1. General Information
1.1 The Different Types of Permanent Magnets
Today, there are several families of materials that account for the vast majority of applications in the permanent magnet market
These families, in the order in which they appeared on the market, are: Alnico, hard ferrites, samarium-cobalt, neodymium-iron-boron, and samarium-iron-nitrogen.
Alnico, an alloy based on aluminum, nickel, cobalt, and iron, first appeared in the 1930s....
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