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Samarium Cobalt (SmCo) magnets 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.SmCo magnets are available in a number of different grades that span a wide range of properties and application requirements.
Applications of samarium cobalt magnets:
Computer disc drives,Sensors,Traveling wave tubes,Linear actuators,Satellite systems,Motors where temporary stability is vital.
Computer disc drives,Sensors,Traveling wave tubes,Linear actuators,Satellite systems,Motors where temporary stability is vital.
Attributes of Samarium Cobalt Magnet:
High resistance to demagnetization;High energy (magnetic strength is strong for its size);Good temperature stability;Expensive material (cobalt is market price sensitive).
High resistance to demagnetization;High energy (magnetic strength is strong for its size);Good temperature stability;Expensive material (cobalt is market price sensitive).
Surface Treatments of samarium cobalt magnets:
The corrosion resistance of samarium cobalt magnets are considered good while that of NdFeB is considered poor. Coatings for corrosion resistance are therefore not generally required for samarium cobalt magnets
Machining of samarium cobalt magnets:
Samarium cobalt magnets are extremely brittle, and highly prone to chipping and cracking. Special machining techniques, involving diamond-grinding techniques, must be used to machine this material.
Temperature Effects of samarium cobalt magnets:
Samarium cobalt magnets can operate at temperatures up to 350
C , depending upon the grade and permeance coefficient. Sm2Co17 materials exhibit superior temperature characteristics as compared to the Sm1Co5 types.
C , depending upon the grade and permeance coefficient. Sm2Co17 materials exhibit superior temperature characteristics as compared to the Sm1Co5 types.Magnetic and Physical Characteristics is attached.
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