Search results
Results from the WOW.Com Content Network
Due to ceramic ferrite magnet’s weaker magnetic fields compared to superconducting magnets, they are sometimes used in low-field or open MRI systems. [41] [42] These magnets are favored in certain cases due to their lower cost, stable magnetic field, and ability to function without the need for complex cooling systems. [43]
Schematic of a permanent magnet motor using brushes and magnets in the stator. A permanent magnet motor is a type of electric motor that uses permanent magnets for the field excitation and a wound armature. The permanent magnets can either be stationary or rotating; interior or exterior to the armature for a radial flux machine or layered with ...
Ferrimagnetic ordering Magnetic orders: comparison between ferro, antiferro and ferrimagnetism Ferrite magnets. Ferrite, a ceramic compound, is one of the most common examples of a ferrimagnetic material. A ferrimagnetic material is a material that has populations of atoms with opposing magnetic moments, as in antiferromagnetism, but these ...
The ferrite magnets are mainly low-cost magnets since they are made from cheap raw materials: iron oxide and Ba- or Sr-carbonate. However, a new low cost magnet, Mn–Al alloy, [38] [non-primary source needed] [44] [45] has been developed and is now dominating the low-cost magnets field.
Permanent magnets are made from hard ferromagnetic materials (such as alnico) and ferrimagnetic materials (such as ferrite) that are subjected to special processing in a strong magnetic field during manufacturing to align their internal microcrystalline structure, making them difficult to demagnetize. To demagnetize a saturated magnet, a ...
Magnadur is a sintered barium ferrite, specifically BaFe 12 O 19 in an anisotropic form. [1] It is used for making permanent magnets. The material was invented by Mullard and was used initially particularly for focussing rings on cathode-ray tubes. Magnadur magnets retain their magnetism well, and are often used in education.
What links here; Related changes; Upload file; Special pages; Permanent link; Page information; Cite this page; Get shortened URL; Download QR code
Barium ferrite, abbreviated BaFe, BaM, is a chemical compound with the formula BaFe 12 O 19 (BaO : 6 Fe 2 O 3). [1] This and related ferrite materials are components in magnetic stripe cards and loudspeaker magnets.