How SmCo and Neo Magnets are Made
There are several processes for making magnets, however, the most typical technique is named Powder Metallurgy. On this course of, an appropriate composition is pulverized into fine powder, compacted and heated to trigger densification by way of “liquid part sintering”. Subsequently, these magnets are most frequently known as sintered magnets. Ferrite, Samarium Cobalt (SmCo) and neodymium-iron-boron (neo) magnets are all made by this technique. Not like ferrite, which is a ceramic material, all the rare earth magnets are metallic alloys.