Looking for a material with high mag. permeability, but low residual mag.

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SUMMARY

The discussion focuses on the search for materials with high magnetic permeability and low residual magnetism for use in electromagnets. The user is currently utilizing Iron and permalloy cores but is dissatisfied with the level of residual magnetism. Suggestions for alternative materials that meet these criteria are sought, particularly in the context of creating effective electromagnets for attracting ferrous materials.

PREREQUISITES
  • Understanding of magnetic permeability and its significance in electromagnet design.
  • Familiarity with residual magnetism and its effects on electromagnet performance.
  • Knowledge of materials such as Iron and permalloy used in magnetic applications.
  • Basic principles of electromagnetism, including the Curie temperature and its implications for material behavior.
NEXT STEPS
  • Research materials with high magnetic permeability and low residual magnetism, such as soft magnetic alloys.
  • Investigate the properties of ferrites and their applications in electromagnet design.
  • Explore the effects of temperature on magnetic materials, particularly above the Curie temperature.
  • Learn about advanced materials like amorphous steel and their benefits in reducing residual magnetism.
USEFUL FOR

Engineers, material scientists, and hobbyists involved in electromagnet design and optimization, particularly those seeking to enhance performance by minimizing residual magnetism.

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Hi, I am trying to make a electromagnet to attract a ferrous material..

Currently I am using Iron and permalloy cores for my coil electromagnets, but the residual magnetism is higher than I'd like.
Is there any material with a high magnetic permeability AND low residual magnetism?

Thanks for any suggestions!
 
Engineering news on Phys.org
This might not help, but hot ferro magnets above their Curie temperature are paramagnetic. Otherwise it seems like the materials tend to pick up their own field...
 

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