Alnico magnets are a type of permanent magnet made primarily from aluminium, nickel, and cobalt, which is where the name AlNiCo comes from. These magnets were among the first widely used strong permanent magnets before rare-earth magnets such as neodymium became common.
Neodymium magnets, often referred to as NdFeB magnets, are the strongest type of permanent magnet commercially available today. They are made from an alloy of neodymium, iron, and boron, which creates an extremely powerful magnetic field relative to the magnet’s size.
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