Rare earth permanent magnets for motors 2020-11-25
When high-temperature stability is required, Sm–Co is the material of choice, and Sm–Fe–N magnets are entering some special applications. The scope of improvement of these basic materials through substitution has been quite comprehensively explored, and the influence of processing technology on the microstructure and hysteresis has been widely understood. A big idea a generation ago was the exchange-spring hard/soft nanocomposite magnet with directional potential, which has the real potential to greatly improve record-breaking energy products. However, this has proved difficult to achieve.
Read More