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Samarium Cobalt Magnets

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Samarium Cobalt Magnets

1. Advantages and disadvantages of samarium cobalt magnets


advantage:


1. High magnetic strength: up to about 32MGOe.
2. Can operate at temperatures up to about 300°C.
3. No need for surface coating treatment.


shortcoming:


1. Very brittle and difficult to process.
2. Since this material contains cobalt, the cost is relatively high.


2. Corrosion resistance of samarium cobalt magnets


Since most grades of samarium cobalt magnets contain little or no iron, which gives them excellent corrosion resistance, neodymium magnets typically contain 60-75% iron. Therefore, SmCo magnets generally do not require electroplating.


3. Magnetic properties of samarium cobalt magnets


Compared with NdFeB magnets, the magnetic properties are not as good as SmCo magnets, but they are stronger than ordinary ferrites, equivalent to low-grade NdFeB magnets.


4. Application field of samarium cobalt magnet


SmCo magnets are widely used in aerospace, defense and military industries, microwave devices, communication equipment, medical equipment, instruments, sensors, motors, magnetic cranes, etc.

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