Ring Rare Earth Magnets/ samarium cobalt magnets

Sintered SmCo magnets, i.e. sintered samarium cobalt magnets, are those permanent magnetic materials that based on a hexagonal crystal structure (1:5 type SmCo magnets) or a rhombohedral crystal structure (2:17 type SmCo magnets), and they are manufactured through a powder metallurgy process. They contain two basic and cobalt. The samarium bstituted by a portion of other rare earth g praseodymium (Pr), cerium (Ce), gadolinium (Gd), erbium (Er), etc. The cobalt bstituted by a portion of iron (Fe) se the magnets’ saturation magnetization (Ms). In order to control the microstructure and the microchemistry so as to meet required performance, it is also critical to add a small portion of copper (Cu), zirconium (Zr), titanium (Ti), etc.