Strongest Magnetic Materials: Rare Earths and NdBFe

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SUMMARY

Rare Earths, specifically Neodymium-Boron-Iron (NdBFe), are confirmed as the strongest known magnetic materials currently available. The discussion highlights that while NdBFe is widely used, there is no established theoretical limit to magnetic strength. The highest magnetic field achieved in a small volume is approximately 30 Tesla (T), while Magnetic Resonance Imaging (MRI) machines typically operate at around 2 T.

PREREQUISITES
  • Understanding of magnetic materials and their properties
  • Familiarity with Neodymium-Boron-Iron (NdBFe) composition
  • Knowledge of Tesla as a unit of magnetic field strength
  • Basic principles of magnetic resonance imaging (MRI)
NEXT STEPS
  • Research advancements in Rare Earth magnet technology
  • Explore the applications of NdBFe in various industries
  • Investigate theoretical limits of magnetic field strength
  • Learn about the design and operation of MRI machines
USEFUL FOR

Materials scientists, engineers in the field of magnetics, and professionals involved in MRI technology will benefit from this discussion.

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As far as I am aware, Rare Earths and particularly NdBFe is the strongest known magnetic material. Is this true and what is the strongest magnetic material known that it is in common use and what is possible theoretically? Thank you.
 
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As far as I know there's no theoretical limit. The top value in a small volume is something around 30 T and inside an MNR machine is around 2 T.
 

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