Average Domain Size & Permanent Magnet Creation

AI Thread Summary
Permanent magnets are typically created from a combination of elements, primarily iron mixed with nickel or cobalt to enhance stability. Iron alone is not an effective permanent magnet, as it can lose its magnetization if disturbed. The concept of an average size for magnetic domains is unclear, as there is no standardized measurement for domain sizes. Many participants in the discussion express difficulty in finding specific information on domain sizes. Understanding the composition and stability of permanent magnets is crucial for their effective use.
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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