CA2392381A1 - Fluide magnetique - Google Patents

Fluide magnetique Download PDF

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Publication number
CA2392381A1
CA2392381A1 CA002392381A CA2392381A CA2392381A1 CA 2392381 A1 CA2392381 A1 CA 2392381A1 CA 002392381 A CA002392381 A CA 002392381A CA 2392381 A CA2392381 A CA 2392381A CA 2392381 A1 CA2392381 A1 CA 2392381A1
Authority
CA
Canada
Prior art keywords
particles
magnetic
fluid medium
ferri
ferro
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.)
Abandoned
Application number
CA002392381A
Other languages
English (en)
Inventor
Eric Mayes
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.)
NanoMagnetics Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2392381A1 publication Critical patent/CA2392381A1/fr
Abandoned 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
    • H01F1/42—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of organic or organo-metallic materials, e.g. graphene
    • 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
    • H01F1/0036—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties showing low dimensional magnetism, i.e. spin rearrangements due to a restriction of dimensions, e.g. showing giant magnetoresistivity
    • H01F1/0045—Zero dimensional, e.g. nanoparticles, soft nanoparticles for medical/biological use
    • H01F1/0054—Coated nanoparticles, e.g. nanoparticles coated with organic surfactant
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance

Landscapes

  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Lubricants (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

L'invention concerne un milieu à fluide magnétique comprenant plusieurs particules ferro- ou ferri-magnétiques, chacune des ces particules possédant une dimension ne dépassant pas 100 nm. Lesdites particules sont préparées selon un procédé dont une des étapes consiste à former les particules dans une coque macromoléculaire organique.
CA002392381A 1999-11-25 2000-11-27 Fluide magnetique Abandoned CA2392381A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9927911.9 1999-11-25
GBGB9927911.9A GB9927911D0 (en) 1999-11-25 1999-11-25 Magnetic fluid
PCT/GB2000/004517 WO2001039217A1 (fr) 1999-11-25 2000-11-27 Fluide magnetique

Publications (1)

Publication Number Publication Date
CA2392381A1 true CA2392381A1 (fr) 2001-05-31

Family

ID=10865154

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002392381A Abandoned CA2392381A1 (fr) 1999-11-25 2000-11-27 Fluide magnetique

Country Status (10)

Country Link
EP (1) EP1232503A1 (fr)
JP (1) JP2003515921A (fr)
KR (1) KR20030007383A (fr)
CN (1) CN1399783A (fr)
AU (1) AU2380801A (fr)
BR (1) BR0015816A (fr)
CA (1) CA2392381A1 (fr)
GB (1) GB9927911D0 (fr)
MX (1) MXPA02005229A (fr)
WO (1) WO2001039217A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100490472B1 (ko) * 2002-06-04 2005-05-19 충남대학교산학협력단 자성유체를 이용한 탄소 나노튜브의 합성방법
GB2393729A (en) * 2002-10-04 2004-04-07 Nanomagnetics Ltd Semiconductor nanoparticles
GB2393728A (en) * 2002-10-04 2004-04-07 Nanomagnetics Ltd Magnetic nanoparticles
ES2304096B1 (es) * 2003-11-26 2009-05-07 Hoeganaes Corporation Suspensiones de composiciones de polvos metalurgicos y articulos y metodos que utilizan dichas composiciones.
JP3912391B2 (ja) 2004-05-26 2007-05-09 ソニー株式会社 金属磁性ナノ粒子群及びその製造方法
EP1646057A2 (fr) 2004-10-09 2006-04-12 European Central Bank Document de securité ayant la possibilité de stockage de données, et procédé et appareil pour lire et écrire cettes données
EP1646056A1 (fr) * 2004-10-09 2006-04-12 European Central Bank Document de securité ayant la possibilité de stockage de données, et procédé et appareil pour lire et écrire cettes données
CN103338615B (zh) * 2013-06-14 2016-05-18 成都艾迈计算机辅助工程有限责任公司 一种降低噪音的冷却装置及方法
EP2915991A1 (fr) * 2014-03-07 2015-09-09 Continental Automotive GmbH Soupape d'injection de fluide à commande électromagnétique
CN105845496B (zh) * 2016-05-24 2018-01-30 汕头大学 一种磁性流体行程开关及其组合方法
CN105869930B (zh) * 2016-05-24 2018-05-18 汕头大学 一种磁流体微型控制旋钮及其组合方法
CN105845497B (zh) * 2016-05-24 2018-04-24 汕头大学 一种带有铜纳米颗粒的磁流体开关及分布式组合方法
DE102019219262B4 (de) * 2019-12-10 2022-08-04 Robert Bosch Gmbh Sensoreinrichtung, Datenerfassungssystem und Verfahren zur Auswertung von Arbeitsabläufen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5512332A (en) * 1985-10-04 1996-04-30 Immunivest Corporation Process of making resuspendable coated magnetic particles
NL1008528C2 (nl) * 1998-03-09 1999-09-10 Univ Utrecht Ferromagnetische deeltjes.

Also Published As

Publication number Publication date
GB9927911D0 (en) 2000-01-26
BR0015816A (pt) 2002-07-16
JP2003515921A (ja) 2003-05-07
MXPA02005229A (es) 2003-09-25
AU2380801A (en) 2001-06-04
EP1232503A1 (fr) 2002-08-21
KR20030007383A (ko) 2003-01-23
WO2001039217A1 (fr) 2001-05-31
CN1399783A (zh) 2003-02-26

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