Product Description
Ferrite magnets are a large class of magnets that include chemical
compounds such as hematite (Fe2 The first magnets that one is
exposed to as a child are likely to be ferrite magnets, as they are
the cheapest and most common. The stereotypical magnetic
interaction one typically sees is the interaction between a ferrite
magnet, usually magnetite, with iron filings. The resulting pattern
that the filings are pulled into reveals the shape of the magnetic
field produced by the magnet. The Earth itself produces a similar
magnetic field, though trillions of times larger and about *0,**0
times weaker.
Ferrite magnets, also known as ferromagnetic materials, are
generally classified into two categories based on their magnetic
coercivity, or persistence of internal magnetism: soft ferrites and
hard ferrites. These categorizations do not refer to the actual
hardness of the magnets *- both types are brittle ceramics *- but
rather their magnetic coercivity. Depending on whether a magnet is
soft or hard, it may have different applications. For instance, a
hard ferrite magnet might be used in a radio or a hard disk. A soft
ferrite magnetic would be used as a transformer core or an
electromagnet core.
The strength of a ferrite magnet, like any other magnet, can be
measured in teslas. One tesla represents one weber per square
meter, with a weber being a unit of magnetic flux such that it
would produce one volt of electricity if reduced to zero in one
second. Starting with the weaker magnetic fields and moving to
stronger: paramagnetic materials like aluminum or oxygen have a
magnetic field of about **0 nanoteslas, the strength of the Earth's
magnetic field is about *1 microteslas, the strength of a typical
refrigerator magnet is about 5 milliteslas, the strength of a bar
magnet is about *5 milliteslas, the strength of a loudspeaker
magnet is about 1 T to 2.4 teslas, and the strength of the most
powerful continuous magnetic field yet produced in a laboratory is
*5 teslas.
Country: |
China |
Model No: |
sinomake-Ferrite
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FOB Price: |
(Negotiable)
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Place of Origin: |
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Product Group : |
Ferrite magnet
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