
DE60115957D1 (de) Dielektrische keramische zusammensetzung für mikrowellenanwendungen
EP1447826A2 (en) Mn-Zn ferrite containing less than 50 mol% Fe2O3
EP2982651A1 (en) Compositions and materials for electronic applications

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees