Average Domain Size & Permanent Magnet Creation

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SUMMARY

Permanent magnets are created using a mixture of elements, primarily iron combined with nickel or cobalt, to enhance stability and magnetism. Iron alone is not suitable for permanent magnets as it can lose its magnetization when subjected to physical disturbances. The average size of magnetic domains is not definitively established, as domain sizes can vary widely and are influenced by material properties and external conditions. This variability makes it challenging to provide a specific average size for magnetic domains.

PREREQUISITES
  • Understanding of magnetic materials and their properties
  • Knowledge of the composition of permanent magnets, specifically iron, nickel, and cobalt
  • Familiarity with magnetic domains and their behavior in materials
  • Basic principles of magnetism and magnetic field interactions
NEXT STEPS
  • Research the properties of magnetic materials, focusing on iron, nickel, and cobalt
  • Explore the concept of magnetic domains and their significance in material science
  • Investigate methods for measuring magnetic domain sizes in various materials
  • Learn about the manufacturing processes of permanent magnets and their applications
USEFUL FOR

Students studying material science, physicists interested in magnetism, and engineers involved in the design and application of permanent magnets.

miffy
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what is the average size of a domain?
and how are "permanent" magnets made?

thanks, erin.
 
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Permanent magnets are made from a mixture of elements usually iron and nickle or cobalt. Iron isn't a good permanent magnet, if you have an iron magnet then just droping it may make it scatter into different domains, therefore you try to mix it with weaker but more stable magnetic elements. I don't quite understand what you mean by the average size of domians, to my knowledge there is no specific sizes in which domians come in.
 
thanks. my teacher asked us to find the average size of domains, and i honestly looked everywhere i could think of and couldn't find anything.
 

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