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The specific difference between samarium cobalt and neodymium iron boron magnets
Time:06/11/2021
There are a lot of introductions about samarium cobalt and neodymium iron boron magnets on the website, but they did not introduce the difference between the two. Today, I will give you a supplementary introduction, which is more detailed than the existing Baidu rankings.
 
  1. The picture difference between samarium cobalt and neodymium iron boron
 
  
 
  2. The magnetic difference between samarium cobalt and neodymium iron boron magnets
 
  Most of the factors in choosing a certain kind of magnet are magnetism. Both of them are NdFeB magnets stronger.
 
  Third, the difference in temperature resistance between samarium cobalt and neodymium iron boron magnets
 
  NdFeB can withstand a temperature of up to 220 degrees, and samarium cobalt is up to 350 degrees, which is much higher;
 
  4. Which is the better stability of samarium cobalt permanent magnet or neodymium iron boron permanent magnet?
 
  The temperature coefficient of the remanence of NdFeB is relatively large, the higher the temperature rise, the lower the remanence; the temperature coefficient of the remanence of Samarium Cobalt is very low, at the same temperature, the demagnetization of Samarium Cobalt is much less than that of NdFeB. In addition, NdFeB must be electroplated, otherwise it is easy to be oxidized and corroded and weathered.
 
  5. The price difference between samarium cobalt and neodymium iron boron
 
  Neodymium iron boron rare earth elements neodymium and boron account for a small proportion, so the price is relatively cheap; samarium cobalt magnets have more rare earth elements samarium and cobalt, about 70% are samarium and cobalt, so the price is relatively expensive.
 
  Six, the difference in processing characteristics between rare earth samarium cobalt and rare earth neodymium iron boron
 
  Both materials are very brittle, relatively speaking, neodymium iron boron magnets are easier to machine.
 
  Seven, the difference between the maximum energy product of samarium cobalt and neodymium iron boron
 
  The maximum energy product of neodymium iron boron magnet is 52M, while the maximum energy product of samarium cobalt neodymium iron boron magnet is 32M. It can also be seen from this that the magnetic force of neodymium iron boron is much higher than that of samarium cobalt magnet.
 
  8. The difference between the outer surface of samarium cobalt and neodymium iron boron (neodymium magnet)
 
  Samarium cobalt usually does not require surface treatment, but if the use environment is harsh, the service life will be longer after electroplating, and it will be more beautiful. NdFeB is easy to oxidize and requires surface electroplating treatment.