A ferrite magnet is a metal oxide with ferromagnetism. The magnetic properties of ferrite are also shown to have high permeability at high frequencies.
Neodymium(NdFeB) magnets are the strongest type of rare earth magnet commercially available and are manufactured in a wide range of shapes, sizes and grades.
Halbach Array is a magnet structure, an engineering approximation of the ideal structure, whose goal is to produce the strongest magnetic field with the least amount of magnets.
Samarium cobalt magnet is mainly made of Cobalt,Samarium and other rare earth elements.Its advantage is the maximum operating temperature up to 350 ° C and its good corrosion and oxidation resistance.Samarium cobalt magnets, therefore do not need to be coated.lt is widely used in motors, meters,sensors,detectors, engine, radar and other high-tech fields.