Samarium Cobalt Magnets

SmCo - Samarium Cobalt Magnet Types

Samarium-cobalt (SmCo) magnets are powerful permanent magnets that are among the rare earth magnets and are composed of two basic elements, samarium and cobalt. These magnets offer very strong magnetic properties and stand out with their ability to withstand high temperatures.

Features of Samarium Cobalt Magnets

• Resistance to Demagnetization: Samarium-cobalt magnets are highly resistant to demagnetization.
• High Temperature Resistance: These magnets have maximum operating temperatures ranging from 250 °C (523 K) to 550 °C (823 K) and Curie temperatures ranging from 700 °C (973 K) to 800 °C (1,070 K).
• Expensive Their cost is high due to the rare earth elements they contain.
• Resistance to Corrosion and Oxidation: Samarium-cobalt magnets have a strong resistance to corrosion and oxidation, so they usually do not need to be coated.
• Resistance to High Temperature and Poor Working Conditions: These magnets can be widely used in harsh working conditions and high temperatures.
• Fragility: They are fragile and tend to crack or chip.
• Energy Product: Samarium-cobalt magnets have maximum energy products ranging from 14 megagauss-oersted (MG-Oe) to 33 MG-Oe, which is approximately 112 kJ/m3 to 264 kJ/m3. Their theoretical limit is 34 MG-Oe, about 272 kJ/m3.