Sintered Samarium Cobalt (SmCo) magnets are a highly sophisticated magnetic material composed primarily of samarium, cobalt, and select rare earth elements. It can be categorized into two main variants based on the proportion of its constituent elements: SmCo5 and Sm2Co17. As second-generation rare earth permanent magnets, SmCo magnets stand out for its exceptional magnetic properties, combining a notably high magnetic energy product and dependable coercivity.
What truly sets SmCo apart is its remarkable temperature resilience, a characteristic that surpasses other rare earth magnetic materials. In comparison to Neodymium Iron Boron (NdFeB), SmCo magnets are particularly well-suited for operating in high-temperature environments, comfortably exceeding 200°C. Furthermore, these magnets exhibit an inherent resistance to corrosion and oxidation, often obviating the need for additional protective coatings.