SmCo magnets

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SmCo magnets
Posting date : Oct 21, 2010
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85-
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Samarium cobalt magnets (SmCo) currently fall into two families of materials.They are SmCo5 and Sm2Co17. SmCo5 is usually binary of ternary alloys with the approximate atomic ratio of one samarium atom to five cobalt atoms.Sm2Co17 is an age hardening type with a com-position ratio of 2 samarium atoms to 13-17 atoms of cobalt.   They are usually formed by sintering.Sintered SoCo magnet have the character of brittleness,lacking of the ductility,thus need to be handled carefully. Withstands corrosion exceptionally well,so no coating is needed for surface protection.    1.Attributes of Samarium Cobalt Material a.Extremely high magnetic properties b.High resistance to demagnetization c.Excellent corrosion resistance d.Outstanding thermal stability e.Expensive material (cobalt is market price sensitive) 2.Applications of Samarium Cobalt Magnets Computer disc drives Sensors Satellite systems Traveling wave tubes Watch Linear actuators Satellite systems Transducers Motors Positional detector Generators Servo-motors

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