What is the composition of NdFeB magnet - magnets

There are also two major categories of permanent magnetic materials:




The first category is: alloy permanent magnets, including rare earth permanent magnets (NdFeB Nd2Fe14B), SM CO (SmCo), neodymium nickel cobalt (NdNiCO).




The second category is ferrite permanent magnet (Ferrite).




According to the production process, the sintered ferrite (Sintered Ferrite), the bonded ferrite (rubber magnetic Rubber Magnet), the injection ferrite, (Zhusu Ferrite), (Zhusu Ferrite), are divided into isotropic and isotropic magnets according to the different orientation of magnetic crystals.




These are the main permanent magnets on the market, and some of them are eliminated because of their original or cost reasons, such as Cu-Ni-Fe (Tong Nietie), Fe-Co-Mo (Tie Gumu), Fe-Co-V (Tie Gufan), MnBi (manganese bismuth), AlMnC (Co Mn and C).