Samarium cobalt magnets (SmCo) are composed of samarium, cobalt and iron. These rare earth magnets are extremely strong for their small size, metallic in appearance and found in simple shapes such as rings, blocks and discs.

Attributes of Samarium Cobalt Material

 High resistance to demagnetization

 High Energy Product

Good temperature stability

High resistance of corrosion and oxidation

Expensive material (cobalt is market price sensitive)

Applications of Samarium Cobalt Magnets:

Computer disc drives

Sensors

Radar

Traveling wave tubes

Satellite systems

Motors where temporary stability is vital