SmCo magnets , also called SmCo magnetic steel , one kind of Rare Earth Permanent materials ,
made from raw earth metal samarium and cobalt, with iron , copper , zirconium, praseodymium and
othermetal elements in certain proportions , by melting , milling , shaping , sintering processes.
Samarium Cobalt magnets (SmCo) currently fall into two families of materials, they are SmCo5 and Sm2Co17.
Features:
1. High energy product.
2. Excellent coercive force
3. Low temperature coefficient , stable against temperature change
4. Good resistance to demagnetization, stability in high temperatures and excellent conduction, as well as allow unique design. When working at above 180 degree centigrade, its maximum energy product BH and temperature stability are superior than NdFeB magnet.
5. Excellent resistance to corrosion, no coating is needed for the surface protecting
6. Raw material Sm is low, so the price for SmCo magnets are very high.
7. Brittle
8. Hardly to be demagnetized
APPLICATION: precision instrument and military
aerospace, defense industry, microwave devices, communications, medical equipment, instruments, wind power, a variety of magnetic drives, sensors, magnetic processor, high-end motor, etc.