What Are the Properties and Applications of SmCo Magnets?
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What Are the Properties and Applications of SmCo Magnets?

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SmCo magnets are a kind of rare earth magnet, a magnetic tool material of samarium, cobalt and other rare earth metals by proportioning, melting into alloys, crushing, pressing and sintering.

  • What are the properties and applications of SmCo magnets?

  • What is the use value of SmCo magnets?

  • What are the characteristics of SmCo magnets?

What are the properties and applications of SmCo magnets?

1.High magnetic properties (high remanence, high coercive force, high magnetic energy product), the magnetic properties of SmCo magnets at room temperature reach 35 MGOe, which is only lower than NdFeB magnets and much higher than other magnets.

2.The maximum operating temperature of SmCo magnets is 550℃, which is the highest temperature among all magnets.

3.SmCo magnets have strong corrosion and oxidation protection properties, no surface corrosion protection treatment is required, and the magnets can be used for a long time.

4.The extremely low temperature coefficient of SmCo magnets is generally -0.030%/K.

SmCo magnets are widely used in aerospace, defense industry, microwave, communications, medical devices, automobiles, magnetic pumps, instruments, various sensors, high-end motors and other industries.

Samarium Cobalt Magnets

What is the use value of SmCo magnets?

SmCo magnets (SmCo) and neodymium iron boron (NdFeB) magnets, together known as rare earth magnets, are alloys of lanthanide elements. Rare earth permanent magnets are the most advanced commercial permanent magnet materials available today. SmCo magnets are available in a variety of qualities to meet a variety of performance and application requirements.

Samarium cobalt permanent magnets have a high energy product and high coercive field strength. The magnetic properties are far superior to those of AlNiCo and ferrite permanent magnets. The maximum magnetic energy product is up to 239 kJ/m3 (30 MGOe), which corresponds to three times AlNiCo permanent magnets and eight times ferrite permanent magnets. Therefore, components made from samarium cobalt materials are small, light and stable in performance.

The magnetic properties of SmCo magnets are not weaker than those of NdFeB magnets. They have the characteristics of high coercive force, good temperature stability (the maximum operating temperature is 250 to 550 °C and the Curie temperature is 700 to 800 °C) and the Samarium cobalt is corrosion resistant. without galvanic treatment, widely used in many fields, let's consider in this article the usual applications of samarium cobalt magnets

What are the characteristics of SmCo magnets?

Samarium cobalt is another rare earth magnet mainly composed of cobalt and samarium, and is the most expensive magnetic material in manufacturing and manufacturing. Much of the cost is due to the high cobalt content and brittleness of the alloy. This permanent magnet material has high corrosion resistance and can withstand high temperatures of up to 350 °C. Samarium cobalt magnetic materials are widely used in the aerospace market or industrial fields where performance is a priority and cost is secondary. Samarium cobalt is the second strongest magnetic material and has excellent resistance to demagnetization.

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