DE69802464D1 - Verfahren zur Herstellung von magnetischer Flüssigkeit - Google Patents

Verfahren zur Herstellung von magnetischer Flüssigkeit

Info

Publication number
DE69802464D1
DE69802464D1 DE69802464T DE69802464T DE69802464D1 DE 69802464 D1 DE69802464 D1 DE 69802464D1 DE 69802464 T DE69802464 T DE 69802464T DE 69802464 T DE69802464 T DE 69802464T DE 69802464 D1 DE69802464 D1 DE 69802464D1
Authority
DE
Germany
Prior art keywords
production
magnetic liquid
magnetic
liquid
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.)
Expired - Lifetime
Application number
DE69802464T
Other languages
English (en)
Other versions
DE69802464T2 (de
Inventor
Kuldip Raj
Lutful M Aziz
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.)
Ferrofluidics Corp
Original Assignee
Ferrofluidics 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
Application filed by Ferrofluidics Corp filed Critical Ferrofluidics Corp
Application granted granted Critical
Publication of DE69802464D1 publication Critical patent/DE69802464D1/de
Publication of DE69802464T2 publication Critical patent/DE69802464T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H01F1/445—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 compound, e.g. Fe3O4
    • 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
    • Y10S977/00—Nanotechnology
    • Y10S977/70—Nanostructure
    • Y10S977/773—Nanoparticle, i.e. structure having three dimensions of 100 nm or less
    • Y10S977/775—Nanosized powder or flake, e.g. nanosized catalyst
    • 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
    • Y10S977/00—Nanotechnology
    • Y10S977/70—Nanostructure
    • Y10S977/832—Nanostructure having specified property, e.g. lattice-constant, thermal expansion coefficient
    • Y10S977/838—Magnetic property of nanomaterial

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Soft Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
DE69802464T 1997-02-21 1998-02-18 Verfahren zur Herstellung von magnetischer Flüssigkeit Expired - Lifetime DE69802464T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3741697P 1997-02-21 1997-02-21
US09/021,228 US5958282A (en) 1997-02-21 1998-02-10 Low cost method for manufacturing ferrofluid

Publications (2)

Publication Number Publication Date
DE69802464D1 true DE69802464D1 (de) 2001-12-20
DE69802464T2 DE69802464T2 (de) 2002-06-27

Family

ID=26694446

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69802464T Expired - Lifetime DE69802464T2 (de) 1997-02-21 1998-02-18 Verfahren zur Herstellung von magnetischer Flüssigkeit

Country Status (3)

Country Link
US (1) US5958282A (de)
EP (1) EP0880149B1 (de)
DE (1) DE69802464T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6140001A (en) * 1999-05-04 2000-10-31 Mitsui Mining & Smelting Co., Ltd. Iron oxide microparticles and a process for producing them
AU2002311885A1 (en) * 2001-05-03 2002-11-18 Colorado School Of Mines Devices employing colloidal-sized particles
US8714967B2 (en) * 2010-02-19 2014-05-06 Roy Lee Garrison High velocity burner apparatus and method
DE102011100602A1 (de) 2011-05-05 2012-11-08 Li-Tec Battery Gmbh Kühlvorrichtung und Verfahren zur Kühlung eines elektrochemischen Energiespeichers
US9943092B1 (en) * 2014-12-22 2018-04-17 Roy Lee Garrison Liquid processing system and method
RU2608417C1 (ru) * 2015-11-25 2017-01-18 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Северный (Арктический) федеральный университет имени М.В. Ломоносова" (САФУ) Пептизатор для синтеза магнитоактивной жидкости на водной основе
NL2023082B1 (en) 2019-05-07 2020-11-23 Urban Mining Corp Bv Ferrofluid

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3917538A (en) * 1973-01-17 1975-11-04 Ferrofluidics Corp Ferrofluid compositions and process of making same
US4094804A (en) * 1974-08-19 1978-06-13 Junzo Shimoiizaka Method for preparing a water base magnetic fluid and product
US4089779A (en) * 1975-11-24 1978-05-16 Georgia-Pacific Corporation Clarification process
FR2498587A1 (fr) * 1980-12-16 1982-07-30 Aimants Ugimag Sa Procede de preparation de composes magnetiques par mecano-chimie
US5240626A (en) * 1990-09-21 1993-08-31 Minnesota Mining And Manufacturing Company Aqueous ferrofluid
JPH04335502A (ja) * 1991-05-10 1992-11-24 Nok Corp 黒色顔料用磁性流体
JPH10506365A (ja) * 1994-10-04 1998-06-23 ジ オーストラリアン ナショナル ユニバーシティー 活性ボール・ミリングを使用した金属酸化物粉体の作成

Also Published As

Publication number Publication date
US5958282A (en) 1999-09-28
EP0880149B1 (de) 2001-11-14
EP0880149A1 (de) 1998-11-25
DE69802464T2 (de) 2002-06-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: WUESTHOFF & WUESTHOFF PATENT- UND RECHTSANWAELTE,