DE2148554A1 - Verfahren zur Herstellung eines polykristallinen Ferritkoerpers - Google Patents

Verfahren zur Herstellung eines polykristallinen Ferritkoerpers

Info

Publication number
DE2148554A1
DE2148554A1 DE19712148554 DE2148554A DE2148554A1 DE 2148554 A1 DE2148554 A1 DE 2148554A1 DE 19712148554 DE19712148554 DE 19712148554 DE 2148554 A DE2148554 A DE 2148554A DE 2148554 A1 DE2148554 A1 DE 2148554A1
Authority
DE
Germany
Prior art keywords
sintering
ferrite
temperature
added
takes place
Prior art date
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.)
Pending
Application number
DE19712148554
Other languages
German (de)
English (en)
Inventor
Laan Karel Van Der
Peloschek Hans Peter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 NL7014697A external-priority patent/NL7014697A/xx
Priority claimed from NL7111359A external-priority patent/NL7111359A/xx
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of DE2148554A1 publication Critical patent/DE2148554A1/de
Pending legal-status Critical Current

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
    • C04B35/01—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
    • C04B35/2658—Other ferrites containing manganese or zinc, e.g. Mn-Zn ferrites
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/58—Processes of forming magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)
DE19712148554 1970-10-07 1971-09-29 Verfahren zur Herstellung eines polykristallinen Ferritkoerpers Pending DE2148554A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7014697A NL7014697A (en) 1970-10-07 1970-10-07 Polycrystalline ferrites - contg grain growth promoters added before sintering
NL7111359A NL7111359A (en) 1971-08-18 1971-08-18 Polycrystalline ferrites - contg grain growth promoters added before sintering

Publications (1)

Publication Number Publication Date
DE2148554A1 true DE2148554A1 (de) 1972-04-13

Family

ID=26644585

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712148554 Pending DE2148554A1 (de) 1970-10-07 1971-09-29 Verfahren zur Herstellung eines polykristallinen Ferritkoerpers

Country Status (8)

Country Link
US (1) US3837910A (Direct)
JP (1) JPS5229439B1 (Direct)
AT (1) AT313600B (Direct)
BE (1) BE773528A (Direct)
CA (1) CA975154A (Direct)
DE (1) DE2148554A1 (Direct)
FR (1) FR2111100A5 (Direct)
GB (1) GB1369493A (Direct)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6909395B1 (en) * 1975-04-10 2005-06-21 The United States Of America As Represented By The Secretary Of The Air Force Radar absorbing coatings
US4521323A (en) * 1984-06-27 1985-06-04 Matsushita Electric Industrial Co., Ltd. Polycrystalline ferrite and a magnetic head using the same
JPS63319253A (ja) * 1987-06-19 1988-12-27 Mitsubishi Electric Corp 低損失酸化物磁性材料
GB2220935B (en) * 1988-07-18 1992-12-23 Mitsubishi Electric Corp Magnetic oxide material
US5028348A (en) * 1988-12-19 1991-07-02 Murata Manufacturing Co., Ltd. Magnetic material for high frequencies
US5645774A (en) * 1989-09-19 1997-07-08 Ferronics Incorporated Method for establishing a target magnetic permeability in a ferrite
JPH05114110A (ja) * 1991-10-22 1993-05-07 Hitachi Metals Ltd 磁歪振動ノイズを減少させた浮上型磁気ヘツド
JP3635410B2 (ja) * 1992-12-28 2005-04-06 Ｔｄｋ株式会社 マンガン−亜鉛系フェライトの製造方法
JP3743795B2 (ja) 1999-09-17 2006-02-08 Ｔｄｋ株式会社 マンガン−亜鉛系フェライトの製造方法
US6993394B2 (en) * 2002-01-18 2006-01-31 Calfacion Corporation System method and apparatus for localized heating of tissue
US7048756B2 (en) * 2002-01-18 2006-05-23 Apasara Medical Corporation System, method and apparatus for evaluating tissue temperature
US7450344B2 (en) * 2003-11-12 2008-11-11 Intri-Plex Technologies, Inc. Remelted Magnetic head support structure in a disk drive

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992990A (en) * 1956-01-05 1961-07-18 Richard G Parker Soft magnetic material
US3002930A (en) * 1956-12-03 1961-10-03 Philips Corp Process of making a ferromagnetic body
NL6904352A (Direct) * 1969-03-20 1970-09-22

Also Published As

Publication number Publication date
FR2111100A5 (Direct) 1972-06-02
GB1369493A (en) 1974-10-09
AT313600B (de) 1974-02-25
CA975154A (en) 1975-09-30
BE773528A (fr) 1972-04-05
JPS5229439B1 (Direct) 1977-08-02
US3837910A (en) 1974-09-24

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Legal Events

Date Code Title Description
OHW Rejection