Neodymium magnet is one type of rare earth magnets which can be seen in many daily goods including headset, voice coil motor, guitars, speakers, Halbach
In the rare earth functional materials industry, high-performance neodymium permanent magnets are mainly used. Neodymium magnets are mainly used in high-end applications such as new
In general, the magnetic induction near permanent magnets (AlNiCo alloy magnets, ferrite magnets, etc.) is about 0.4-0.7 tesla. But rare earth magnets (neodymium magnets, samarium
The sintered NdFeB permanent magnets of 1cm 3 will be oxidized and corroded when they are left in air at 150 C for 51 days.
Today, mobile phones, headsets, and other devices are made so small that they can’t be separated from high-performance permanent magnets. So how are these magnets