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3. Magnetic fluid applications
The original combination of liquid and magnetic properties means that magnetic fluids have many potential applications. Over the past twenty years, work has been carried out on a wide range of simple, single-phase magnetic fluids, in terms of both the nature of the solvent and the type of magnetic material dispersed in it.
One of the main applications for ferrofluids, or magnetic fluids in general, is in magnetically supported seals. A magnetic fluid held in place under the action of a magnetic field ensures both good lubrication and a perfect seal, particularly against gases. These magnetic seals are virtually indestructible, and can take on any geometric shape a permanent magnet can give them. Magnetic fluids are also widely used in electronics to protect computer hard disks, and in loudspeakers to dampen vibrations.
Organic magnetic fluids...
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Magnetic fluid applications
Bibliography
Events
Magnetism and Magnetic Materials Conference (MMM), an international conference held every year in the United States. http://www.magnetism.org/
Scientific and clinical applications of magnetic carriers, international congress held in even-numbered years http://www.magneticmicrosphere.com/
...Patents
ROSENWEIG (R.E.). – Ferrofluid compositions and process of making same. (US 3,917,538).
PAPELL (S.). – Low viscosity magnetic fluid obtained by the colloidal suspension of magnetic particles (US 3215572).
DANIEL (J.-C.) et al. – Magnetic polymer latex and preparation process (US 4,358,388).
ELAISSARI et al. – Superparamagnetic monodisperse particles...
Directory
Suppliers of magnetic particles for biomedical diagnostics
Ademtech http://www.ademtech.com/
Invitrogen GmbH http://www.invitrogen.com/
Merck Chimie SAS http://www.estapor.com/
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