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 Magnet
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Raw materials for such magnets are abundant and inexpensive.
Hard Ferrite Magnets have become the most widely specified
magnetic materials.
They are made isotropic or anisotropic.
Anisotropic magnets are compressed in a magnetic field, resulting
in one preferred direction of magnetization.
Isotropic magnets are not oriented during manufacture and
can be magnetized in several directions. |
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Ferrite
Exhibits an excellent energy product and have a
high temperature coefficient.
High electric resistance
Operating temperature range: -40°C up to +200°C
Very hard and brittle, machining requires diamond
tools
Being oxides they do not corrode and are neither
affected by climatic influences nor by many
chemicals with the exception
of some strong acids
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Application
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Micro DC motors
Magnet for CD-ROMs
Receivers
Loudspeaker
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Water Pumps
Holding magnets
Reed switches
Hall-effect devices
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Magnetic Properties of Ferrite Magnets
Typical Demagnetization Cuive
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