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What is a ferrite magnet? How to make ferrite magnet?
Ferrite permanent magnets are more commonly referred to as ceramic magnet. They are obtained from iron oxides and from strontium or barium carbonate: these raw materials are generous on Earth, so availability of ferrite is rather high.
First development of ferrite magnet started in the 40’s, but they have been offering in the market since the 50’s.
Ferrite magnets are obtained from iron oxides and from strontium or barium carbonate: these raw materials are generous on Earth, so availability of ferrite is rather high.
The raw materials are mixed together, granulated and thermally treated to get finally hexaferrite phase (SrFe12O19 or BaFe12O19). This granulate is then ground to a powder.Pressing can be performed under magnetic field (to maximize anisotropy of the magnet) or not (isotropic ferrite magnets) and can be wet or dry.
Features & Benefits
Raw material is readily available and low in cost
Relatively brittle & hard
Easy to magnetize and good resistance to demagnetization
Excellent corrosion resistance
Good temperature stability
high coercive force and high electric resistance
Most widely used permanent magnets
Hard ferrite magnet has a wide variety of applications: Speaker Magnets, DC Motors, Sweepers, Magnetic Separators for ferrous materials, Automotive Sensors, Reed Switching, Hall Effect Devices, in Assemblies such as (separating, holding, lifting, retrieving, and latching), Fridge Magnets and Arts and Crafts as well as many other novelty applications.
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Main Product:
Permanent Ferrite Magnets,
Isotropic Ferrite Magnets,
Anisotropic Ferrite Magnets,
Anisotropic Ferrite Magnet Rotor,
Isotropic Multipole Magnetic Rotor ,
Sintered Neodymium Magnets
