Demagnetizing Neodymium magnets in a candle flame?

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SUMMARY

Partly demagnetizing neodymium magnets can be achieved using a candle flame, as the Curie temperature for these magnets ranges from 310-400°C. However, the coating of Nickel-Copper-Nickel may influence the process, as it can withstand high temperatures without burning. The effective temperature range for partial demagnetization is approximately 80-200°C, which is achievable with a candle flame. Understanding the thermal properties of the materials involved is crucial for this process.

PREREQUISITES
  • Knowledge of neodymium magnet composition (Neodymium, Iron, Boron)
  • Understanding of Curie temperature and its significance in magnetism
  • Familiarity with thermal properties of Nickel and Copper
  • Basic principles of magnetism and demagnetization techniques
NEXT STEPS
  • Research the Curie temperature of various magnet materials
  • Explore the effects of high temperatures on Nickel-Copper-Nickel coatings
  • Investigate alternative methods for demagnetizing neodymium magnets
  • Learn about the safety precautions when handling high-temperature materials
USEFUL FOR

Materials scientists, hobbyists experimenting with magnetism, and anyone interested in the thermal properties of neodymium magnets.

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Is it possible to partly demagnetize neodymium magnets in the flame of a candle?
Those magnets are made up of Neodymium, Iron and Borium.
They have a Nickel-Copper-Nickel coating.
The Curie temperature for Neodymium magnets is 310-400°C.
Neodymium (magnetic powder) burns but does the coating prevent that?
How does Nickel and Copper react to high temperatures?
 
Engineering news on Phys.org
The Curious Temp to
partly demagnetize neodymium magnets
is ~ 80-200°C
I suggest a... boiling party ツ
 

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