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Higher Than Alnico Samarium Cobalt Magnets Smco Ring Magnets
Samarium Cobalt (SmCo) Magnet
As the first commercially viable rare earth permanent magnet material, Samarium Cobalt (SmCo) is considered to still be the premium material for many high performance applications.
SmCo Magnet come in energy products from 16 MGOe up to 33 MGOe.Their high resistance to demagnetizing influences and excellent thermal stability has ensured Sm-Co as the premium choice for the most demanding motor applications, turbo-machinery and traveling-wave tube. The change of flux density of SmCo magnet can be lower than 5% per 100 °C.
In addition, the corrosion resistance of SmCo Magnet is significantly higher than, for example, NdFeB. For most applications a coating or plating is not required. It is still recommended to coat the SmCo magnet in acidic and high moisture conditions. The corrosion resistance of SmCo Magnet has also offered a high degree of comfort to those looking to use magnets in medical applications. Coatings and metal platings can be applied to increase the ability to clean the magnet. A metal plating will allow for greater cleanliness for vacuum and medical applications. Nickel plating can be applied to fasciculate soldering the magnet and this is especially used for adhesion to a printed circuit board.
Samarium cobalt magnets are extremely brittle, so they are prone to chipping and cracking. Therefore, special machining techniques involving diamond-grinding must be used to machine this material prior to magnetization. We are fully equipped to machine these materials to your project’s specialty requirements.
Notes:
--Sintered Samarium Cobalt magnet is not suitable to be structure part due to inherent brittleness.
--SmCo5 magnet has better processability in comparison to Sm2Co17 magnet.
--Customers who purchase non-magnetized sintered SmCo magnet should equip appropriate magnetizing equipment to ensure saturated magnetization.
--AOMAG also serve coated Samarium Cobalt to use under harsh conditions.
