Home»Knowledge»  Two basic types of Rare Earth magnets

Two basic types of Rare Earth magnets

by Stanford Magnets

According to their materials, rare earth magnets can be classified into two basic types: Neodymium Iron Boron rare earth magnets and Samarium Cobalt rare earth magnets.
  Neodymium Iron Boron (NdFeB) - Energy products go up to 55 MGOe, can generate very high fields; however, typically needs to be used in lower temperature applications than Samarium Cobalt can withstand. Higher temperature coefficient of Br (approximately 1.1%).
  Samarium Cobalt (SmCo) - Energy products go up to 32 MGOe, can typically be used in high temperature (350°C) environments, and typically have a small thermal coefficient of Br (approximately 0.03%/degree).

Pre: Permanent Magnet Stability

Next: Measuring Permanent Magnets' Properties with Vibrating Sample Magnetometer