01-10-2012, 01:20 PM
FERROFLUIDS:CONCEPT & APPLICATION
FERROFLUIDS.pptx (Size: 1.07 MB / Downloads: 24)
CONCEPT
Magnetic particles bound together cannot flow.
If they are seperated by a surfactant i.e. in this case long chained coumpunds e.g oleic acid and a base compund e.g oil,water they begin to act like magnetic fluids
Unique Properties
Stick to Magnets
Take on 3-Dimensional Shape of a
Magnetic Field
Change Density in Proportion to
Magnetic Field Strength
Applications
Inks
money
Biomedical
attach drugs to magnetic particles,
proposed artificial heart
Damping
speakers, graphic plotters, instrument
gauges
Seals
gas lasers, motors, blowers, hard drives
Frictionless contact
Ferrofluids are advantageous
Over lubricating oils as
A large amount of oil is reguired to lubricate large areas
But with ferrofluids not only
Act as lubricants but also
Stick to the magnetic
Machine element
APPLICATIONS
Magnetic seals for shafts
That are frictionless and can
Used in seperation of two mediums of operation
FUTURE SCOPE
1.In military armour such that with a click of a button a soldiers suit with turn from flexible clothing to something as hard a rock
2. Scientists are now exploring the possibility of injecting ferrofluids in tumors and destroying them by appliying magnetic fields
3.Experiments are also conducted to use ferrofluids in space as a means of transporting materials in zero gravity.
FERROFLUIDS.pptx (Size: 1.07 MB / Downloads: 24)
CONCEPT
Magnetic particles bound together cannot flow.
If they are seperated by a surfactant i.e. in this case long chained coumpunds e.g oleic acid and a base compund e.g oil,water they begin to act like magnetic fluids
Unique Properties
Stick to Magnets
Take on 3-Dimensional Shape of a
Magnetic Field
Change Density in Proportion to
Magnetic Field Strength
Applications
Inks
money
Biomedical
attach drugs to magnetic particles,
proposed artificial heart
Damping
speakers, graphic plotters, instrument
gauges
Seals
gas lasers, motors, blowers, hard drives
Frictionless contact
Ferrofluids are advantageous
Over lubricating oils as
A large amount of oil is reguired to lubricate large areas
But with ferrofluids not only
Act as lubricants but also
Stick to the magnetic
Machine element
APPLICATIONS
Magnetic seals for shafts
That are frictionless and can
Used in seperation of two mediums of operation
FUTURE SCOPE
1.In military armour such that with a click of a button a soldiers suit with turn from flexible clothing to something as hard a rock
2. Scientists are now exploring the possibility of injecting ferrofluids in tumors and destroying them by appliying magnetic fields
3.Experiments are also conducted to use ferrofluids in space as a means of transporting materials in zero gravity.